Revised PM2.5 Standard Issued by USEPA
Jan 4th, 2013 | By EHS Journal
In response to a court order, the U.S. EPA finalized on December 14, 2012 an update to its national air quality standards for harmful fine particle pollution (PM2.5), setting the annual health standard at 12 micrograms per cubic meter. This announcement has no effect on the existing daily standard for fine particles or the existing daily standard for coarse particles (PM10)…
