National PM{sub 2.5} Chemical Speciation Laboratory Program -- Implementation and support for monitoring networks
PM{sub 2.5} chemical speciation is included in the monitoring requirements and principles set forth by the Federal Register 1, promulgated as part of the PM{sub 2.5} National Ambient Air Quality Standard (NAAQS) review completed in 1997. As a requirement of this rule, a chemical speciation network of trends sites to provide a basic, long-term record of the characterization of the metals, ions, and carbon constituents of PM{sub 2.5} will be established. Fifty-four sites have been selected for determination of trends. These sites will be National Air Monitoring Stations (NAMS) and provide nationally consistent data for assessment of trends. This network will serve as a model for other chemical speciation efforts and represents a small fraction of the overall chemical speciation effort that EPA expects to support with Federal funds. The EPA has established an analytical laboratory framework to support the needs for chemical speciation of filter-based samples collected within a monitoring network in excess of 300 sites on a national scale. A primary goal of this structure is to ensure the production of quality data that will result from the analyses of several thousand samples annually. During 1999, State and local agencies will establish an extensive array of monitoring sites equipped with multi-filter PM{sub 2.5} speciation samplers. Equally important is the establishment of methods and standardized SOPs for speciation analyses for the target analytes of interest. Analytical methods with proven application to the analysis of ambient particulate matter filter samples will be used for the this program.
- Research Organization:
- Environmental Protection Agency, Research Triangle Park, NC (US)
- OSTI ID:
- 20002059
- Report Number(s):
- CONF-990608--
- Country of Publication:
- United States
- Language:
- English
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