Photo: eutrophication&hypoxia , Flickr, CC Regulating pollution is a notoriously difficult enterprise, and that’s largely because particulates or emissions spewed in one place may end up impacting folks thousands of miles away. In a new study, scientists have gone a long way in underscoring the truly transient nature of pollution. They’ve found that about “a third of the airborne lead particles recently collected at two sites in the San Francisco Bay Area came from Asia.”… Read the full story on TreeHugger
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1/3 of Lead Air Pollution Found in San Francisco Originated in Asia