Spare the Air 2006 - How did we do?

Here's our score for 2006, compared to previous years, from Spare the Air website at http://www.sparetheair.org/data/air_scores.htm. I'm not an expert, but it doesn't look good to me. It looks like we exceeded both California and National standards on over 11 days this year.




* The national 8-hour standard was not implemented prior to 1998.
** The California 8-hour standard became effective May 17, 2006. The Air District began keeping records for the standard in 2005.
***The national 1-hour standard was revoked on June 15, 2005.

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· Spare the Air advisories are issued when violations of national health standards are predicted by the Air District during the Spare the Air season. In 2004 this extends from June 1 through October 15.

· The national 1 hour air quality standard for ozone was set at 120 parts per billion in the ambient air, averaged over 1 hour. The U.S. EPA revoked this standard as of June 15, 2005.

· The national 8 hour standard for ozone is set at 80 parts per billion of ozone in the ambient air, averaged over 8 hours.

· The California 1 hour standard for ozone is set at 90 parts per billion of ozone in the ambient air, averaged over 1 hour.

· The California 8 hour standard for ozone is set at 70.0 parts per billion of ozone in the ambient air, averaged over 8 hours.


Visit the Air District's web site for more information about the state and federal ambient air quality standards and the Bay Area's attainment status, and to see ten years of annual air quality summary information about Bay Area air quality.