||Summary report for the National Atmospheric Deposition Program/National Trends Network (NADP/NTN) site visitation program for the period October 1988 through September 1989 /
Eaton, W. C. ;
Moore, C. E. ;
Murdoch, R. W. ;
Shores, R. C. ;
Ward, D. A.
||Research Triangle Inst., Research Triangle Park, NC.;Environmental Protection Agency, Research Triangle Park, NC. Atmospheric Research and Exposure Assessment Lab.
|| Research Triangle Institute,
Acid rain--United States--Measurement ;
Acid precipitation (Meteorology)--United States--Measurement ;
Acid deposition--United States--Measurement ;
Rain and rainfall--United States ;
Acid deposition--Measurement ;
Acid precipitation (Meteorology)--Measurement ;
National Atmospheric Deposition Program and National Trends Network (US) ;
Air pollution sampling ;
Acid rain ;
Site surveys ;
Environmental effects ;
Collecting methods ;
Quality assurance ;
Quality control ;
Rain gages ;
National Atmospheric Deposition Program/National Trends Network
||Some EPA libraries have a fiche copy filed under the call number shown.
||1 volume (various pagings) : illustrations, map ; 28 cm
The proper collection of precipitation and the accurate measurement of its constituents are important steps in attaining a better understanding of the distribution and effects of acid rain in the United States. One of NAPAP Task Group IV's major programs concerns wet deposition monitoring. One of that program's project, 4A-15, 'Quality Assurance Support for Wet Deposition Monitoring,' is sponsored by the U.S. Environmental Protection Agency (EPA) to evaluate the sample collection process and provide technical assistance to the NADP/NTN network through a site visitation program. Research Triangle Institute, as contractor to EPA, conducts these visits. If deficiencies or nonstandard procedures are noted, the site operator and supervisor are notified. Brief reports are sent to the EPA Project Officer, the NADP/NTN Quality Assurance Manager, and others. In this way, necessary changes can be made promptly. All NADP/NTN sites were visited in 1985-1986. A second round of visits began in October 1986, with the goal of visiting approximately one-third of the 200 sites each year over the next three years. The document is a summary report of the findings from the 1988-1989 (Fiscal Year 1989) site visitation program to 72 of the sites of the NADP/NTN network.
"December 1991" "EPA/600/R-92/152" "PB92-219823" Includes bibliographical references. Microfiche.