National performance audit program
Subtitle: 1979 proficiency surveys for sulphur dioxide, nitrogen dioxide, carbon monoxide, sulfate, nitrate, lead and high volume flow
By: B.I. Bennett, R.L. Lampe, and J.C. Puzak.
Contributors: Lampe, Robert L.; Puzak, John C.; Environmental Monitoring Systems Laboratory (Research Triangle Park, N.C.)
Publisher: U.S. Environmental Protection Agency, Environmental Monitoring Systems Laboratory ; Cincinnati, OH; Center for Environmental Research Information [distributor]
Published: 1981
Place of publication: Research Triangle Park, NC
Language: eng
Subjects: Air -- Pollution -- United States -- Measurement.
Notes: Caption title.

At head of title: Project summary.

"Sept. 1981."

"EPA-600/S4-81-025."