• Organization: Department of the Interior
• Updated: 2020-08-20T00:00:00Z

Natural land cover can remove pollutants from runoff water by slowing water flow and physically trapping suspended particles. We identified natural land cover in the Southeast US potentially...

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• Organization: Department of the Interior
• Updated: 2020-11-17T00:00:00Z

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)...

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• Organization: U.S. Environmental Protection Agency
• Updated: 2021-04-08

The manuscript assembled data from existing sources (summarized below) to assess water quality improvements in three estuaries (Peconic Estuary (NY), Roberts Bay (FL), and Newport Bay (CA)...

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• Organization: U.S. Environmental Protection Agency
• Updated: 2023-03-24

The spatial data and metadata are in a Geopackage geodatabase accessible through the open-source geographic information system QGIS, and through R, the open-source statistical computing and...

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• Organization: Department of the Interior
• Updated: 2023-02-17T00:00:00Z

Natural land cover can remove pollutants from runoff water by slowing water flow and physically trapping suspended particles. We identified natural land cover in the Southeast US potentially...

• xml
• xml

• Organization: U.S. Environmental Protection Agency
• Updated: 2023-12-01

These datasets allow users to acquire necessary input data to replication Zhang et al. (2023) and also review the model output results. This dataset is associated with the following...

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• Organization: National Oceanic and Atmospheric Administration, Department of Commerce
• Updated: 2006-08-08T00:00:00.000+00:00

The data results show for the first time Landsat-based land use maps of both the terrestrial and benthic habitats of the U. S. Virgin Islands, spanning a period of 16 years (1985 to 2001)....

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• Organization: National Oceanic and Atmospheric Administration, Department of Commerce
• Updated: 2024-02-29T00:00:00.000+00:00

Stretching 15 miles inland, New Hampshire’s Great Bay cuts through the heart of one of the state’s most densely populated regions. Nitrogen concentrations in the bay have increased significantly,...

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• Organization: Department of the Interior
• Updated: 2022-10-31T00:00:00Z

In this data release, we provide the data used to compute total annual phosphorus loads from tributaries and direct drainages to the Great Lakes during 2012-18 using the model load ratio approach...

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• Organization: District of Columbia
• Updated: 2023-04-28T00:00:00.000Z

NEI point sources include emissions estimates for larger sources that are located at a fixed, stationary location. Point sources in the NEI include large industrial facilities and electric power...

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• json
• kml
• zip
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• Organization: U.S. Environmental Protection Agency
• Updated: 2016-04-11T00:00:00.000+00:00

This web service contains layers that depict annual emissions for 2014 at the facility and county level for the following criterial pollutants: CO, Lead, NH3, NOx, PM10, PM25, SO2, and VOC. The...

• Organization: U.S. Environmental Protection Agency
• Updated: 2017-03-02T00:00:00.000+00:00

This US EPA Office of Air and Radiation, Office of Air Quality Planning and Standards, Air Quality Assessment Division, Air Quality Analysis Group (OAR, OAQPS, AQAD, AQAG) web service contains the...

• Organization: National Oceanic and Atmospheric Administration, Department of Commerce
• Updated: 2004-01-01T00:00:00.000+00:00

The Waianae Ecological Characterization is a digital synthesis of historical and current physical, ecological, and cultural information about the Waianae moku, which is located on the leeward...

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• Organization: U.S. Environmental Protection Agency
• Updated: 2017-03-02T00:00:00.000+00:00

This US EPA Office of Air and Radiation, Office of Air Quality Planning and Standards, Air Quality Assessment Division, Air Quality Analysis Group (OAR, OAQPS, AQAD, AQAG) web service contains the...

• Organization: Department of the Interior
• Updated: 2023-05-18T00:00:00Z

A one-dimensional surface-water quality model of the central Salem River Basin, New Jersey was developed to examine the causes of eutrophication and predict the effects of reduced point and...

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• Organization: U.S. Environmental Protection Agency
• Updated: 2014-01-01

The Grants Reporting and Tracking System (GRTS) is the primary tool for management and oversight of EPA's Nonpoint Source (NPS) Pollution Control Program. GRTS pulls grant information from EPA's...

• Organization: Department of the Interior
• Updated: 2020-08-27T00:00:00Z

To better understand the influence of human activities and natural processes on surface-water quality, the U.S. Geological Survey (USGS) developed the SPARROW (SPAtially Referenced Regressions On...

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• xml

• Organization: National Oceanic and Atmospheric Administration, Department of Commerce
• Updated: 2020-03-29T00:00:00.000+00:00

This dataset focuses on studies of water quality in the Ala Wai Canal in order to determine its role of point and non point source disharge into Mamala Bay. The Pollutant Source Identification...

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• Organization: National Oceanic and Atmospheric Administration, Department of Commerce
• Updated: 2017-09-01T00:00:00.000+00:00

This project will enhance stakeholder capacity to make informed decisions on the protection and restoration of buffers around the Great Bay Estuary by addressing the following question: What are...

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• Organization: Department of the Interior
• Updated: 2020-09-02T00:00:00Z

This dataset describes the quantity, morphology, concentration and polymer identity of microplastics in surficial benthic sediment of Lake Michigan and Lake Erie. Lake Michigan sediment samples...

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• xml