Quality Assurance Report: National Atmospheric Deposition Program, 2002

In 2005, scientists, students, educators, and others interested in the National Atmospheric Deposition Program (NADP) logged more than 310,000 sessions and viewed nearly 93,000 maps on the NADP Web site. Users downloaded 18,564 data files from this site, which now annually receives more than 1.2 million hits. These data are used to address important questions about the impact of the wet deposition of nutrients on eutrophication in coastal estuarine environments; the relationship between wet deposition, the health of unmanaged forests, and the depletion of base cations from forest soils; the impact of pollutant emissions changes on precipitation chemistry; and the rate at which precipitation delivers mercury to remote lakes and streams. ...Ope

Determining the Chemical Composition of Cloud Condensation Nuclei: Second Progress Report

published or submitted for publicationis peer reviewedOpe

Determining the Chemical Composition of Cloud Condensation Nuclei

published or submitted for publicationis peer reviewedOpe

Determining the Chemical Compostition of Cloud Condensation Nuclei: Third Progress Report

published or submitted for publicationis peer reviewedOpe

Quality Assurance Report: National Atmospheric Deposition Program 2008

The National Atmospheric Deposition Program (NADP) and the Central Analytical Laboratory (CAL) have been in operation since 1978. Since the beginning of the network, quality assurance has been of paramount importance. The Quality Assurance Report, National Atmospheric Deposition Program, 2008, describes the quality assurance measures used at the CAL for the NADP/National Trends Network (NTN) and NADP/Atmospheric Integrated Research Monitoring Network (AIRMoN), and reports the results of these programs. The goal of the CAL quality assurance program is to provide reliable, consistent, high-quality data that fulfill the needs of researchers and other data users. This is achieved by incorporating quality control and quality assurance checks throughout the sample flow process. System blanks and control checks are included at strategic sample and data flow points. Results are compiled to generate information about the quality of the data, presented in tables or brief written explanations. The CAL met its quality control objectives for the networks in 2008.published or submitted for publicationis peer reviewe

Quality Assurance Report: National Atmospheric Deposition Program, 1996 and 1997

The 1996 and 1997 Quality Assurance Report for the National Atmospheric Deposition Program (NADP) describes and summarizes the results of the Central Analytical Laboratory’s (CAL) quality assurance program for 1996 and 1997. The procedures for supporting reliable data are demonstrated through a quality assurance program. This report, through text, figures, and tables, defines the quality assurance program in place at the CAL and assesses the precision and accuracy of the data generated and reported through the NADP.published or submitted for publicationis peer reviewe

The NADP Atmospheric Integrated Research Monitoring Network - WET (NADP/AIRMoN-wet) - Site Operator's Manual

The objective of the National Atmospheric Deposition Program/Atmospheric Integrated Research Monitoring Network (NADP/AIRMoN) for wet deposition is to detect, as rapidly as possible, air quality and deposition changes that result from emissions changes. This activity is being promoted by the National Oceanic and Atmospheric Administration (NOAA) as part of its "Health of the Atmosphere" initiative, under guidance contained in the Clean Air Act Amendments of 1990 (CAAA)1, and as a contribution to the National Acid Precipitation Assessment Program (NAPAP)2. The NADP/AIRMoN program is designed to provide deposition information required to evaluate the progress of the emissions reductions mandated by the CAAA. NADP/AIRMoN started in October, 1992 to establish deposition levels prior to Phase I emission rollbacks in 1995. It will be necessary to continue sampling at least until early in the next century to determine the full impact of the CAAAs on deposition, which will not occur until after 2000.published or submitted for publicationis peer reviewe