Word: peroxyacetyl
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...crisis that in 1963 killed 400 New Yorkers. Cars complete the deadly picture. While U.S. chimneys belch 100,000 tons of sulfur dioxide every day, 90 million motor vehicles add 230,000 tons of carbon monoxide (52% of smog) and other lethal gases, which then form ozone and peroxyacetyl nitrate that kill or stunt many plants, ranging from orchids to oranges. Tetraethyl lead in auto exhausts affects human nerves, increasing irritability and decreasing normal brain function. Like any metal poison, lead is fatal if enough is ingested. In the auto's 70-year history, the average American...
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