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Earlier - leaded petrol used to be the most widespread - though easily preventable - source of urban air pollution in the world. According to WHO (World Health Organisation). 15-18 million children in the developing countries are already suffering from permanent brain damage due to lead poisoning. Why is tetra-ethyl lead added to petrol?

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Earlier - leaded petrol used to be the most widespread - though easily preventable - source of urban air pollution in the world. According to WHO (World Health Organisation). 15-18 million children in the developing countries are already suffering from permanent brain damage due to lead poisoning. Why is tetra-ethyl lead added to petrol?






 
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