EPA, San Diego County Air District monitoring PM2.5 at San Ysidro border crossing
Green Car Congress
FEBRUARY 6, 2015
The US EPA and San Diego County Air Pollution Control District (SDAPCD), in cooperation with US Customs and Border Protection and the US General Services Administration have installed a new air pollution monitor at the San Ysidro Port of Entry. Mexico border crossing,” Atmospheric Environment doi: 10.1016/j.atmosenv.2013.12.042.
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