The case study is detailed in bringing out the cause and effect of the disaster, the aftermath and the impact.

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2. An overview:
 Background
 About Union Carbide India Limited (UCIL)
 The Leakage
 The Factors
 Aftermath of the leakage
 Health Effects
 Rehabilitations
 Response
 Legal Actions
 Study reveals
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3. The Union Carbide India Limited (UCIL) factory was built in 1969 to
produce the pesticide ‘Sevin’ using Methyl Iso cyanate (MIC). An MIC
production plant was added in 1979.
2 – 3 December 1984, a very tragic day in the history of Bhopal and also
India. The leakage of 40 metric tons of Methyl Iso Cyanate from the storage
tank into the atmosphere in just about 45 to 60 minutes, and the gases were
blown in south – eastern direction of Bhopal.
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4. About Union Carbide India Limited:
In the 1970s, the Indian government initiated policies to encourage foreign
companies to invest in local industry. Union Carbide Corporation (UCC) was
asked to build a plant for the manufacture of Sevin , a pesticide commonly used
throughout Asia. As part of the deal, India's government insisted that a
significant percentage of the investment come from local shareholder. UCC built
the plant in Bhopal named Union Carbide India Limited because of its central
location and access to transport infrastructure. The specific site within the city
was zoned for light industrial and commercial use, not for hazardous industry.
The plant was initially approved only for formulation of pesticides from
component chemicals, such as MIC imported from the parent company, in
relatively small quantities. However, pressure from competition in the chemical
industry led UCIL to implement "backward integration". This was inherently a
more sophisticated and hazardous process. Attempts to reduce expenses,
affected the factory's employees and their conditions. Promotions were halted ,
seriously affecting employee to move somewhere else. By 1984, only six of the
original twelve operators were working and the number of supervisor were also
less as compared to earlier. This issues between the workers and the management
lead to poor maintenance and working condition. It can be summarized that a
poor management was a leading factor into the disaster as it created a unfriendly
working environment.
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5. The Leakage:
In November 1984, most of the safety systems were not functioning and many
valves and lines were in poor condition. Tank containing 42 tons of MIC, was
much more than what safety rules allowed. During the nights of 2–3
December, a large amount of water is claimed to have entered the tank. As a
result reaction started, which was accelerated by contaminants, high
temperatures and other factors. The reaction generated a major increase in the
temperature inside the tank to over 200 °C (400 °F). This forced the emergency
venting of pressure from the MIC holding tank, releasing a large volume of
toxic gases. The reaction was sped up by the presence of iron from corroding
non-stainless steel pipelines.
Owing of this, and the poor maintenance, the workers consider that water
might have accidentally entered the tank. Union Carbide Corporation (UCC)
maintains that a "disgruntled worker" deliberately connected a hose to a
pressure gauge connection.
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6. Factors leading to the magnitude of gas leak includes:
 Storing MIC in large tanks and filling beyond recommended levels.
 Failure of several safety systems due to poor maintenance.
 Safety systems being switched off to save money – including the MIC
tank refrigeration system which could have mitigated the disaster.
 The problem was made worse by the mushrooming of slums in the
vicinity of the plant, non-existent catastrophe plans.
 Use of more dangerous pesticides manufacturing method, large scale
MIC storage, plant location close to a densely populated area.
 Dependence on manual operation.
 Plant management deficiencies were also identified- lack of skilled
operators, reduction of safety management, insufficient maintenance
and inadequate emergency
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7. Numerous incidents that fore-warned of an oncoming disaster:
 In 1981, a worker got splashed with phosgene. In panic he ripped off his
mask, thus inhaling a large amount of phosgene gas. He died 72 hours
later.
 In January 1982, there was a phosgene leak, 24 workers were exposed and
had to be admitted to hospital. Enquiry reveals that non of them had
been ordered to wear protective masks.
 In february 1982, an MIC leak affected 18 workers.
 In august 1982, a chemical engineer came into contact with liquid MIC ,
resulting in burns over 30% of his body.
 During 1983 & 1984 , leaks of following substances regularly too place in
the plant: MIC, Chlorine, Monomethylamine , Phosgene & Carbon
tetrachloride and sometimes in combination.
 Reports issued months before the incident, by UCC engineers warned of
the possibility of incident almost identical to that what happened in
Bhopal. The reports never reached UCC’s senior management
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8. Aftermath of the Leakage:
 Medical staff were unprepared for the thousands of casualties.
 Doctors in the hospitals were not informed of the proper method of
treatment for MIC. They were told simply to give medicine of cough
and eye drops to the patients.
 Within a few days trees in the vicinity became barren.
 2000 bloated animal carcasses had to be disposed.
 The complaints of lack of information/ misinformation were widespread.
The UCIL’s medical officers & Local medical practitioners did not have
proper idea about properties of these gases and its related treatment.
 Formal statements were announced that air, water, vegetation and
foodstuffs were safe within the city. At the same time, people were
informed that poultry was unaffected but were warned not to consume
fish.
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9. Health Effects
Short Term Health Effects:
The gas cloud was composed mainly of materials denser than the surrounding
air, stayed close to the ground and spread outwards through the surrounding
community.
The initial effects of exposure were:
 coughing;
 vomiting;
severe eye irritation; and
a feeling of suffocation.
Long Term Health Effects:
An estimated 100,000 to 200,000 people have permanent injuries ranging from
symptoms like:
eye problems, respiratory difficulties, immune and neurological disorders,
cardiac failure secondary to lung injury, female reproductive difficulties and
birth defects among children born to affected women.
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10. Rehabilitation:
Economic rehabilitation
Occupational rehabilitation
Habitation rehabilitation
Healthcare rehabilitation
Environmental rehabilitation:
•When the factory was closed in 1985–1986, pipes, drums and tanks were sold. The
MIC and the Sevin plants are still there, as are storages of different residues
•The area around the plant was used as a dumping area for hazardous chemicals
•In order to provide safe drinking water to the population around the UCC factory,
there is a scheme for improvement of water supply
•In 2005, the state government invited Indian architects to enter their “concept for
development of a memorial complex for Bhopal gas tragedy victims at the site of
Union Carbide”
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11. Response:
Union Carbide states on its website that it put $2 million into the
Indian Prime Minister's immediate disaster relief fund on 11 December
1984.
 The corporation established the Employees' Bhopal Relief Fund in
February 1985, which raised more than $5 million for immediate relief.
According to Union Carbide, in August 1987, they made an
additional $4.6 million in humanitarian interim relief available
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12. Legal action against Union Carbide:
Legal proceedings involving UCC, the United States and Indian
governments, local Bhopal authorities, and the disaster victims
started immediately after the catastrophe.
Charges against Warren Anderson and others:
UCC Chairman, CEO Warren Anderson was arrested and
released on bail by the Madhya Pradesh Police in Bhopal on 7
December 1984. The arrest, which took place at the airport,
ensured Anderson would meet no harm by the Bhopal
community. Anderson was taken to UCC's house after which he
was released six hours later on $2,100 bail and flown out on a
government plane.
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13. Study reveals
Ongoing Contamination:
Chemicals abandoned at the plant continue to leak and pollute
the groundwater.
UCC's laboratory tests in 1989 revealed that soil and water samples collected
from near the factory were toxic to fish
In 2002, an inquiry found a number of toxins, including mercury, lead,
trichlorobenzene, dichloromethane and chloroform, in nursing women's
breast milk.
In 2009, the Centre for Science and Environment (CSE), a Delhi based
pollution monitoring lab, released test results showing pesticide groundwater
contamination up to three kms. from the factory.
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14. Death and physically effected:
 23000 (approx.) number of people died from the effects till end of
2004
8000(approx.) number of people died in the first 72 hours.
146 number of children died immediately after the gas leak.
331 number of children below 12 years born with congenital diseases
till 2009.
113 children's above 12 years with congenital diseases till 2009
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15. Amazing truth:
Five people found to be named after the tragedy
•Gasdevi
•Zeherlal
•Gasbano
•Gasu Pathan
•Gasmiya
References:
Internet (Wikipedia),People Tribute, journals,
Netphotograph.com.
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16. ……………thanking you,
Binoy Das Ashraf Uddin Ahmad
Dept. of Business Administration
Assam University
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