Bhopal_tragedy_ppt_final

Views:
 
Category: Entertainment
     
 

Presentation Description

bhopal tragedy

Comments

Presentation Transcript

PowerPoint Presentation:

Air pollution episodes

PowerPoint Presentation:

B hopal gas tragedy is considered as the worst industrial accident ever….

PowerPoint Presentation:

India in 1950’s

PowerPoint Presentation:

e

What exactly happened??:

What exactly happened?? Around 1 a.m. on Monday, the 3rd of December, 1984, in the city of Bhopal, Central India, a poisonous vapour burst from the tall stacks of the Union Carbide pesticide plant. This vapour was a highly toxic cloud of methyl isocyanate. 2,000 died immediately 300,000 were severely injured 7,000 animals were injured, of which about one thousand were killed.

The Affected Area:

The Affected Area Heavily affected areas

PowerPoint Presentation:

MIC – Methyl Isocyanate MMA - Methyl Methacrylate

The Possible Causes:

The Possible Causes A tank containing methyl Isocyanate (MIC) leaked. MIC is an extremely reactive chemical and is used in production of the insecticide carbaryl . The scientific reason for the accident was that water entered the tank where about 40 cubic meters of MIC was stored. When water and MIC mixed, an exothermic chemical reaction started, producing a lot of heat. As a result, the safety valve of the tank burst because of the increase in pressure. It is presumed that between 20 and 30 tonnes of MIC were released during the hour that the leak took place. The gas leaked from a 30 m high chimney and this height was not enough to reduce the effects of the discharge .

The Weather Support On The Process… :

The Weather Support On The Process… The high moisture content (aerosol) in the discharge when evaporating, gave rise to a heavy gas which rapidly sank to the ground. A weak wind which frequently changed direction, which in turn helped the gas to cover more area in a shorter period of time (about one hour). The weak wind and the weak vertical turbulence caused a slow dilution of gas and thus allowed the poisonous gas to spread over considerable distances.

Effects on Human Health:

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 Asthma. Cancer Hazard – Caused mutation (genetic changes). It caused cancer. Reproductive Hazard – Association between exposure to Methyl Isocyanate and miscarriages. It may damage the growing foetus. May also affect fertility in men and women. Traces of many toxins were found in the Brest Milk of mothers and were in turn transmitted to the recipient babies.

Post-mortem Reports:

Post-mortem Reports Cerebral oedema Massive pulmonary oedema Massive destruction of lung tissues Massive Coagulation of blood leaving parts of circulatory system drained of blood Damaged liver and kidneys

Societal Effects:

Societal Effects No or little earnings reduced self esteem Heavy loans to pay for medicines Children future destroyed Men unmarried since cannot earn Women unmarried since gynaecological problems suspected Children could be affected for life Despised by doctors, government, bureaucrats, rich Bhopalis Forgotten by media

Cases were filed against Union Carbide of gas Incident under these Acts of Indian Penal Code:

Cases were filed against Union Carbide of gas Incident under these Acts of Indian Penal Code Act 304 II – Punishment for human slaughter crime comes under category of murder. In this Act, there is provision of 10 years punishment and fine. (This Act was removed in year 1996) Act 304 A – C ausing Death by negligence. In this Act, there is provision of maximum 2 years punishment and fine. Act 336 – Work by which life of other people or personal well-being is endangered. In this Act, there is provision of maximum 3 months punishment and fine up to Rs. 250. Act 337 – Causing hurt to any person by doing any activity so rashly or negligently, endangering life or personal safety of others. In this Act, there is provision of maximum 6 months punishment and fine up to Rs. 500. Act 338 – Causing grievous hurt by doing any activity, endangering life or personal safety of others. In this Act, there is provision of maximum 2 years punishment and fine up to Rs. 1000

Basic Green Chemistry Principles:

Basic Green Chemistry Principles These principles would have averted the disaster. Eliminate or reduce the production of Hazardous chemicals. Hazardous chemicals produced should not be stored and should be consumed in the course of the reaction. The inventory of Hazardous chemicals if inevitable should be of many small containers and not of one large container. Alternate solution

Alternate Chemistry (suggested solution) :

Alternate Chemistry (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. Inherently safe process. End……

authorStream Live Help