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Environment

U.S., Canada address particulate pollution

April 23, 2007 | APPEARED IN VOLUME 85, ISSUE 17

Canada and the U.S. will hammer out an agreement to control the cross-border flow of particulate air pollution, EPA Administrator Stephen L. Johnson and Canadian Environment Minister John Baird announced on April 13. The new pact will build on the U.S.-Canada Air Quality Agreement, a 1991 treaty that initially addressed acid rain and scientific cooperation. The two nations added an annex to the accord in 2000 to cover ground-level ozone. The yet-to-be negotiated annex will reduce solid and liquid particle pollution, Johnson and Baird said. It is also expected to reduce acid rain and haze along the U.S.-Canada border. The two nations have not set a time frame for completing the talks on the new accord on particulates, an EPA spokeswoman tells C&EN.

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