Found 104 datasets matching "nitrate sources".
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This data package was created 2025-12-03 09:02:38 by NPSTORET and includes selected project, location, and result data. Data are from Mauryn Quenga McDonald's (University of Guam Water and...
Search relevance: 121.01 | Views last month: 3 -
This data release contains chemical and isotopic data used in an investigation of nitrate sources and transport in the Upper Illinois River basin. Samples (total = 445) include river water from...
Search relevance: 116.04 | Views last month: 0 -
Located in south-central Texas, the Geronimo Creek and Plum Creek watersheds have long been characterized by elevated nitrate concentrations. From April 2015 through March 2016, an investigation...
Search relevance: 62.23 | Views last month: 0 -
This record provides dissolved inorganic nutrient and human dietary tracer (caffeine and sucralose) concentration metrics collected monthly between May 2023 to May 2024 to provide reference data...
Search relevance: 43.42 | Views last month: 0 -
This data release contains a boosted regression tree (BRT) model (written in the R programming language), and the input and output data from that model that were used to relate base flow nitrate...
Search relevance: 43.17 | Views last month: 0 -
This map displays predicted probability of a 12-digit Hydrologic Unit (HUC12) being at risk of violating the drinking water nitrate standard. Risk is defined as there being greater than a 50%...
Search relevance: 43.03 | Views last month: 0 -
Chemistry data were collected or compiled from stream water, lake water, and groundwater. Stream water samples were collected more frequently to capture the range of streamflow conditions....
Search relevance: 42.99 | Views last month: 1 -
This raster data set represents the percentage of probability of nonpoint-source nitrate contamination (greater than the proposed background concentration of 4 milligrams per liter (mg/L) as N)...
Search relevance: 42.18 | Views last month: 0 -
The present Hydrochemical Atlas of the Arctic Ocean is a description of hydrochemical conditions in the Arctic Ocean on the basis of a greater body of hydrochemical information for the years...
Search relevance: 40.41 | Views last month: 1 -
Greenhouse Gas Study for Greenhouse gas Reduction through Agricultural Carbon Enhancement network in Bowling Green, Kentucky Alternative N fertilizers that produce low greenhouse gas (GHG)...
Search relevance: 37.13 | Views last month: 1 -
This public data release contains two ascii grids comprising predicted nitrate concentrations (as NO3-N, mg/L) at two depth zones associated with private and public drinking water supply wells,...
Search relevance: 36.83 | Views last month: 4 -
The NARSTO_EPA_SS_LOS_ANGELES_PM25_NITRATE data were collected between July 2001 and January 2002. At Claremont and Rubidoux (Los Angeles County, California), Cascaded Integrated Collection and...
Search relevance: 36.64 | Views last month: 0 -
The NARSTO_EPA_SS_HOUSTON_NO3_SO4_C_DATA files contain continuous measurements of PM2.5 nitrate, PM2.5 sulfate, and PM2.5 carbon collected during August 12, 2000 through November 5, 2001 at the...
Search relevance: 36.08 | Views last month: 0 -
The NARSTO_EPA_SS_HOUSTON_NH3_HNO3_is the North American Research Strategy for Tropospheric Ozone (NARSTO) Environmental Protection Agency (EPA) Supersite (SS) Houston, Ammonia and Nitric Acid...
Search relevance: 35.93 | Views last month: 0 -
This data set represents predicted nitrate concentration in ground water used for drinking, in milligrams per liter, in the conterminous United States, and was generated by a national nonlinear...
Search relevance: 34.27 | Views last month: 0 -
The U.S. Geological Survey (USGS), in cooperation with the U.S. Department of Agriculture Natural Resources Conservation Service (USDA NRCS) has collected discrete stream samples for analysis of...
Search relevance: 33.40 | Views last month: 0 -
This data set represents the area of National Resources Inventory surface drainage, field ditch conservation practice, in square kilometers, in the conterminous United States. The data set was...
Search relevance: 32.75 | Views last month: 0 -
This data set represents the presence or absence of poorly sorted glacial till east of the Rocky Mountains in the conterminous United States. The data set was used as an input data layer for a...
Search relevance: 32.08 | Views last month: 0 -
This data set represents the percent of woody wetlands and emergent herbaceous wetlands land cover in the conterminous United States. The data set was used as an input data layer for a...
Search relevance: 32.08 | Views last month: 0 -
This data set represents the average annual nitrogen input from confined animal manure, 1992 and 1997, in kilograms per hectare, in the conterminous United States. The data set was used as an...
Search relevance: 32.08 | Views last month: 0
