Record Display for the EPA National Library Catalog


OLS Field Name OLS Field Data
Main Title National Air Sampling Network.
Author Levene., Barry ;
CORP Author Environmental Protection Agency, Denver, Colo. Region VIII.
Year Published 1975
Stock Number PB-255 288
Additional Subjects Sulfur dioxide ; Nitrogen dioxide ; Sulfates ; Nitrates ; Sites ; Monitoring ; Particles ; Concentration(Composition) ; Samples ; Calibrating ; Measuring instruments ; Standards ; Gas analysis ; Bubbles ; Tables(Data) ; Ammonia ; Organic compounds ; Air quality data ; Air pollution monitoring ; Monitors
Library Call Number Additional Info Location Last
NTIS  PB-255 288 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. NTIS 06/23/1988
Collation 31p
This report presents a region-wide summary of air monitoring sites which are part of the National Air Sampling Network (NASN). The network in Region VIII consists of fifteen sites, all of which contain one high volume sampler to measure total suspended particulate, and seven of which have, in addition, gas bubblers to measure ambient concentrations of SO2 and NO2. Since January 1974, the EPA Regional Office in Denver has been responsible for network operation, maintenance, and calibration of equipment. The operators of the sites are volunteers from the Forest Service, National Park Service, or State or local air pollution agencies. All necessary supplies, including filters and bubblers, are sent to the operators by the EPA Regional Laboratory and samples are returned to the Laboratory after sampling has occurred. Samples are run from midnight to midnight (24-hours) on the days indicated by the 6-day sampling schedule (see Appendix B). The Laboratory analyzes the samples according to standard methods and reports concentrations in micrograms per cubic meter of air (microgram/cu m). Twice each year, EPA personnel inspect the sites, replace worn equipment and calibrate the instruments. Further analyses are done on every other filter from each site by EPA. Filters are analyzed for nitrates, sulfates, ammonia, and organics. Data obtained is contained in this report.