National Acid Precipitation Assessment Program

D. Albritton and co-workers, NAPAPIntenm Assessment, Vol. 3 (Atmosphere Process and Deposition), National Acid Precipitation Assessment Program, Washiagton, D.C., 1987. 

Irving, P. Ed. Acidic deposition State of science and technology. National Acid Precipitation Assessment Program, Washington, DC, 1990. Clark, T.L., Denise, R.L., Seilhop, S.K., Voldner, E.C., Olson, M.P., and Alvo, M. International sulfur desposition model evaluation. Atmospheric Environment Service, Publication No. ARD-87-1, 1987, Downsview, Ontario, Canada. 

The first major U.S. effort to deal with acid precipitation dates to 1980, when Congress created the National Acid Precipitation Assessment Program (NAPAP). NAPAP s mandate was to carry out... 

Integrated Assessment Report The U.S. National Acid Precipitation Assessment Program Washington, DC, 1991. 

Sisterson, D. L. Bowersox, V. C. Olsen, A. R. Meyers, T. P. Vong, R. L. Deposition Monitoring Methods and Results State of Science/Technology Report No. 6 National Acid Precipitation Assessment Program Washington, DC,... 

Wigington, P. J. Davies, T. D. Tranter, M. Eshleman, K. Episodic Acidification of Surface Waters Due to Acidic Deposition Acidic Deposition State of Science and Technology Report 12 National Acid Precipitation Assessment Program Washington, DC, 1990. 

The United States Environmental Protection agency (F.PA) is required by several Congressional and other mandates to assess the effectiveness of air pollution control efforts. These mandates include Title IX of the Clean Air Act Amendments (CAAA), the National Acid Precipitation Assessment Program (NAPAP). the Government Performance and Results... 

The topic of acid rain during the 1980s and early 1990s was one of controversy and of incomplete answers in terms of official policy and science—after an expenditure of many millions of dollars. In 1980. the National Acid Precipitation Assessment Program (NAPAP) was established and subsequently consumed thousands of scientific research hours and costly field investigations, including the use of numerous helicopter expeditions to northwestern mountain and lake areas of the United States and Canada. Thousands of hours of computer power were consumed. 

This work was supported by the National Oceanic and Atmospheric Administration (Contracts NA82RAC00151, NA82RAC00152, and NA85RAC05105) as part of the National Acid Precipitation Assessment Program. 

This work was supported by NOAA as part of the National Acid Precipitation Assessment Program. 

The Causes and Effects of Acidic Deposition. National Acid Precipitation Assessment Program, Interim Assessment, Vol. I, U.S. Gov t Printing Office Washington, DC, Sept. 1987. 

National Acid Precipitation Assessment Program," Annual Report 1984 to the President and Congress, EOP Publications, 726 Jackson Place, N.W., Washington, DC 20503. 

National Science and Technology Council (1996) Committee on Environment and Natural Resources, national acid precipitation assessment program biennial report... 

National Acid Precipitation Assessment Program (NAPAP). (1990). Acidic Deposition State of Science and Technology. Vol. I. Emissions, Atmospheric Processes, and Deposition. Government Printing Office, Washington, DC. 

This currently operating network extends from Alaska to Puerto Rico, and from Maine to American Samoa with 190 sampling sites. Many of the stations have been identified as National Trends Network (NTN) sites - the monitoring network of the National Acid Precipitation Assessment Program (NAPAP) (15). 

This research has been funded by the Bureau of Mines and the National Acid Precipitation Assessment Program through a costsharing Interagency Agreement between the Bureau and the Environmental Protection Agency. Use of trade names or company names does not imply endorsement by the Bureau of Mines. 

The deterioration of marble and limestone exposed both to anthropogenic acid deposition from the environment and to natural weathering is being assessed as one of the major activities of the Materials Effects Task Group of the National Acid Precipitation Assessment Program (NAPAP). There is much concern for the calcareous stone materials because of their widespread use as the exterior structure of commercial, institutional, and private buildings as well as in valued monuments and memorials. These calcium carbonate materials are especially sensitive to an acid environment. 

The research being performed to support the National Acid Precipitation Assessment Program (NAPAP) has also led to considerable progress with regard to the other problem areas mentioned above. Damage functions have been developed by analyzing experimental data which delineate the separate effects of dry deposition of SO2 from those of wet deposition of acidity (H ), not only for metals (3 but for paints (O and calcareous stones ( 5). The spatial variability of relative humidity and thus... 

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