Web Date: November 10, 2010
Lead Isotopes Tag The Origins Of Particulate Air Pollutants
The Clean Air Act sets air quality standards that municipalities in the United States must meet. But some pollution travels from thousands of miles away. Now researchers have developed a method to more precisely identify the origins of small particulate pollutants (Environ. Sci. Technol., DOI: 10.1021/es101450t). With it, they determined that 29% of the San Francisco area's . . .
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