Nitrate deposition in Maryland: Effects on water quality in the Chesapeake Bay
Conference
·
OSTI ID:617873
- Dept. of Natural Resources, Annapolis, MD (United States)
Anoxia (dissolved oxygen, DO < 2 ppm) and hypoxia (DO 2 - 5 ppm) are regularly occurring events in the estuarine waters of the United States. These events have been studied in the Chesapeake Bay for many years due to their adverse effect on the ecology, and commercial and recreational potential of the largest estuary in the country. Oxygen depletion is associated with excess nutrient supply (eutrophication), and the approach to control and prevention is through limiting this supply, particularly nitrogen. Oxides of nitrogen are a product of combustion, and on release are typically oxidized to nitrates and ultimately deposited. This deposition contributes to the total nitrogen loading to the Bay and its watershed. The application of the Clean Air Act Amendments of 1990 will result in reductions of nitrogen emissions from combustion sources; this paper reviews contributions of deposition to the Bay and watershed in Maryland, and estimates the reductions that may be achieved through the CAAA.
- OSTI ID:
- 617873
- Report Number(s):
- CONF-970145--
- Country of Publication:
- United States
- Language:
- English
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