Bhopal disaster
Bhopal memorial for those killed and disabled by the 1984 toxic gas release The Bhopal disaster is the world's worst industrial catastrophe. It occurred on the night of December 23, 1984 at the Union Carbide India Limited (UCIL) pesticide plant in Bhopal, Madhya Pradesh, India. A leak of methyl isocyanate gas and other chemicals from the plant resulted in the exposure of hundreds of thousands of people. Estimates vary on the death toll. The official immediate death toll was 2,259 and the government of Madhya Pradesh has confirmed a total of 3,787 deaths related to the gas release.[1] Others estimate that 3,000 died within weeks and that another 8,000 have since died from gas-related diseases.[2][3] A government affidavit in 2006 stated the leak caused 558,125 injuries including 38,478 temporary partial and approximately 3,900 severely and permanently disabling injuries.[4] UCIL was the Indian subsidiary of Union Carbide Corporation (UCC). Indian Government controlled banks and the Indian public held 49.1 percent ownership share. In 1994, the Supreme Court of India allowed UCC to sell its 50.9 percent share. The Bhopal plant was sold to McLeod Russel (India) Ltd. UCC was purchased by Dow Chemical Company in 2001. Civil and criminal cases are pending in the United States District Court, Manhattan and the District Court of Bhopal, India, involving UCC, UCIL employees, and Warren Anderson, UCC CEO at the time of the disaster.[5][6] In June 2010, seven ex-employees, including the former UCIL chairman, were convicted in Bhopal of causing death by negligence and sentenced to two years imprisonment and a fine of about $2,000 each, the maximum punishment allowed by law. An eighth former employee was also convicted but died before judgment was passed.[7]
On 28th Feb 2011 the Supreme Court of India issued notice to the Union Carbide Corporation, Dow Chemicals and others on the Centres extra-ordinary petition seeking an additional compensation of Rs7,844 crore for the victims of 1984 Bhopal gas tragedy. Through its curative petition, the Central Government has requested Supreme Court to take a re-look at the entire evidence and enhance the compensation amount. The bench also decided to hear CBI's curative petition asking the court to restore the stringent charges of culpable homicide not amounting to murder against the accused in the criminal case.[8]
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[edit] Summary of background and causes
The UCIL factory was built in 1969 to produce the pesticide Sevin (UCC's brand name for carbaryl) using methyl isocyanate (MIC) as an intermediate. A MIC production plant was added in 1979.[9][10][11] During the night of December 23, 1984, water entered a tank containing 42 tons of MIC. The resulting exothermic reaction increased the temperature inside the tank to over 200 C (392 F) and raised the pressure. The tank vented releasing toxic gases into the atmosphere. The gases were blown by northwesterly winds over Bhopal. Theories differ as to how the water entered the tank. At the time, workers were cleaning out a clogged pipe with water about 400 feet from the tank. The operators assumed that owing to bad maintenance and leaking valves, it was possible for the water to leak into the tank.[12] However, this water entry route could not be reproduced.[13] UCC also maintains that this route was not possible, but instead alleges water was introduced directly into the tank as an act of sabotage by a disgruntled worker via a connection to a missing pressure gauge on the top of the tank. Early the next morning, a UCIL manager asked the instrument engineer to replace the gauge. UCIL's investigation team found no evidence of the necessary connection; however, the investigation was totally controlled by the government denying UCC investigators access to the tank or interviews with the operators.[14][15] The 1985 reports give a picture of what led to the disaster and how it developed, although they differ in details.[15][16][17] Factors leading to the magnitude of the gas leak include:
Storing MIC in large tanks and filling beyond recommended levels Poor maintenance after the plant ceased MIC production at the end of 1984 Failure of several safety systems (due to poor maintenance) Safety systems being switched off to save moneyincluding the MIC tank refrigeration system which could have mitigated the disaster severity
The problem was made worse by the mushrooming of slums in the vicinity of the plant, nonexistent catastrophe plans, and shortcomings in health care and socio-economic rehabilitation.[2][3][18]
[edit] Long term health effects
Victims of Bhopal disaster asking for Warren Anderson's extradition from the USA It is estimated 100,000 to 200,000 people have permanent injuries. Reported symptoms are 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.[3] The Indian Government and UCC deny permanent injuries were caused by MIC or the other gases.
