The Bhopal gas tragedy occurred on the night of December 2nd-3rd, 1984 in Bhopal, India at a Union Carbide pesticide plant. A leak of methyl isocyanate gas and other chemicals from the plant exposed hundreds of thousands of people. The toxic gas leaked after water entered a tank containing methyl isocyanate, which caused a chemical reaction that increased pressure until the safety valve burst, releasing 20-30 tonnes of gas. People awoke feeling their eyes were burning and had to flee for their lives from the poisonous cloud.

2. THAT NIGHT
It was a very happy life before the incident. Noone even
knows that there was a Union Carbide factory or that
someone that makes this kind of gas existed.But just
after the midnight on 2nd -3rd dec. 1984,a union
carbide pesticides plant in bhopal,leaked toxic gas
into the air.None of the safety systems were working
at the plant,and so 27 tonnes of Methyl isocyanate
were released,spreading throughout the city.People
awoke to the feeling that their eyes were being
burned with chillies and they ran for their lives.
As,union carbide would not tell anyone which
chemicals were there in the toxic cocktail
released,and so doctors did not know how best to
treat the victims.

3. WHAT IS BHOPAL GAS TRAGEDY?
 The Bhopal gas tragedy (Bhopal Disaster)
was one of the world’s worst industrial
catastrophe in the Indian History. It was gas
leak incident in India.
 It occurred on the night of 2nd-3rd December
1984 at the Union Carbide India Limited(UCIL)
pesticide of plant in Bhopal, Madhya Pradesh.
 A leak of methyl isocyanate (MIC) gas and
other chemicals from the plant resulted in the
exposure of hundreds of thousands of people.

4. WHAT WERE THE CAUSES OF THIS
DISASTER?
 A tank containing methyl isoyanate(MIC)leaked.
 MIC is an extremely reactive chemical and is
used in the prodution of 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.

5. CONTINUED…
 As a result,the safety valve of the tank
burst,because of the increase in pressure.
 It is presumed that between 20 to 30 tonnes
of MIC were released during the hour that
the leak took place.
 The gas leaked from a 30m high chimney
and this height was not enough to reduce the
effects of the discharge.

6. WHAT WERE THE EFFECTS ON HUMAN
HEALTH?
 Respiratory disorders- Irritation to the lungs ,
caused coughing and /or shortness of breathing
.Higher exposure caused build up of
fluids(pulmonary enema),caused asthama.
 Cancer Hazard- caused mutation(genetic
changes).It caused cancer.
 Reproductive hazard-association between
exposure to methyl isocyanate and
miscarriages.It may damage the growing
fetus,may also affect fertility in men and women.
 After effect-Traces of many toxins were found in
the brest milk of mothers and were in turn
transmitted to the recipent babies.

7. CONSEQUENCES
 7,10,000 people died from the gas in 72 hours.
 Over an half million people were exposed to the gas,
and more than 25000 have died as a result of
exposure.
 This tragedy is ongoing, as the next generation are
also ill.
 The accident and the pollution at the union carbide
site have caused more than 120,000 people to be
chronically ill.
 Children are ten times more likely to be born with
birth defects in Bhopal now,than elsewhere in India.

8. IN MEDIAS

9. THANK YOU