Bhopal gas tragidy

1. Bhopal Gas Tragedy R.G.Brajesh 2012402004

2. Amongst the worst Industrial Disasters of its time. Occurrence: 3rd December 1984. Place of occurrence: Bhopal, Madhya Pradesh, India. Company: Union Carbide Corporation. Chemical: Methyl Isocyanate (42 tons). Series of faulty equipments and neglection. Three thousand people died within 3hours of exposure and within 12 hours it dissipated to the whole country.

3. Among the 500,000 people exposed to the gas, 25,000 have died till date and 120,000 continue to suffer devastating health effects as a result of their exposure. People were dying after 27 years from that disaster

4. Bhopal Scenario Union Carbide Corporation

5. Union Carbide Corporation Started in 1935 in bhopal Phosgene, Monomethlyamine, Methyl Isocyanate (MIC) and the pesticide Carbaryl, also known as Sevin. Taken over by DOW Chemicals in 2001. Dr. Paul Shrivastava, an Associate Professor of Business in New York University conducted studies that revealed that Bhopal was neither an isolated incident nor the first of its kind in the corporation. There had been many accidents of similar nature in UCC's American plants prior to the Bhopal accident. He found that 28 major MIC leaks had occurred in UCCs West Virginia plant during the five years preceding the Bhopal incident, the last one occurring only a month before. The Bhopal plant experienced six accidents between 1981 and 1984, at least three of which involved MIC or phosgene.

6. Toxic Materials in Soil and Water

7. Gas Vent Scrubber Gas Vent Scrubber Stack

8. Who is responsible There are three main barriers which probably may stop the massive killing. Vent gas scrubber Fly tower Water spraying system There are certain neglecting parameters which triggers the reaction. 42 tones of MIC was stored and only 30 tones was recomended emergency pressure release valve was not working Faulty pressure gauge Rusted iron pipelines Iron slip which was barrier for separating water was removed Inert N2 which was supposed to be there in empty part of the tank was missing. Out of 3 storage tank one must keep empty for emergency and backup. After the disaster 35 tones more MIC was there which may leads to Bhopal-2

9. Effects on Human Health Respiratory Disorders Irritation to the lungs, causing coughing and/or shortness of breathing. Higher exposure caused build up of fluids (pulmonary edema). Caused Asthama. Cancer Hazard Caused mutation (genetic changes). It caused cancer. Reproductive Hazard . It may damage the growing fetus.May also affect fertility in men and women. Traces of many toxins were found in the Brest Milk of mothers and were inturn transmitted to the recepient babies.

10. Animal Slaughter

11. Methyl Isocyanate Physical and Chemical Characteristics Methyl Isocyanate (C2H3NO) Liquid form Volatile Colourless Strong, sharp odour Molecular weight: 57.05 daltons Boiling point (760 mm Hg): 102F (39.1C) Freezing point: -49F Water solubility: Reactive 6.7% at 68F (20C) Flammability: Highly flammable It combines with water and clogged in tiny space of lungs and make breathing impossible. Lungs became swollen followed with vomiting coughing and rushing for breath.

12. Chemicals Dumped by Union Carbide in Bhopal S.No Chemical Amount Use in factory Nature of original pollution 1 Methylene Chloride 100 MT Solvent Air 2 Methanol 50 MT Solvent Air 3 Ortho-idichlorobenzene 500 MT Solvent Air, Water, Soil 4 Carbon tetrachloride 500 MT Solvent Air 5 Chloroform 300 MT Solvent Air 6 Tri methylamine 50 MT Catalyst Air 7 Chloro benzyl chloride 10 MT Ingredient Air, Water, Soil 8 Mono chloro toluene 10 MT Ingredient Air, Water, Soil 9 Toluene 20 MT Ingredient Air, Water, Soil 10 Aldicarb 2 MT Product Air, Water, Soil 11 Carbaryl 50 MT Product Air, Water, Soil 12 Benzene Hexachloride 5 MT Ingredient Air, Water, Soil 13 Mercury 1 MT 14 Mono methyl amine 25 MT Ingredient Air 15 Chlorine 20 MT Ingredient Air 16 Phosgene 5 MT Ingredient Air 17 Hydro chloric acid 50 MT Ingredient Air, Soil 18 Chloro sulphonic acid 50 MT Ingredient Air, Soil 19 Alpha Naphthol * 50 MT Ingredient Air, Soil 20 Napthalin 50 MT Ingredient Air 21 Chemical waste Tar 50 MT Waste Water, Soil 22 Methyl Isocyanate 5 MT Ingredient Air, Water, Soil Water, Soil

13. Haphazard dumping of Hazardous Material

14. Toxic Materials in Soil and Water Benzene, oxybis 7, 890 Dichlorobenzenes 87,500 Polynuclear Aromatic Hydrocarbons 2,340 Phthalates 9,940 Trichlorobenzenes 9,410 Trimethyl Trianzintrione 24,470 1-Napthalenol 59,090 Units in parts per billion (ppb) Additionally, Dichlorobenzenes and Trichlorobenzenes were found in the soil and water samples.

15. Toxic Materials in Soil and Water Lead, Nickel, Copper, Chromium, Hexachlorocyclohexane and chlorobenzenes were found in soil samples. Mercury was found to be between 20,000 to 6,000,000 times the standard level in soil.

16. Chemical, biotech alternative (suggested solution) Alpha Napthol on carbonyl group addition followed by reaction with methyl amine would eventually gives carbaryl. This process does not generate or require handling the of Phosgene. This process does not require storage of MIC. Use of bio pesticide (tricoderma, entamopathogenic fungi and viruses) Generate insect resistance plant (B.thuringiensis)s.

17. Compensation and Legal Aspects Compensation of $470 million ($500 per dead). Twenty years of passiveness. Case was reviewed and put up in American Court. India demanded 2000$ per dead which was never given Union carbide and DOW corporation were announced responcible for the mass destruction and company demanded no criminal charges in future in compansation of $500 per dead.

18. 25,000 KILLED 120,000 SEVERELY AFFECTED And you thought only weapons could cause Mass Destruction.!!!!!

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