Ever felt tempted on a snowy day to throw back your head and drink in some of those pure white flakes? Try to resist the impulse. After testing samples of snow from several Kansas City areas, Research Chemist David Roberts, a specialist in heavy-metal poisoning, discovered amounts of lead that measured six times the level specified in the Environmental Protection Agency's clean-water standards. Even water from the polluted Kansas River proved less leaden than the snow. According to Roberts, car exhausts and factories are spewing into the environment 1,000 times the natural level of lead, and snow acts as a "scrubber"...
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