Second interim report
Subtitle: quality assurance support for the National Atmospheric Deposition Program and National Trends Network monitoring activities, 1987-1990.
Contributors: Atmospheric Research and Exposure Assessment Laboratory (U.S.)
Publisher: U.S. Environmental Protection Agency, Atmospheric Research and Exposure Assessment Laboratory
Published: 1990
Place of publication: Research Triangle Park, NC
Language: eng
Subjects: National Atmospheric Deposition Program and National Trends Network (U.S.); Quality assurance -- United States.
Other titles: Quality assurance support for the National Atmospheric Deposition Program and National Trends Network monitoring activities, 1987-1990.
Notes: Caption title.

At head of title: Project summary.

Distributed to depository libraries in microfiche.

"June 1990."

"EPA/600/S3-90/018."