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Search Results for the EPA National Library Catalog
Items Found: 99
Showing: Items 1 - 50
Your Search: (SUBJECT=Water Nitrogen content)
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Title
Year Published
1
15
N-tracer and other laboratory studies of nitrogen remineralization in sediments and waters from Narragansett Bay, Rhode Island /
1982
2
A decision support framework to facilitate nitrogen load reductions in Long Island Sound (LIS) watershed /
2006
3
A field study to compare performance of stainless steel research monitoring wells with existing on-farm drinking water wells in measuring pesticide and nitrate concentrations /
1998
4
A model of seasonal changes in total nitrogen concentration in the Lake Wingra water column; Lake Wingra site.
1973
5
A study of precision and accuracy of laboratories and methods of analysis of ammonia nitrogen in Lake Michigan waters /
1967
6
A study of temporal and spatial variation in nitrogen concentrations in a tallgrass prairie stream /
1985
7
Algal nutrient availability and limitation in Lake Ontario during IFYGL : Part II. Nitrogen available in Lake Ontario tributary water samples and urban runoff from Madison, Wisconsin /
1977
8
An urgent call to action : report of the State - EPA Nutrient Innovations Task Group /
2009
9
Assessment of sources of elevated nitrate in ground water in northwest Ada County, Idaho, using environmental isotopes /
1999
10
Chemical nutrients in Lake George : a final technical report for Union Carbide subcontract no.3639 for the Eastern Deciduous Forest Biome, IBP, Lake George site /
1972
11
Chesapeake Bay total maximum daily load for nitrogen, phosphorus and sediment.
2010
12
Coastal communications : Development of nitrogen loading-response models for Northeast U.S. estuaries.
2002
13
Development of a pilot plant to demonstrate removal of carbonaceous, nitrogenous, and phosphorus materials from anaerobic digester supernatant and related process streams /
1970
14
Distribution and variability of nitrogen and phosphorus in the alluvial, High Plains, Rush Springs, and Blaine aquifers in western Oklahoma
1994
15
Distribution of ammonia nitrogen in the lower York River, Virginia : Spring, 1961.
1961
16
Distribution of nitrate and related nitrogen species in the unsaturated zone, Redlands and vicinity, San Bernardino County, California
1979
17
Effect of nitrification on corrosion in the distribution system /
2010
18
Estimates of sediment denitrification and its influence on the fate of nitrogen in Chesapeake Bay /
1987
19
Estimation of total nitrogen and phosphorus in New England streams using spatially referenced regression models /
2004
20
Fate of nitrogen in shallow streams : focus on nitrification
1983
21
Flow phase distribution of nitrogen and phosphorus in the Potomac River system
1986
22
Formation and significance of N-chloro compounds in water supplies /
1980
23
Freshwater and saline loads of dissolved inorganic nitrogen to Hood Canal and Lynch Cove, western Washington
2006
24
Ground water and soil nitrate one year after cultivation in Hailstone Basin near Rapelje, Montana
1977
25
Ground-water discharge and base-flow nitrate loads of nontidal streams, and their relation to a hydrogeomorphic classification of the Chesapeake Bay watershed, Middle Atlantic coast /
1998
26
Ground-water vulnerability to nitrate contamination at multiple thresholds in the Mid-Atlantic Region using spatial probability models /
2005
27
Ground-water vulnerability to nitrate contamination at multiple thresholds in the Mid-Atlantic Region using spatial probability models /
2005
28
Ground-water vulnerability to nitrate contamination in the Mid-Atlantic Region /
2005
29
Health hazards from nitrates in drinking-water report on a WHO meeting.
1985
30
Hydrogeologic foundations in support of ecosystem restoration : base-flow loadings of nitrate in mid-Atlantic agricultural watersheds /
1999
31
In situ nitrogen dynamics within an estuarine embayment /
1969
32
Lake Erie nutrient control : effectiveness regarding assessment in eastern basin /
1980
33
Major sources of nitrogen input and loss in the upper Snake River Basin, Idaho and western Wyoming, 1990
1996
34
Method 1686 : nitrate/nitrite-N in water and biosolids by manual colorimetry.
2001
35
Method 1687 : total Kjeldahl nitrogen in water and biosolids by automated colorimetry with preliminary distillation/digestion.
2001
36
Method 1688 : total Kjeldahl nitrogen in water and biosolids by automated colorimetry with preliminary semi-automatic digestion.
2001
37
Method 245.7 : mercury in water by cold vapor atomic fluorescence spectrometry : draft.
2001
38
Methods of analysis by the U.S. Geological Survey National Water Quality Laboratory : determination of ammonium plus organic nitrogen by a Kjeldahl digestion method and an automated photometric finish that includes digest cleanup by gas diffusion /
2000
39
National lake survey program : highlights.
1974
40
New process for treating wastewater : nitrogen control /
0
41
Nitrate and drinking water.
1988
42
Nitrate and phosphorus runoff losses from small watersheds in Great Lakes Basin /
1978
43
Nitrate contamination of subsurface waters in an urbanizing area final report /
1982
44
Nitrate flux from ground to surface waters adjacent to the Neuse River Waste Water Treatment Plant
2006
45
Nitrate in ground water and surface water in a residential subdivision, West Windsor Township, Mercer County, New Jersey, 1993
1996
46
Nitrate reduction in the Armstrong Creek Basin
1996
47
Nitrate removal from water at the water-mud interface in wetlands /
1976
48
Nitrates and phosphorus runoff losses from small watersheds in Great Lakes Basin,
1978
49
Nitrogen - ammonia/nitrate/nitrite : water quality standards and criteria summaries : a compilation of state/federal criteria /
1980
50
Nitrogen and phosphorus determinations in estuarine waters : a comparison of methods used in Chesapeake Bay monitoring /
1987
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