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Volume I : Move Towards Holistic Health
Section II : Aspects Of The Human Enviornment And Their Effects On The Lives Of The People - A Brief Survey Of The Issues Involved
In this Section, we survey the different
aspects of the human environment, viz. land, water and
atmosphere and see how they affect the lives of the
people. Certain aspects of global pollution - acid rain,
the ozone layer and nuclear fallour are also considered.
The environment that we work in also has certain factors
that affect our health and lives - these are also
studied. Thus this section is essentially divided into
four parts:(a) Land
(b) Water (c) Atmosphere and (d) work Environment.
A:
LAND
The issues
related to land that we choose to dwell on are changes in
agricultural practices, dams, mines, housing and soil
pollution.
CHANGES
IN AGRICULTURAL PRACTICES
Changes in
Agricultural Practices : The Green Revolution introduced
the trends towards hybrid and high-yielding varieties of
seeds. These replaced our traditional hardier strains of
seeds. The newer varieties required large quantities of
chemical fertilizers and pesticides and large volumese of
water for irrigation. Even small and marginal farmers who
do not have the resources - either in terms of capital
for seeds and fertilisers or water for irrigation - are
lured by the promises of phenomenal yields. without the
requisite water, the strong chemical fertilizers and
pesticides destroy the productivity of their already
meagre lands. The small farmers lose not only the
productivity of their lands, but also their pool of
indigenous varieties of seeds, yet another factor to be
dependent on external sources for !
With the advent of the market forces, the cropping
patterns have changed too-instead of the traditional
crops, more cash crops are being grown now. Nutritive
diets available from traditional food crops grown earlier
have been largely replaced by weaker diets based on
non-traditional foods and imported grains.
Three Points about the
Seeds issue (Excerpts)
- Food Divesity :
Despite the 11 thousand food items found in large
grocery stores (and the 7 thousand others test
marketed each year) 95% of global human nutrition
is derived from only 30 plants and eight plants
give us three quarters of our caloric intake.
- Feeding at the same
trough : All thirty plants originate in the Third
World and the greatest divesity of gene raw
material for future breeding remains there. The
North may be grain-rich < but it gene-poor,
and northern breeders depend upon imports of gene
mateial in order to breed against ever mutating
pests and diseases. Without regular infusions of
this raw material all northern crops would
gradually lose their viability.
- Genetic Erosion :
With the spread of green revolution varieties,
farmers eat the old seed and sow the new. Ten
thousand years of plant genetic diversity can
disappear in a bowl of porridge. Like building
the roof with stones from the foundation, the new
technology is destroying its own base. The rate
of extinction is staggering. The genetic
diversity of most cereal crops will have vanished
from their original area by the end of this
decade...
The Dungarpur district of
Rajasthan, one of the worst drought affected districts in
the country has lost most of its grain producing
capacity. Many local people, who twenty to thirty years
ago, used to be self sufficient in maize and wheat, now
eat Australian wheat which they receive through the
government drought relief programmes. The people state
that this wheat is less nutitive than the local grains
they used to produce earlier.
DAMS The rationale offered by the planners for large dams
is to generate electricity and provide irrigation for the
countrys agriculturists. heavy investment in the
many major hydro-electric projects has not had the
desired effects the thousands of mega watts of electric
power that has been generated has mainly benefitted
industries. The share of agriculture stood at a meagre
14.2% in 1978-79. About irrigation, the Planning
commission itself has admitted in the Sixth Plan Document
that the huge irrigated land investment made have yielded
disappointingly low returns. While irrigated land should
yield four to five tonnes of grain per hectare, the
national average for such fields is only about 1.7 tonnes
per hectare.
The Tawa dam in the Hoshangabad district in Madhya
pradesh built at the total cost of Rs.300 crore had the
following results:
Table 1 : Yields before and
after Tawa Dam
|
Crop Average yields per
acre (in quintals)
|
| |
Before irrigation
|
After
irrigation
|
| |
|
|
1977-78
|
1978-79
|
1
|
Paddy
|
4.00
|
3.98
|
3.88
|
2.
|
Jowar
|
2.82
|
3.64
|
2.74
|
3.
|
Maize
|
4.82
|
4.07
|
4.01
|
4
|
Wheat
|
3.14
|
3.30
|
3.06
|
5
|
Gram
|
2.43
|
1.96
|
2.08
|
The average yields for all
crops declined after irrigation. The Comptroller and
Auditor General had the following to say in a report :
According to the scientific and technical opinion now
available, because of the soil and weather condition, in
the command area of the Tawa project, agricultural
operations in both kharif and rabi seasons with the help
of irrigation could not have been productrive but on the
other hand, irrigation could even be harmful. The
cultivators also resisted changing their habits and the
cropping pattern they have been used to. Thus, it would
appear that the project was ill-conceived and the
benefits that were presumed would be available, could not
have been realised. This would also indicate the need for
a second look at the programme for development of the
command area, so that possible further unnecessary and
wasteful expenditure could be avoided.
Dr. D.R.Bhumla, former Agricultural Commissioner and Vice
Chancellor of Haryana Agricultural univesity, says :
".... from the
experience of major and medium irrigation works in India,
it is evident that its benfits in arid areas, though
spectacular for the first 10 to 20 years, gradually get
reduced and a considerable portion of the land gets
deteriorated because of waterlogging and salinity. In the
humid areas, the benefits are doubtful from the beginning
and in many cases negative. The programmes of major and
medium irrigation works, as has been envisaged for the
future in humid areas, in my opinion, would not lead only
to disastrous consequences in degradation of soil and
environment, but would also result in reduced
agricultural production. It is time to halt the expansion
of these programmes...
Not only do dams mean unnecessary and wasteful
expenditure, out of the public exchequer, but they also
have adverse multiplier effects. Most of the dams have
resulted in the drastic reduction of surrounding forest
cover. Forests are cleared for approach roads, offices,
storage of construction material, for rehabilitation of
the affected peoples or then simply cut down by
contractors even in unaffected areas. The deforestation
process sets up its own cycle of further perpetuation of
ecological imbalance -- soil erosion, siltation,
pollution, wild life destruction, cultural ethnocide -
are the costs of thousand of mega watts of electricity
and millions of hectares of irrigated land that dams
promise.
An issue of foremost importance when dams are being
discussed, is how they affect people. Millions of local
inhabitants - mostly tribals - are rudely displaced to
locate the dams. They lose their centuries old
roots and ties. promises of rehabilitation by the State
are lofty but often come to nothing. Many a time they are
rehabilitated on degraded land in non contiguous areas -
thus villages and families are broken up and scatterd.
sometimes the displaced people are compensated with
money. This fails to purchase the land, the value of
which is soaring the beyond reach of the buyers. For
instance, in the case of the Ukai dam in Gujarat,
"Out of a total of 18500 affected families, only
3,500 could be resettled. Though Rs.7 crore, was paid as
compensation, only Rs. 1 crore was deposited in banks,
the rest being squandred or used for daily needs."
There are some otehr hazards of dams which are
significant. dams have been known to cause earthquakes
because the large quantities of water which impounds in
them. Earthquake have been felt in the Koyna district.
After the impounding in them. Earthquakes have been felt
in the Koyna district. After the impounding of water in
the Koyna dam of Maharashtra reservoir in 1962, a major
quake in December 1967, took nearly 200 lives, injured
1500 people and rendered thousands homeless. Reports of
tremors in idukki district of Kerala where the Idukki dam
is situated on the Periyar river, have also been coming
in.
Dams are known to burst too. The worst disaster was the
Machu dam in Gujarat in 1979. Hundreds were killed and
the town of Morvi along with several villages was
destroyed by the flood waters.
What is the alternative to large dams? Development workes
have shown that small to medium sized earthen dams built
with local peoples participation and managed by
them will be far more successful than the large capital
intensive and centrally managed temples.
Other ways of managing and conserving the surface water
and ground water resources on local basis will have far
reaching consequences
Small hydro electric plants can be very useful in
augmenting the countrys available hydroelectric
potential and in providing electricity in remove areas,
particularly the hill districts. CentralElectricity
Authority has estimated a potential of 25 billion kwh
(Kilo watt hours) from small plants - 60% of our present
installed capacity. chinas example of 87,000 small
hydel works - almost a third of its total hydropower is
something that India can learn from. thes micro hydel
schemes would serve the nearby rural populations and not
the large centralised urban-based industries.
MINES: are a crucial source of raw material for industry.
Planners also justify mining as bringing jobs to backward
areas. In fact, because of high degree of mechanisation,
in the mining process, there are a limited number of
low-skilled jobs available. Skilled labour is imported
into these areas, leaving the local population
unemployed.
Mining activity also leads to loss of agricultural land.
It is not just the mines that eat away the agricultural
alnd, roads, railways, townships, stock yards, processing
operations - all encroach on land that earlier yielded
food. Mining results in the removing of all vegetation
and topsoil leaving leaving the land barren and
devastated. disposal of the debris onto adjoining fields
increases its infertility. Rain and wind further the
process - they transport the waste mateial onto other
cultivable land, reducing its productivity.
Mining on the hills is worse. the example of Nahi Kala
area of Doon Valley, U.P. illustrates the horrors of
limestone quarrying.
Limestone quarrying in doon Valley : since the last 26
years, sanctioned and formalised quarrying has been going
on in 60 acrea of reserved forest areas. These forests
had been a rich pocket of genetic wealth and means of
sustenance of people of 31 surrounding villages.
Quarrying started on a large scale when refugee miners
came in from Pakistan after partition. The quarrying was
formalised in 1962. Over the years, it affected the
ecosystem in drastic ways. The lush green tree covered
hills have been reduced to pathetic grey ash hillsides.
The forest cover and topsoil over large areas in the
catchments was destroyed. The rejects and overburdens
spilled over to areas on the hillslopes, not directly
under the quarry lease. Both these factors affected the
hydrological capacity of the hillslopes - the result was
that the natural springs in the local catchment areas
registered a decrease of 50% in their lean period
discharges in the last 20 years. Large amounts of debtis
has been dumped below the limestone belt. This has little
water - infiltration capacity - so the catchment area in
the Mussoorie Hills has reduced.
The debirs dumps added to the dangers of landslides on
the already fragile hills worsened further by the use of
explosives. The debris was washed down during the
monsoons and increased the levels of the riverbeds by
several feet accentuting the impact of floods. During the
dry periods, the rivers dried up as the wate was
displaced by the additional boulders and rocks. Water
supply to the Doon Valley, especially to the urban
settlements, has been getting progressively reduced.
Agriculture and food production have been adversely
affected by the disturbance in the ecosystem. The flow of
silt and debris has destroyed the irrigation channels in
the villages below the quarries. Grazing lands - cattle
population has decreased due to mining by as much as 40%.
This has affected milk production in the area, as also
the production of energy for farm operations and
producion of animal dung. The last has affected soil
fertility very badly. The overall impact is a collapse of
food production system. Not only are the villages ain the
vicinity of the quarries adversely affected - the
overloaded streams and rivers with their slower flows
have also affected agricultural activity on the plains
leading to increased crop failure.
HOUSING
Housing : III maintained
poorly ventilated and cramped residentialsurroundings are
responsibel for the rapid spread of infectious diseases,
particularly respirtory diseases and tuberculosis.
Accidents associated with poor housing conditions, such
as broken stairs, and ill paved yards are a leading cause
of death, mainly among women, children and older age
groups. Unsatisfactory home environment in crowded
conditions is also responsible for psychiatric problems
and mental problems. WHOs health hazards of the Human
Environment (Geneva, 1972) lists several studies showing
how the home environment affects health. some of the
aspects apart from overcrowing and lack of sanitation
whcih affect health and cause deaths are : fires due to
faulty house wiring, electrical appliances and heating
equipment. poisoning due to consumer products consisting
of toxic chemicals, e.g. laundering and cleaning
products, detergents, cosmetics, paints, pesticides etc.
The following table shows that even basic facilities like
piped water supply, toilets and bathrooms are the
privileges of a minority.
Table 2 : Condition of
Structure and Facilities available to Households
in Urban & Rural India
|
| |
Urban |
Rural |
All India |
| 1 |
Households in 1971 census (in
million) |
19.12 |
77.94 |
76.06 |
| 2. |
percentage living in houses: |
|
|
|
| a |
Excellent |
18.3 |
6.6 |
8.9 |
| b |
Fairly good |
63.3 |
66.0 |
65.6 |
| c |
bad & Dilapidated |
18.4 |
27.4 |
23.6 |
| 3 |
Age of houses in years: |
|
|
|
| a |
0-5 |
31.3 |
15.9 |
18.9 |
| b |
5-10 |
10.0 |
14.6 |
13.7 |
| c |
10-20 |
46.8 |
23.3 |
22.1 |
| d |
20-40 |
21.9 |
21.2 |
21.3 |
| e |
40 & above |
20.0 |
23.0 |
24.0 |
| 4 |
percentage of houses having: |
|
|
|
| a |
I. Piped water inside |
26.6 |
0.4 |
3.6 |
| |
ii. Piped water outside |
30.6 |
2.2 |
7.8 |
| b |
Electricity |
27.9 |
1.0 |
6.3 |
| c |
Bath |
33.1 |
7.9 |
1.29 |
| d |
I. Toilet of any type |
34.0 |
3.8 |
13.7 |
| |
ii. Flush Toilet |
12.4 |
0.1 |
2.5 |
| Source : Goi Ministry of Planning,
Statistical Abstract India - 1975 (New Delhi :
central statistical Organization, 1976). Quoted in Health Status of
the Indian people FRCH (1987, Bombay), p. 196.
|
A report on housing
financed by RBI (Reserve Bank of India) in 1978 estimated
tghat 5.59 million houses in the rural areas and 1.53
million houses in the urban areas need to be built every
year for the next twenty years. This would help to
eliminate the backlong, meet fresh demand and replace
dilapidated structures.
The urban housing shortage has led to mushrooming of slum
and pavement dwellings. The growth in the slum population
in the recent years has been a result of large scale
migration from the rural areas. The rural people,
deprived of ways of earning a livelihood and because of
lack of sustainable agriculture, flock to the urban,
industrial centres, as a means of sustaining themselves
and their families.
About 82% of Bombays population lives in one room
abodes, including slums. In calcutta, slums house 40% of
thge metropolitan population. The figure for Madras is
30%. In Delhi, the slum population in 1977, was 25% __ in
a span of 4 years in 1981, the figure rose to 53%.
Resettlement efforts have hardly given the results that
were hoped for. The main reason for this is that the slum
and pavement dwellers have not been part of the planning
process that sought to resettle them. Society for
Promotion of Area Resources Centre (SPARC) a voluntary
organisation based in Bombay has been working with
pavement dwelles- mainly women in a unique training and
self education process. The process seeks to empower
women to intervene actively in the process of securing
their shelter.
Rural housing also faces many problems as mentioned in
Section I, with the drfastic reduction in biomass, rural
people face a shortage of building materials like thatch,
timber etc. Some of the Stae Governments have also
enacted laws that prevent people from cutting even their
own trees for timber for buildings, without prior
permission of the social administration. As poor people
lose control of their traditional building resources,
they tend to turn to urban building mateials - like
brick, and cement, which apart from being expensive,
(even for urban populations) are not ecologically
ppropriate, being energy intensive and requiring mining
operations. One conseqauence of imitating brick cement
architecture is that the value of mud and mud houses
which is the raw material for the majority of rural
houses - list lost.
SOIL POLLUTION
Soil
Pollution generally occurs because of:
- use of chemicals,
such as fertilizers and pesticides in
agriculture.
- dumping of land of
waste mateials from idnsutries, including
radioactive materials; and
- dumping on land of
domestic refuse and solids resulting from the
treatment of sewerage.
The soil is thus becoming
increasingly polluted with chemicals including heavy
metals and products of the petroleum indsutry which can
reach the food chain, surface water or ground water and
ultimately be ingested by man.
In most cities, there are open rubbish dumps that are
easily accessible to flies, insects and animals. the
common method of disposing refuse generated in homes,
restaurants, markets and other public places, is to
indiscriminately dump it on the adjoining land, or in
some low-lying areas. Besides refuse, the nighsoil
collected from unsewered areas, is also disposed off in
the same ground either by trenching or compositing,
giving rise to the danger of epidemics. Most towns have
some organisation for collection, transportation and
disposal of wastes, but these suffer from shortage of
funds, inadequate transport faciliteis, bad management
and lack of public cooperation. Sulabh International, an
organisation in Patna, has been successful in showing how
human waste of urban areas can be used to make biogas to
generate electricity.
The problem of disposal of nuclear waste is a serious one
in India, as elsewhere in the world. Every once in a
while, there are newspaper reports of how children
playhing on dumped waste heaps suffered serious burns
from radioactive materials. not only do developing
countries have to contend with their own waste, but also
imports of toxic waste that the developed countries do
not want on their own land.
Ruth Norris points out in Pills, Pesticides and profits :
As the Unites states Government has acted to impose
strict regulations on the domestic transport and disposal
of hazardious wastes, American companies have begun to
seek solutions to their waste control problems in less
regulated developing countries. Several nations in West
Africa. the Carribean and Latin Amerca have been
approached, in some cases with lucrative offers of
payments for recicing industrial wastes from the United
states.
Most developing countries have neither government
agencies, regulatory authority, nor technical expertise
sufficient to prevent the occurrence of Love
canals - sites where unsuspecting residents are
exposed to hazardous chemicals, improperly disposed of,
such as the notorious one in upsate New York. Yet because
no comprehensive United States or International Laws
govern the export and disposal on foreign soil or toxic
wastes, the developing world must once again weigh the
payoff, whether it is economic development or technical
assistance or simply cash, against the risk to health and
environment posed by toxic wastes.
b. WATER
Water is another one of
natures resources that is being affected adversely
by mans thoughtlessness.
Systems for optimum harvesting of rainwater have either
not been designed or are not being used sufficiently.
Tanks which usedd to be traditional Indias method
of collection of rain water, have been neglected - much
of the attention and resources have been spent on
developing dams and the canal system of irrigation.
Another issue to be mentioned is the overexploitation of
groundwater resources by boring of tubewells leading to
the lowering of the water table. The Green revolution in
the Indo-Gangetic plains drew heavily on the groundwater
resources. In Maharashtra, too, where earlier coarse
grains were cultivated with the available rain water,
there has been a shift to the cultivation of water
intensive sugarcane crop. The over exploitation the
traditional agricultural practices, but to satisfy the
market forces of generating cash crops. In the coastal
areas, this has led to the diastrous condition of
development of salinity. In parts of coastal Saurashtra
for example, water intensive vegetables and sweet lime
begun to be cultivated in 1950s. By 1970, sea water had
intruded into the area, making the ground water in
Maharashtra has increased the number of problem villages
with no source of drinking water from 17,000 in 1980 to
23,000 in 1983.
Pollution of ground water sources is a serious matter
too. Textile printing and dyeing industries, tanneries
and coir processing industries are some of the industries
that discharge chemical effluents and contaminate the
ground water. Certain aras around Jodhpur, where many
small scale textile dyeing units are situated, were found
to have various forms of cancer among other diseases.
Cattle, wildlife and crops were also found to be
affected.
"Pollution of water - surface or ground - causes
several health problems, most of the acute diseases
affecting Indian are water - borne such as diarrheas,
amoebic dysentery, cholera, typhoid, and infective
hepatitis. diseases caused by water supply can be
classified as follows:
- Waterborne diseases,
spread by drinking water, contaminated by faces
or by using contaminated water for personal
hygiene or for washing food, includde all the
above mentioned diseases.
- Water washed
diseases, spread by poor quality of water, used
for personal hygiene, include skin diseases, such
as scabies and leprosy and eye diseases such as
trachoma and conjunctivitis.
- Water - insect -
related diseases, spread by insects (carries or
vectors) that breed in water or breed near it,
include malaria and yellow fever (mosquito),
river blindness (blckfly), and sleeping sickness
(tse-tse fly).
- Water based diseases,
spread by parasites living in water, include
schistosomiasis (bitharzia) transmitted by snails
and guinea worm transmitted by microscopic
waterflies; and
- Diseases from
polluted water (or food) supply include
hook-worm, roundworm, and whipworm.
it is estimated that 73
million work days are lost every year in India, due to
water related diseases.
India is rich in rivers - surface flow represents 97% of
the available water in India. But rather than being a
boon, these rivers are proving to be quite a disaster in
their pollution effects. Yamuna whose course is 48 kms,
through Delhi picks up nearly 200 million litres of
untreated sewage and 20 million lites of industrial
effluents including about 1/2 million litres of DDT
wastes. The sewage treatment plants are capable of
treating only half of Delhis wastes. Water samples
from the Yamuna taken near Agra are 20 times more
polluted than those taken when the river enters Delhi.
The section of the river from the point of Najafgarh
drain upto Okhla show that the water ius not even fit for
irrigation!
The FRCH report tells the
following about water pollution in Bombay:
"A study by the Institute of Sciences, Bombay in
1980 revealed that the Kalu river, flowing through the
industrial suburbs of Ambernath, Ulhasnagar and Kalyan in
north east Bombay and emptying into the Thane creek, had
mercury concentrations far above the permissible levels.
Mercury poisoning from eating fish that had accumulated
methyl mercury was responsible for the death and maiming
of almost 300 persons at Minamat and Niigata in japan in
1953. Mercury enters the good chain through contaminated
fish or cattle that graze on plants in shallow water. The
study investigated in a 10 km stretch between Ambivali
and Titwala, receiving toxic wastes from a rayons
factory, a paper mill, a dye factory and a chemical
plant. It found mercury levels between 1.6 and 20 ppm
(parts per million) when permissible levels as per WHO
standards for human consumption is 0.5 ppm. Also blood
samples of villages near Ambivali, revealed levels
ranging from between 14 ppm and 55 ppm when the normal is
1.5 ppm. The consequence has been a higher mortality;
also most affected villagers had an impaired Central
nervous system, maiming them for life. More recently,
Maharashtra Government set up the A.K. Ganguly committee
(Septembe 1986) to study the pollution levels in the
Bhatsai river, one of Bombays main sources of
potable water. The report submitted on February 4, 1987,
confirms the fact that industries located within the
rivers catchment area are discharging toxic
effluents like hydrochloric acid, caustic soda, carbon
tetrachloride, benzene, tolvene, cadmium, chromium,
nickel etc. into the river, and that the filtration plant
is not designed to remove these contaminatns nor is there
any foolproof method to deal with them. The committee
recommended relocation of the polluting industries.
however relocation without stringent pollution control
and environmental planning is no solution. In fact, when
industry is located in so-called backward areas there is
a tendency on the part of the pollution control
authorities to relax implementation of stadnards
specifying the levels of emission or discharge of
pollutants and an inclination on the part of industry not
to invest adequately on pollution control equipment.
TABLE 3 : SELECTED
CHEMICALS & ASSOCIATED HEALTH HAZARDS.
| |
use |
HAZARD |
| Acrylonitrile |
Acrylic fibres/synthetic rubber
plastics |
highly toxic / carcinogentic /
teratognic. |
| Arsenic |
Pesticides / Unanic medicines /
glass |
Toxic / dermatitis / muscular
paralysis / damage to liver & kidney/
possibly carcinogenic & teratogenic. |
| Benzene |
Octane number of
gasoline/manufacture of many chemicals |
Leumekia/chromosomal damage in
exposed workes/ behavioural changes. |
| Beryllium |
Aerospace industry / ceramic parts /
household appliances |
Fatal lung disease / heart &
lung toxicity. |
| Cadmium |
Electroplating / plastics /
pigments/ supenphosphate fertilisers. |
Kidney damage / emphysema / possibly
carcinogenic, teratogenic & mutagenic. |
| Chlorinated organics (DDT, BHC,
etc.) |
Pesticides / Fumigeint |
Depression of central nervous system
/ possibly carcinogenic. |
| Chromates |
Tanning / paints / pigments /
corrosion inhibition / fungicides |
Skin ulcers / kidney inflammation /
possibly carcinogenic / toxic fish. |
| Lead |
Pipes storage batteries / paints /
printing / plastics / gasoline additive |
Intoxicant / neurotoxin / affects
blood system. |
| manganese |
Mining / welding / dry cell battery
/ ferromanganese |
nerous damage / damage to
repoductive system. |
| mercury |
Chloralkali cells / fungicides /
Pharmaceuticals. |
nervous damage / kidney damage. |
| Polychlorobiphenyls |
Transformers / insulation of
electricity. |
Possibly carcinogenic / nerve skin
and liver damage. |
| Sulphur dioxide |
Sugar / bleeding agent / pollution
from coalbased power stations. |
Irritation to eyes and respirtory
system / damage to plants and monuments. |
| Urea |
Fertilizer |
Bronchial problems / kidney damage. |
| Vinyl chloride |
Plastics / organic compounds
synthesis. |
Systematically toxic / carcinogenic. |
Organic and inorganic
chemical industries generate both liquid and sold wastes
that are treated very inadeauately before disposal
Generally the industry neutralizes the toxic waste water
from the plants with time and the neutralized liquid
effluents, whcih are still hjighly toxic, are discharged
into rives and ponds. The sludge and other solid and
semi-solid wastes are disposed off on fallow public land
which pollutes both ground and surface waters. Table 3
shows the health hazards associates with selected toxic
chemicals that need to be straingently regulated.
C. ATMOSPHERE
This Section deals with
pollution of the atmosphere. Air pollution, noise
pollution and pollution of the atmosphere due to tension,
depression etc. are discussed. Pollution due to acid
rain, the ozone layer and nuclear fallout are also
mentioned.
AIR POLLUTION
Air pollution : The
quality of the air that we breathe in is affected by
smoke from domestic cooking fuels, thermal power
stations, industries, vehicles, and mining activity.
Domestic pollution in the third world countries from
cooking fuels has been found to be the worlds worst
air pollutant. Rural women in Gujarat are said to inhale
40 times the volume of suspended particulates considered
safe by WHO. In barely three hours, they inhale the
amount of carcinogenic benzo (a) pyrene that equals 20
packs of cigaretts. The problem is made worse in the
monsoon and winterm when all the outlets in the house are
closed and the smoke stays for longer periods within.
Studies in Nepal, in higher altitudes, have shown a
strong association of domestic smoke with chronic
bronchitis.
A distressingly high incidence of acute respiratory
infection (ARI) was found and was the most important
cause of mortality and morbidity among infants below one
year of age. Anemic women with low haemoglobin levels are
affected very badly by the carbonmonixdfe emitted by
burning fuels during cooking - dizziness, headaches,
nauses are common sympotoms following even moderate
exposure to carbonmonoxide. During pregnancy, which
further lowers their reserves of haemoglobin, they become
more sensitive to carbonmonoxide. The exposure can also
affect the unborn child leading to reduced birth weight
and increased perinatal death rates.
Thermal Power stations spew out pollutants, fly ash, soot
and sulphurdioxide, despite the fact that the government
has set limits to pollution levels. Out of the 48 thermal
stations, surveyed in 1984, 31 had no pollution control
measures and only 6 had their pollution control equipment
functioning properly. The Badarpur and Indraprastha
thermal power stations are the biggest air polluters in
New Delhi. Thick black amog from the IP stations
chimneys coats the surroundings with a layer of
soot. tuberculosis incidence among the workerfs of the IP
power station has been found to be twice the normal
levls.
Industries like fertilizer factories and textile mills
pour out noxious gases, particulates and cotton dust.
"A detailed study of 4000 people conducted by KEM
Hospital and the Air Pollution prevention Cell of the
Bombay Municipal corporation in 1977-78 compared the
health of residents in a clean western suburb of Bombay
like Khar with that of residents of the mill area of
Lalbaug and the Chembur area with its concentration of
petrochemical plants. the residents of the congested
industrial areas were found to be suffering from a much
higher incidence of diseases like chronic bronchitis. TB,
skin allergy, anaemia and irritation of the eyes. The
absentee rate of workes was much higher particularly in
Lalbaugs textile mills and there was 10 to 16
percent incidence of byssinosis among the mill labourers.
There was also a rise in deaths due to cancer in Lalbaug
- twice as many as in Chembur or Khar.
Vehicles exhaust proved to be a major health hazard.
Delhi is the worst polluted city as far as vehicle
exhausts are concerned - 400 tonnes of pollutants are
vomitted everday by 500,000 vehicles. This is 34 per cent
of the smoke and dust emitted in the city. Over the last
decade, Delhis pollution levels have risen by 75
per cent.
A lethal contaminant in the atmosphere is lead - no less
than 400 kg is released in Delhi every day. Traffic
police and road and construction workers are particularly
vulnerable to it. samples from leaves on certain roads
show a lead concentration of upto 5 ppm. Lead is an
accumulative nerve toxin, which can cause irreversible
damage like mental retardation and other extremely
debilitating, but hard to measure effects. Children
absorb it five times faster than adults.
Mines throw up much dust - open cast coal mines produce
huge clouds of dust following blasting operations, the
Bhatti mines just outdie Delhi add to the pall that hangs
over Delhi. (See Table 4: Selected Atmosphere
Pollutants).
ACID
RAIN, OZONE LAYER & NUCLEAR FALLOUT
Related to
air pollution, but coming more into the purview of
atmospheric pollution are the issues of acid rain, the
ozone layer and nuclear fallout. These area not local
issues, but rather are global concerns.
The nitrogen oxides and sulphur oxide which are spewed
out into the air by industries, vehicles and thermal
power stations are transformed into nitric acid and
sulphuric acid and get washed down by rain. This falls as
deadly showers and destroy the natural life in the
forests and lakes. Acidity kills off fish, bacteria and
algae, and the acquatic ecosywtems collapses into
sterility leaving a crystal clear but ultimately dead
lake . Acidification fo the soil changes its biology and
chemistry " Acidified soil can absorb cadmium more
easily. Swedish cultivatged plants with high cadmium
levels pose a serious threat to human beings and animals.
Unfortunately acid rain does not remain a local problem.
For instance, the polluted air over London was varried by
the winds to other countries, some even thousands of
miles away and English pollution descended on sweden as
acid rain.
Another problem of intenational significance is the
destruction of the ozone layer, around the earth. This is
our shield against solar radiation. Gases
(chlorofluorocarbons or CFCs) used in spray cans, fluids
in refrigerators and many of the packaging material of
processed foods destroy the ozone layer. we aren now
putting these gases into the atmosphere 6 times faster
than nature can remove them. This descrution of the ozone
layer will result in : Increased skin cancer, cataracts
and other diseases; the blighting of food crops and
harming of animals and the upsetting of the worlds
climate and life support system.
Nuclear Fallout : Indirect or residual radiation is what
we refer to as fallout. Whereas direct radiation lasts a
few seconds, at most fallour can be lethal for hours,
days or even yeas. The particles and waves given off in
an atomic explosion cause radiation disease. They enter
the human body like X rays, penetrating cell walls and
damaging or destroying tissues. A nuclear explosion gives
off both direct and indirect radiation. In the first few
seconda the bomb produces direct radiation, which kills
anyone close to it by destroying brain and nerve tissue.
Fallout is produced when the radiation from a nuclear
explosion irradiates the material pulverized by the
bombs blast. This debris is drfawn up into the stem
of the mushroom cloud. the heavier material falls to
earth near the blast site. smaller, dustlike particles
are carried high into the air and picked up by prevailing
winds which may take them hundreds of miles. When fallour
drops to earth, its radiation has the same effect as
direct radiation. It damages cells and causes sickness
and death. Since radioactivity is invisible, tasteless
and odorless, people hundreds of miles from an explosion
may not realise thta the air they are breathing, the food
they are eating, or the water they are drinking has been
contaminated and can kill or injure them. Even where
immediate illness does not occur, radiation can cause
cancer and future genetic problems. Leukemia and other
cancers crop up years after exposure. japanese people
exposed to the bomb, for example, developed by the
mid-1950s a leukemia death rate thirty times higher than
the rest of Japan. Scientists have established a direct
correlation between exposure to nuclear radiation and the
incidence of cancer of the thyroid, breast, lung and
salivary glands. A US Government study estimated that
cancer deaths in the millions could be expected during
the forty yeas following a large nuclear attack, even if
that attack avoided targets in population centres, the
same study estimated that, in addition to cancer, a large
nuclear exchange would cause up to six million natural
abortions. It would also cause as many as thirty six
million "genetic effects" - for example,
mutations resulting in deformed babies and increased
genetic diseases - throughout the world.
Fallout comes not only from nuclear war explosions, but
also from the testing of nuclear weapons all over the
world. Not only do we face this insurmountable problem of
a possible nuclear war holocaust, but also the effects of
nuclear power plants. Fresh in everyones mind is
the chernobyl disaster. Otehr such accidents are real
part of this dangerous technology. Safety systems are not
safe. Human error cannot be controlled. Ageing nuclear
plants show signs of deterioration.
TABLE 4
| POLLUTANT |
PRINCIPAL HUMAN SOURCES |
| CARBON DIOXIDE |
Fuel combustion for heating,
transport, energy production. |
| CARBON DIOXIDE |
Incomplete fueld combustion (as in
motor vehicles). |
| SULPHUR DIOXIDE |
Burning of sulpher - containing
fuels like coal and oil. |
| SUSPENDED PARTICULATE MATTER |
Smoke from domestic, industrial and
vehicular sources. |
| OXIDES OF NITROGEN |
Fuel combustion in motor vehicles
and furnaces. forest fires. |
| VOLATILE HYDROCARBONS |
Partials combustion of carbonaceous
fueld, industrial processes, disposal of solid
wastes. |
| OXIDANTS AND OZONE |
Emissions from motor vehicles.
Photochemical reactions of nitrogen oxides and
reactive hydrocarbons. |
| SELECTED ATMOSPHERE POLLUTANTS |
| EFFECTS |
REMARKS |
| No direct effect on people. Over
time, may lead to increase in earths
temperature |
Normal constituent of atmosphere.
essential to plant life. |
| Deprives tissues of oxygen with
cardio respiraory diseases more sensitive. |
Construction of natural sources
small. Smoking more significant for humans than
exposure to traffic. |
| Combined with smoke, increase risk
and effects respiratory diseases. Causes
suffocation, irriration of throat and eyes.
Combines with atmospheric water vapour to produce
acid rain. Reduce crop yields. Leads to
acidification of lakes and soils. corrodes
buildings. |
|
| Possible toxic effects depend on
specific composition. Aggravates effects of
sulphur dioxide. Reduces sunlight and visibility.
Incrases corrosion. |
Chemically, a most diverse group of
substances. Natural sources include dust-storms ,
volcanic eruptions and sea-spray. |
| Possible increase in acute
respiratory infections and bronchitis morbidity
in children. Produces brown haze in city air.
Causes corrosion. |
Nitrogen oxide and nitrogen dioxide
are the two components. |
| React with other pollutants to
produce eye irritants (acrolein, aldehydes).
Ethylene is harmful to plaints. Aerosol particles
reduce visibility. May produce unpleasnat odours. |
|
| Cause eye irritation and impaired
pulmonary function in diseased persons. Corrode
materials and reduce visibility. Ozone is one of
the most damaging pollutants for plants. |
Mainly derivative : products of
atmospheric reactions between other pollutants.
Ozone is a natural and essential constituent of
the upper atmosphere. |
And nuclear waste from
power plants cannot be safely disposed of. See the box
for dangers of dumping it in seas and rivers.
We must study the structures where lethal pollutants can
be hidden and isolated for long periods - even up to
500,000 years and not so easily trust the present wholly
inadequate nuclear waste disposal practices:
"The present strategy of nuclear waste disposal is
concentration and confinement (Morgan 1976b). The
Atomic Energy Commission (US) report in 1972 stipulates
that the high level radioactive waste be solidified and
transferred to a respiratory owned by the government
(Karam 1976). A repository is supposed to be completely
isolated from the biosphere so that the pollutants cannot
percolate into any food chain. Further it is supposed to
be permanent storage facility, so that once the
pollutants are deposited there, no more surveillance
should be needed. According to one estimate soon about
1000 acres of land per year would be needed to bury
radioactive pollutants (Karam 1976).
It was proposed in 1971 by the Committee on Atomic Energy
(US) that the radioactive waste be buried in salt mines
near Lyon, Kansas. The Atomic Energy Commission was to
buy 200 acres of exhausted salt mines plus 800 acres of
adjacent salt formations. Thus the scale of the problem
is utterly underestimated. AEC regarded salt to be the
most economical encasement for nuclear waste. It believed
that as the tempertaure rises due to radioactivity, the
sale would melt and fill the existing and prospective
cracks in the surrounding rocks, providing good
isolation. But the U.S. Geological Survey has criticised
these cconclusions (Hicks 1975). They have argued that
all the boreholes in that area cannot be satisfactorily
plugged, that subsurface water has been leaking, into the
salt formations in that area, that the AEC model
considered rock sections to be compounded of sand and
shale as against laminated salt and shale which is the
structure, that the compound effect of subsisdence, heat
flow, thermal expansion etc. could break the seal of rock
above, facilitating the surface and subsurface water to
leak (Hicks 1975).
Activists from several States in India have taken the
lead in efforts to make India non-nuclear. Kakrapur, in
Sough Gujarat, is the site of two 235 MW reactors under
construction. The construction began in 1980 and at
present the authorities expect the reactors to become
critical sometime in 1991. A local agitation of somewhat
sporadic character has been going on since 1985 opposing
the construction of the reactors. Similar movements in
Karnataka against Kaiga and in Tamil Nadu, Kerala and UP
have gained ground especially during the period 1986-89.
Noise Pollution : The different effects of high level
noise, have been studied. Auditory fatigue, impairment of
hearing acuity, and deafness are known to be some
specific auditory responses.
Non specific physiological responses include the effect
on the cardiovascular and respiratory systems. Changes in
the galvanic skin responses and blood and other body
fluids, e.g. hypokalaemia (abnormally low potassium
levels in the blood which may lead to neuromuscular and
renal disorders and electro-cardiographic abnormalities)
hypo and hyper-glycaemia have also been reported.
Noise effects sleep and work performances, causes
annoyance, mental tension and irritation leading to
emotional disturbances at home and at work. See the Box
on noise pollution and Table 5.
ATMOSPHERIC POLLUTION DUE TO
PSYCHOLOGICAL FACTORS
While discussing pollution
of the atmosphere, an important, but not often discussed
point, in our opinion, is the tnagible pollution caused
due to mental tensions of persons. Many of us often have
had the experience of feeling uneasy and tense in the
presence of certain persons. We have not known how to
rationally and logically explain this feeling. Further
interaction with those persons reveals their tensions,
depression, anxieties, unhappiness. Even without verbal
expression, their feelings are projected into the
atmosphere. The vibrations that emanate from
these persons indirectly increase the tension of those
with whom they come in contact.
Table
5 : Sound Levels of some noise sources found in different
environments.
Overall
levels in dB2
|
Indutrial and military
|
Community (outdoor)
|
Home (indoor)
|
140
|
painfully loud |
Carrier deck jet operation (140 dB)
Oxygen torch
(126dB)
|
|
|
130
|
|
Pneumatic clipper (122 dB) |
|
|
120
|
Uncomfortably loud |
Pavement breaker (115 dB) Textile loom (112 dB)
Cut off saw (106
dB)
|
|
Discotheque (120 dB) |
110
|
|
Farm tractor (103 dB) Newspaper press (101 dB)
|
jet aircraft flyover at 300 m (110 dB)
Power mower (103
dB)
|
|
100
|
Very loud |
Bench Lathe (95 dB) Milling machine (90 dB)
|
Excavation rock drill at 15 m (100 dB)
Motorcycle at 8 m
(96 dB)
|
Food blender (90 dB) |
90
|
|
Bed press 86 dB) Key-punch machine (82 dB)
|
Heavy truck at 15 m (93dB) Train whistle at 150m
(90dB)
|
Alarm clock (85 dB) Garbage disposal (83dB)
Clothes washer
(82dB)
|
80
|
Moderately loud |
|
Passenger car 100 km/h at 15 m (76 DB)
Church bells at
50m (70dB)
Light traffic at
30m (66dB)
|
Living room music (78dB) Dishwater (76 dB)
TV-Audio (73 dB)
Vacuum Cleaner (72
dB)
|
70
|
|
|
|
Toilet flush (65 dB) Cnversation (60 dB)
|
50
|
Quiet |
|
|
|
40
|
|
|
|
|
30
|
Very quiet |
|
|
|
20
|
|
|
|
|
10
|
Just audible |
|
|
|
0
|
Threshold of hearing |
|
|
|
| Source : 1. After Cohen. A. Sound
and Vibration National Library of Medicine
(Bethesda, MD. 1969), Quoted in Health Hazards of
Human Environment, WHO (Geneva, 1972) 2. Reference sound pressure
level : 0.0002 microbar.
|
Nuclear
Seas
There are
approximately 900 nuclear reactors in the world, with 374
in operation on land and over 500 at sea, powering USA,
UK, French, Soviet, Chinese, and now Indian vessels.
Reactors at sea operate without any regulations covering
radioactive discharges or accident reporting. They are a
continuous moving source of radioactive pollution, and
frequently break international law by travelling
submerged within territorial waters of other countries.
The 500+ reactors at sea frequently operate in hazardous
conditions and have regularly run around, sunk, suffered
fires, floods, mechanical, breakdowns, and have collided
with fishing boats, tankers and other warships. In the
past ten years there have been over 200 accidents with
Soviet subs alone, including the sinking of 3 subs
complete with reactors and warheads. Two US subs have
also sunk and between 1965 and 1985, the US navy has had
628 incidents and two accidents
involving nuclear weapons. It is impossible to calculate
the risk of a major nuclear accident at sea because of
the secrecy surrounding their operation and records.
Ireland is in the frontline of much nuclear activity with
the Irish sea containing upto 15% of the US nuclear
arsenal at any time and Warsaw Pact vessels on
surveillance at either end. Both NATO and Warsaw Pact
vessels nuclear submarines travel underwater within
Irelands three mile limit, staying within the warm
coastal waters to avoid infrared detection by satellite.
Nuclea subs can also carry up to 160 nuclear warheads.
Thus these vessels not only pose a threat in themselves
but they are also a target in the event of war and have
the capacity to initiate a nuclear war.
Since the oceans are an essential part of life and
provide protein for much the worlds population, it
is imperative that the non-nuclear communities of the
world unite against the continuation of the unacceptable
contamination and threat to the seas. Earthwatch, Irish
CND and Greenpeace - UK have plans to set up the campaign
to denuclearise the Irish Sea, as part of the recently
launched Greenpeace International Campaign to Disarm the
Seas.
(note : This ought to be read in conjunction with
newsreports about Indias acquisition on lease of a
Soviet nuclear powered submarine which would give the
Indian navy "deep strike" capability. Those
newsreports should be read together with other
newsreports about Indias sudden desire
to buy two nuclear power plants from the Russians and
giving the go-bye to the much-flaunted self reliance in
the nuclear field.
Source : ANUMUKTI Vol. 1 No.4. February 1988, p. 6
(Vedchi, Gujarat)
Scientists have discovered that all living organisms have
their own fields of energy or auras. The energy fields of
tense, angry persons are negative, and they affect the
environment negatively.
NOISE POLLUTION
A survey carried out in
1970 in parts of Delhi, by the National Physical
Laboratory revealed that noise levels in the city were
far above the maximum limits suggested by experts. As
against 45 decibels (dB) recommended by Swiss experts,
peak levels in excess of 100 dB were recorded in parts of
Delhi: Daryagunj was found to have night time levels of
80 dB and the area around the All India Institute of
Medical Sciences had 59 dB. A noise level study conducted
by SOCLEEN in crowded localities of Bombay in 1980, found
noise levels upto 97 dB during the annual Ganpati
festival. Loudspeakers are commonly used at festivals and
ceremonies. Factories, automobiles, trains and
aeroplanes, religious and social ceremonies are also
sources of noise pollution in India. Prolonged exposure
to noise levels above 90 dB can cause permanent deafness.
Factory workers have shown neurological, digestive and
metabolic disordes under such conditions.
Source : FRCH Report, 1987. p.204.
Some persons on the other
hand, who are at peace, with themselves and derive a joy
from living have around them a positive aura. Their
energy fields are strong and positive and they give out
peaceful or healing vibes.
With our society becoming more and more consumerist,
grasping and competitive, peoples tensions are at
higher levels than ever before. This is rapidly
increasing the atmospheric pollution due to "bad
vibes". Tensions escalate until finally there is an
outbreak of violence. What seems to be required is :
- That we ned to
rethink our values - do we need to fall into the
trap of the competitive rat race with its
meaningless tensions and emptiness? and
emptiness? and
- To cope with the
existing tensions around us by practising stress
management, following techniques and methods that
will help us to balance ourselves and find our
centre of quiet deep within.
(D) WORK, WORK ENVIRONMENT AND HEALTH
CHANGES
This section explores the
health problems connected with certain types of work, the
environment in which the work is done and the working
conditions. The major types of environmental stress for
the worker are : chemical agents, physical agents and
conditions, biological agents and conditions and
psychological factors.
These may act either singly or in combination. The
environmental and human factors may interact to prodcue
accidents. Occupational disease and injuries result from
specific exposures at work. In addition, work exposures
may aggravate certain illness or be a factor of varying
importance in causing diseases of multiple etiology. The
point to be noted is that industry - the decision makers
and management - does not accept responsibility for the
occupational hazards that affect the workers. Minimum
safety standards are seldom adhered to, personnel
policies seldom contain provisions for leave for
occupation induced illnesses. Laws providing for
compensation in cases of mishaps and accidents are seldom
complied with. Just as iatrogenesis is a condition of
sickness induced by the healer or doctor,
ergogenesis is a condition of ill-health
induced by the work! See Table 6 for Occupation Factors
affecting Health of Unorganized Women and
Recommendations. This Table summarises the major
occupational health problems of women workers in the
informal sector and the recommendations thereof suggested
in the report of the National Commission of Self-Employed
Women and in the Informal Sector (1988).
CHEMICAL
AGENTS
Dusts from
work places - mines, quarries, fertilizer plants, textile
plants and other industries - can cause respiratory
diseases - allergy, lung cancer, tuberculosis, etc.
Poisoning can occur after inhaling toxic dusts.
Dermatoses and other skin problems can occur on repeated
contact with skin irritants.
Silicosis is caused by breathing in free silica or
silicon dioxide. This disease occurs or is found in
people working in quartz mines, steel works and iron
foundries, in ceramics and glass industries. Silicosis
was first reported in india from Kolar Gold Fields in
1947.
Slate Workers Of Mandsaur
"An ICMR study of 605
workers in the slate pencil factories of mandsaur in
Madhya Pradesh pointed out that 80 percent of workers
were below the age of 35 years, and very few worked or
survived beyond 10 years. The prevalence was highest
among the cutters and increased with the duration of
exposure. 52 percent of the workers had dyspnea and 51
per cent showed positive radiological evidence of
silicosis. In Mandsaur, Multanpur and Pipalimandi
villages, there was hardly a man over 40 years, and there
was not a single house without a widow. An estimated 5000
workers are faced with early death as there is no
effective treatment nor have preventive measures been
undertaken by the industry, like dust control, and
regular medical examination."
Source : Institute of Occupation Health. Health
hazards Evaluation in Slate Pencil Manufacturing
Industries at mandsaur (M.P.) (Ahmedabad 1981). Quoted in
FRCH report 1987 p.205.
Asbestiosis is the
result of working in asbestos mines and wherever asbestos
or asbestos products are used, for instance, where
asbestos-cement roofing and pipes are made, in the
manufacture of fireproof material such as asbestos
chothes or break linings for motor vehicles, when
asbestos fibres deposited in the lungs cause pulmonary
fibrosis leading to respiratory insufficiency and death,
in more severe cases, it causes cancer of the lungs and
the gastro intestinal tract called mesothelioma. Most of
the asbestos used in India is imported - only about 20
per cent is mined in india. The big asbestos using units
- there are about 20 of them - have links with
multinationals.
"Conditions at indias largest mine, the
Birla-owned Hyderabad Asbestos Cement Products in Roro,
Bihar, are truly primitive. Some 1,500 tribals are
employed in the mines, where they have to crouch for
hours in dingy underground tunnels. If such exposure
hasnt proved lethal, the fine dust particles are
dumped in the open, exposing 50 tribal villages in the
neighbourhood to contamination. needless to say tje
tribals of this area, known as Kolhan- whcih according to
a government statement is supposed to be fighting for
independence from Bihar - arent
provided uniforms, as employers are compelled to do in
other countries. A joint study by the International
Labour Organisation (ILO) and assistant director general
of mines in 1978, on these workers conditions has
itself been gathering dust.
Pneumoconiosis, or
disease of the black lung is caused by coal
dust in the mines. With mechanisation, the size of the
dust that is produced is much smaller than the produced
by hand dirven tools - the smaller dust particles are
most harmful.
The conditions in the coal mines are pitiable. In
Jhagarakhand (M.P.) new sections of mines are opened up
without bothering to ventilate them. Most exhaust fans do
not work. Managers try to dupte mining inspectors when
they come on their visits - fences are put up around
these sections to give the impression that no work is in
progress. Medical facilities are minimal.
Byssinosis : is caused by deposits of cotton fibres in
the lungs. It generally affects those who have been
working for more than 10 years. The disease is
progressive and in time causes permanent breathlessness
and shortens a victims life span. A varient of this
disease, bagassosis, occurs when sugar mill workers
inhale the dust from bagasse or cane waste. Bagasse, the
fibre which remains after the sugarcane juice is
extracted, is used for making board and paper. During the
drying of the bagasse fibre, fungi grow over it. When the
bagasse is shredded to make bales, the workers are
exposed to clouds of the dangerous dust, which has been
known to kill.
Byssinosis can be prevented by redesigning work places
and by medical treatment. Dust can be controlled by
replacing old machines with new, installing exhaust
systems and providing respirators to workers.
The deadly dusts affect the women workers far more than
the men. In addition, to the usual chest related
diseases, women begin to suffer from gynaecological
problems too. The example of women working in the tobacco
processing industry can be mentioned here. In Nipani,
maharashtra bout 4000 women are working in tobacco sheds.
Apart from the chest diseases, the tobacco dust affects
their menstrual cycles as well as the lactation in your
mothers.
Chemical Agents :
Manufacturing pesticides and insecticides pose serious
hazards due to the frequent leaks of toxic chemicals and
danger from accidents during storage and transport. The
case of Union Carbide in Bhopal is a classic example
where over 2,000 persons perished and many more have been
affected for life.
Some startling facts about
chemicals are given in the boxes below.
| HAZAROUS
PRODUCTS |
- For the past
40 years, nearly 10,000 chemicals have
been synthesized, worldwide, every year.
We know nothing about the toxicity of 80
per cent of the chemicals in use.
|
|
India uses
nearly 100,000 tonnes of pesticides
annually. At least 70 percent of this
tonnage is contributed to by pesticides
banned or severely restructed in Western
nations.
A WHO study,
which analysed food samples across India,
found that 50 per cent were contaminated
with pesticide residues, with 30 per cent
exceeding permissible limites.
Pesticide use
in India has multiplied 20 times between
1960 And 1980.
|
ILLS OF PESTICIDES
. .. A survey by
the Indian Institute of Management, Ahmedabad, of
workers spraying pesticides and engaged in
dusting operations in five Gujarat districts;
revealed: "None of the labourers were
provided with masks to prevent the inhalation of
toxic chemicals. Goggles to protect the eyes were
also not available. Only 50 per cent of the
workers took the precaution of covering their
nose and mouth with a cloth. Besides 20 per cent
did not wash their hands after completing the
operations, and of those who did, the percentage
of workers not using soap was 64%, though washing
with water alone is utterly inadequate."
|
| Source
: CSE Citizens Reort 1984-85.p.246 |
Apart from dramatic
disasters like the Union Carbide accident at Bhopal,
there are other commoner chemical related disease.
Occupational dermatitis is an example. Workers in
chemical plating factories and press workers are
susceptible to this. It inflames the skin which becomes
swollen and itchy. But workes suffering from this
uncomfortable disease are not entitled to medical
benefits and sick leave nor any compensation. under the
Workmens Compensation Act, they must fend for
themselves, and must return to work as soon as possible,
or face being sacked!
Table 3 on certain chemicals, their uses and their
hazards shows the multiplicity of adverse effects of only
a small selection of these chemicals.
PHYSICAL
AGENTS AND CONDITIONS:
Physical
Agents and Conditions : These include the effect of
lighting, radiation, vibration, humidity, heat and cold,
noise and abnormal air pressure. The nature of work like
lifting heavy loads is also discussed in this section.
Dim lights associated with high visual demands lead to
eye strain and fatigue. The partial darkness of coal
mines in India for eight hours each day over a long
period of time result in acute and chronic effects -
headaches, eye pain, lachrymation and congestion around
the cornea, are some characteristic conditions found
among coal miners. Glare, on the other hand, also leads
to discomfort and visual fatigue. Increased annoyance
levels are found among persons working in rooms with a
bright glare.
Ultraviolet radiation emitted during welding can damage
the eyese and skin. Infra-red rays - foundry workers
handling molten metals are exposed to these, can cause
eye damage besides increasing body heat. Exposures to
high levels of ionising radiation - as in nuclear thermal
plants, nuclear reactors, heavy water complexes - can
cause severe burns, blood dyscrasias, gastro intestinal
symptoms, cataracts, cancer and gene mutations. The
severest criticism of nuclear energy is it sirreversible
radiation effects on all living organisms.
Continued exposure to vibrations as in mines, quarries,
foundries and machine inustry, cause the fine blood
vessels of the fingers to become susceptible to spasms
and also cause injuries to the joints of hands and elbows
and shoulders. Working in environments with high
temperatures results in apathy, lassitude and
seleeplessness and adversely affects alertness and
reaction times. psychomotor coordination is also
affected. Exposure to low temperatures over long period
of time on the other hand, lead to rheumatism and
bronchopulmonary diseases besides causing chilblains,
frostbite and erythrocyanosis (Coarsely mottled bluish
red discolouration on the legs and thigs, especially of
girls, thought to be a circulatory reaction to exposure
to cold.)
Noise is a pyschological and physical health hazard for
the worker employed in boiler making, aircrafts, motor
garage, blacksmithy, blasting rock drilling metal working
trades and many others. Textile mills are some of the
noisiest work places in the country.
Workers who lift heavy loads as on the docks, railway
stations and in many facotires are affected by disease of
bones and joints, strangulated hernias and varicose
veins.
Some of the occupational accidents that are caused can be
attributed to the physical conditions of work. For
instance, the number of accidents that occur during wheat
harvet time is because farm hands are working around the
clock. The threshers receive the power only at night, and
by then the workers are exhausted and their reflexes are
not what they ought to be. The wodk is done by unskilled
migrant workers, whose poverty compels them to work
almost aroung the clock in certain seasons. The farmers
too are anxious to finish threshing before the onset of
the monsoon; usually they rent the machine by the hour,
so time is of the essence. The workes try to bet their
drowsiness at night by using intozicants; this compounds
the problem.
BIOLOGICAL
AGENTS AND CONDITIONS
Doctors,
nurses, laboratory workers, tanners, vetgerinarians, zoo
and circus attendants, agricultural and municipal woerks
are the ones who get diseases from biolgical agents. The
biological agents may be viruses, rickettsiae, bacteria
and parasites. Some of these diseases are anthrax (from
wool sorting and handling of infected hides), brucellosis
(from contact with infected animals), tetanus (from
infected wounds).
PSYCHOSOCIAL
FACTORS
A high degree
of mechanisation in the work, or working in isolation as
with a computer, or on night shifts, produces
psychosomatic problems. Mechanisation leads to repetitive
work and thence to reduced job satisfaction. Night work
and the change of working hours from one shift to another
subject workers to certain stresses. Such stresses affect
the nervous system, increasing the frequency of peptic
ulcer and of nervous symptoms, like fatigue, nervousness,
irritation and insomania.
"Behavi |