In USA in the 1970s, 200,000 tonnes of lead was added to petrol every year. Now leaded petrol for cars is banned. Discover the dangers of tetraethyl lead in petrol. Midgley Junior added lead to fuel, making it better for our engines.
However, lead is a dangerous pollutant. It is toxic and damages our inner organs. Leaded fuel caused a health scare. Leaded fuel has been banned and replaced with unleaded.

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