Lead is the most hazardous pollutant in automobile exhaust.
It is a highly toxic, immobile metal pollutant released due to the combustion of petrol.
Lead is a neurotoxin that affects the nervous system in human beings and contaminates the environment, soil, and water.
Organic lead compounds such as tetraethyl lead and tetramethyl lead are important additives to petrol.
WHO has identified Lead as one of the 10 chemicals of major concern for the public.
Studies have shown that the body level of lead in human beings is about 500 times higher than in pre-industrial times.
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