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Beginning of Paper
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Lead and The Environment
Some materials are so commonplace that we take them for granted. One of
those materials is a grayish metal that has been with us for thousands of years.
That metal is lead, still one of the world's most useful substances, and one
that never ceases to find a role in human soc ....
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Middle of Paper
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.... Franklin Expedition to the Northwest Passage in the mid-1840s met a
similar fate, being poisoned from lead in solder, widely used at the time to
seal tins used to store foods. Until recently, one of the most significant uses
was an anti-knock additive in gasoline. In the 1970s and 1980s, steps were taken
to reduce the use of leaded gas. By 1990, these actions had virtually eliminated
the use of lead in gasoline. Lead is also one of the best and earliest examples
of recycling about 55 percent of the lead used in Canada comes from recycled
material.
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SUBJECTS
