Counties with Monitors Violating the Current Lead Standard of 1.5 ìg/m3 Maximum Quarterly Mean (Based on 2005


A United States

Environmental Protection
* * I	Agency

Counties with Monitors Violating the Current Lead Standard
of 1.5 Hg/m3 Maximum Quarterly Mean

NOTES	

1.	One monitored county (Jefferson County, MO) violated the current lead NAAQS in the 2005-2006 period.

2.	The current National Ambient Air Quality Standard for lead is 1.5 micrograms per cubic meter maximum quarterly average measured as total suspended particles (TSP). The lead NAAQS is not
met at a monitoring site if the maximum quarterly average for the two most recent calendar years of monitored air quality data exceeds 1.5 micrograms per cubic meter.

3.	Monitored air quality data can be obtained from the AQS system at http://www.epa.gov/ttn/airs/airsaqs/

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