Airsheds: Oxidized-Nitrogen Deposition into Coastal Estuaries

Characteristics of Oxidized-Nitrogen Airsheds
Watershed	Size (km²)	Size Factor Over Watershed Area	% Ox-N Deposition Explained	Airshed NOx Emissions as % of E. North American	Efficiency of Deposition %dep. per %emiss.
Casco Bay	624,000	244	47	10	4.7
Great Bay	547,000	214	60	13	4.6
Narragansett Bay	595,200	138	73	18	4.1
Long Island Sound	905,600	22	70	23	3.0
Hudson/Raritan Bay	912,000	22	62	25	2.5
Barnegat Bay	505,600	361	67	16	4.2
Delaware Bay	729,600	22	75	26	2.9
Delaware Inland Bays	326,400	584	52	12	4.3
Chesapeake Bay	1,081,600	6.5	76	34	2.2
Pamlico Sound	665,600	25	63	18	3.5
Winyah Bay	886,400	19	69	24	2.9
Charleston Harbor	806,400	20	56	18	3.1
St. Helena Sound	588,800	48	59	11	5.4
Altamaha	678,400	18	68	13	5.2
Tampa Bay	256,000	45	76	5	15.2
Apalachee Bay	441,600	31	50	9	5.6
Apalachicola Bay	812,800	16	69	17	4.1
Mobile Bay	992,000	8.7	68	17	4.0
Lake Pontchartrain	659,200	17	63	11	5.7
Barataria-Terrebonne	409,600	55	63	8	7.9

Contacts: Robin Dennis

Paerl H.W., Dennis, R.L., Whitall, D.R., Atmospheric deposition of nitrogen: Implications for nutrient over-enrichment of coastal waters, Estuaries 25(4B), 677-693, 2002. (abstract)