External quality-assurance results for the National Atmospheric Deposition Program/National Trends Network during 1988. Water resources investigation
The National Atmospheric Deposition Program (NADP) was established in 1978 as a national monitoring network to investigate acid deposition. The National Trends Network (NTN) was established in 1982 to expand the NADP effort into areas not previously sampled. Most sites in the NADP were incorporated into the NTN operation. Data collected as part of the NADP/NTN programs are used to monitor spatial and temporal trends in the chemical composition of natural wet deposition and to provide accurate data to individual scientists or agencies involved in research on the effects of acid deposition. The report describes the results of the external quality-assurance programs operated by the U.S. Geological Survey during 1988. These programs: (1) Assess the precision and accuracy of onsite determinations of pH and specific conductance; (2) evaluate the effects of onsite and laboratory protocols on the bias and precision of NADP/NTN analyte determinations; (3) determine the comparability, bias, and precision of analytical results obtained by separate laboratories when portions of a common sample were analyzed; and (4) estimate the precision of the entire sampling system.
- Research Organization:
- Geological Survey, Denver, CO (USA). Water Resources Div.
- OSTI ID:
- 6065511
- Report Number(s):
- PB-91-144097/XAB; USGS-BULL-90-4030
- Resource Relation:
- Other Information: Also available from Supt. of Docs
- Country of Publication:
- United States
- Language:
- English
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01 COAL, LIGNITE, AND PEAT
ACID RAIN
AIR POLLUTION MONITORING
RESEARCH PROGRAMS
QUALITY ASSURANCE
AIR POLLUTION
ATMOSPHERIC CHEMISTRY
DEPOSITION
ELECTRIC CONDUCTIVITY
NAPAP
PH VALUE
SAMPLING
SPATIAL DISTRIBUTION
TIME DEPENDENCE
ATMOSPHERIC PRECIPITATIONS
CHEMISTRY
DISTRIBUTION
ELECTRICAL PROPERTIES
PHYSICAL PROPERTIES
POLLUTION
RAIN
540120* - Environment
Atmospheric- Chemicals Monitoring & Transport- (1990-)
010900 - Coal
Lignite
& Peat- Environmental Aspects