Here are some USGS Web pages with more information on nutrient content (water) and Anywhere:
National Water-Quality Assessment data warehouse
Data warehouse for national water quality program with links to chemical, biological, and physical data for water, sediment and animal tissues, nutrient, pesticide, and VOC levels, stream flow, and ground water levels from national study units.
(Score: 1.380)
Reston Chlorofluorocarbon Laboratory
Site on the Chlorofluorocarbon Laboratory and its analytical services for CFCs, sulfur hexafluoride, dissolved gases including nitrogen, argon, methane, carbon dioxide, oxygen, and helium, and tritium/helium-3 dating.
(Score: 1.000)
Effects of wastewater on forested wetlands
Study of the effects of the practice of cycling municipal nutrient-enriched wastewater effluent from holding ponds through forested wetlands. Studies were in the Cypiere Perdue Swamp, Louisiana, and the Drummond Bog, Wisconsin.
(Score: 0.488)
Maryland nutrient and sediment nonpoint sources
Overview of the Maryland Nonpoint-Source Study to study the the sources of nutrients and sediments in water, their surface and subsurface transport, and the associated biogeochemical processes affecting the transport and streamload.
(Score: 0.407)
Nitrate in ground water near La Pine, Oregon
Description of project studying hydrologic and chemical processes that affect the movement and fate of nitrogen within the shallow aquifers of the La Pine region of central Oregon.
(Score: 0.348)
Johnson Creek basin hydrologic monitoring
Hydrologic data and analyses of surface-water, water quality, and ground-water in the Johnson Creek basin in Oregon.
(Score: 0.304)
Tualatin River basin water quality assessment
Overview of project assessing water quality of the Tualatin River basin near Portland, Oregon with links to reports on chemical and nutrient levels and selected data on streamflow, water temperature, weather and precipitation.
(Score: 0.302)
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Definition:
Occurrence in water of substances required for the maintenance or growth of organisms. Usually applied to simple dissolved inorganic ions, but can also be applied to dissolved organic forms of nitrogen and phosphorus or to certain trace elements. [Adapted from Glossary of Geology, 4th ed.]
