Date: Mon, 3 Mar 2014 16:05:24 -0800
Subject: pqao -- California Approved Samplers
From: ggilani@arb.ca.gov

The California Air Resources Board (ARB) staff has updated Volume
IV of the Monitoring and Laboratory Division’s Quality Assurance
Manual - Monitoring Methods for the State Ambient Air Quality
Standards.   The update includes the addition of specific
particulate matter (PM10 and PM2.5) samplers and analyzers
approved by ARB as California Approved Samplers (CAS) for the
purpose of determining compliance with the State’s ambient air
quality standards.  The update to the CAS list can be viewed at
the following webpage: 
http://www.arb.ca.gov/aaqm/qa/qa-manual/vol4/vol4pm.htm.
 
The Children's Environmental Health Protection Act (Senate Bill
25, Escutia 1999) required the evaluation of all health-based
ambient air quality standards to determine if the standards
adequately protect human health, particularly that of infants and
children.  The subsequent review of the PM standards resulted in
the adoption of more health protective ambient air quality
standards for PM10, a new standard for PM2.5, and created the CAS
list that identifies acceptable measurement methods to monitor
for compliance with all State standards.  

For questions about the CAS list, please contact Michael Miguel
(916) 322-0960 (or mmiguel@arb.ca.gov).



California is in a drought emergency.
Visit www.SaveOurH2O.org for water conservation tips.

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