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Title: Role of acid rain in atmospheric deposition. Final report

Technical Report ·
OSTI ID:6046262

A study was conducted to assess the potential importance of atmospheric nitrate deposition for a north Florida estuary. A comparison, based on statistical analysis of fluxes of ten dissolved constituents of rain water and river water, has been carried out for the watershed of the Apalachicola River, utilizing weekly rain water chemical data from the National Acid Deposition Program (NADP) for five sites within the watershed area, monitored from 1978-84 until late 1989, and less frequent river water chemical data from the U.S. Geological Survey for one site at Chattahoochee, Florida, monitored from 1965 until late 1989. Similar statistical analysis was performed on monitoring data for the Sopchoppy and Ochlockonee Rivers of north Florida. Atmospheric deposition to the watershed appears to be sufficient to account for essentially all the dissolved nitrate and ammonium and total organic nitrogen flow in the three rivers. However, after deposition most of the nitrate may be transformed to other chemical forms during the flow of the rivers toward their estuaries. In an additional statistical analysis of rain water monitoring data from the eight state southeastern USA region, it was found that both meteorological conditions and transport from pollution sources appear to control deposition fluxes of nitrate and sulfate acid air pollutants.

Research Organization:
International Business Machines Corp., Armonk, NY (United States)
OSTI ID:
6046262
Report Number(s):
PB-91-241471/XAB; CNN: NA89AA-D-CZ-228
Resource Relation:
Other Information: Sponsored by National Oceanic and Atmospheric Administration, Washington, DC. Office of Ocean and Coastal Resource Management, and Florida State Dept. of Environmental Regulation, Tallahassee. Office of Coastal Management
Country of Publication:
United States
Language:
English