The air we breathe in the lower atmosphere is not primarily composed of oxygen. Instead it contains 78% nitrogen, 21% oxygen and less than 1% gases like argon and carbon dioxide.
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Particulate Matter Workshop to be Webcast live from 1:30pm to 4:00pm on 2/6/2012. More Information: Particulate Matter Planning Workshop on Proposed Amendments to Regulation 2: Permits to be Webcast live from 10:00am to 12:00pm on 2/22/2012. More Information: Rule Workshops
12/14/2011 Board of Directors Special Meeting More Information: 12/14/2011 Agenda (545 k PDF, 23 pgs) Archives: Board Agendas, Minutes and Media
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To promote its programs to the public and media, the Air District posts news releases, provides special news features, and offers an historical overview of its activities on behalf of clean air in the Bay Area.