Hot on the heels of the announcement of EPA's controversial revised ground-level ozone standard, the agency is required by court order to release its proposal for a revised airborne lead standard no later than May 1, 2008. A final rule is required by Sept. 1, 2008.
Anything related to air quality, air pollution, or the atmosphere
Ocean-going ships are a major unregulated air pollution source.
Athletes arrive in Peking wearing masks.
EPA reviews its health-based standard for NO2 as an air pollutant, and has issued a science assessment of health effects.
BEIJING -- Olympic host city Beijing was shrouded in haze on Monday 11 days before the Games begin, raising anxieties about whether it can deliver the clean skies promised for the world's top athletes.