Prediction of ambient PM2.5 concentrations in Maryland
- Maryland Dept. of Natural Resources, Annapolis, MD (United States)
- Science Applications International Corp., Raleigh, NC (United States)
In 1997 the State of Maryland had no available ambient Federal Reference Method data on particulate matter less than 2.5 microns in aerodynamic diameter (PM2.5) but did have annual ambient data for particulate matter smaller than 10 microns (PM10) at twenty-four sites. The PM10 data was analyzed in conjunction with local annual and seasonal ZIP code-level emission inventories and with speciated PM2.5 data from four nearby monitors in the IMPROVE network (located in the national parks and wilderness areas) in an effort to predict annual average and seasonal high PM2.5 concentrations at the twenty-four PM10 monitor sites operating from 1992 to 1996. All seasonal high concentrations were predicted to be below the 24-hour PM2.5 National Ambient Air Quality Standard (NAAQS) at the sites operating in Maryland between 1992 and 1996. The projections also indicated that twelve monitor sites might exceed the three-year annual average PM2.5 NAAQS of 15 m g/m3, but Maryland`s air quality shows signs that it has been improving since 1992.
- OSTI ID:
- 682169
- Report Number(s):
- CONF-980632--
- Country of Publication:
- United States
- Language:
- English
Similar Records
PM2.5 measurements in the Tennessee Valley region
Compliance with the new PM2.5 standard -- attainment or non-attainment?