25
Feb
2011
National Ambient Air Quality Standard for Lead
Posted On February 25, 2011
By Environmetal
And has No Comment
On November 12, 2008 the EPA substantially strengthened the National Ambient Air Quality Standards (NAAQS) for Lead (see 73 FR 66964 (PDF). The EPA mandated a tenfold reduction in the level of the primary (health-based) standard from 1.5 micrograms per cubic meter to 0.15 micrograms per […]
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