Abstract From January 1989 through January 1990 samples of ambient air were collected at 14 sites in the eastern part of the U.S. Every 12 days, air was integrated over 24-hour periods into passivated stainless steel canisters. Simultaneously, air was drawn through cartridges containing dinitrophenylhydrazine to collect carbonyl compounds. The samples were analyzed at a central laboratory for a total of 37 halogenated and aromatic hydrocarbons, formaldehyde, acetaldehyde, and other oxygenated species. The hydrocarbon species were analyzed by gas chromatography/multiple detectors and gas chromatography/mass spectrometry, while the carbonyl species were analyzed by liquid chromatography. An extensive quality assurance program was carried on to secure high quality data. Complete data for all the carbonyl samples are presented in the report.
Notes "Office of Air Quality Planning and Standards." "Office of Air and Radiation." "EPA-450/4-91-001." "EPA contract no. 68-D8-0014." "EPA Contract Officers: Neil J. Berg, Frank F. McElroy and Vinson L. Thompson." "October 1990."
Supplementary Notes See also PB88-148556. Sponsored by Environmental Protection Agency, Research Triangle Park, NC. Office of Air Quality Planning and Standards.
Corporate Au Added Ent United States. Environmental Protection Agency. Office of Air Quality Planning and Standards.; United States. Environmental Protection Agency. Office of Air and Radiation.
Ti Tra Differently Urban air toxics monitoring program.