Found 214 datasets matching filters. (clear all filters)
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The Walkability Index dataset characterizes every Census 2019 block group in the U.S. based on its relative walkability. Walkability depends upon characteristics of the built environment that...
Search relevance: 1.00 | Views last month: 180 | Catalog Last Checked: May 06, 2026 at 12:31 AM -
This web service layer, Ozone 8-hr (2015 standard), displays identified state level areas where ground-level ozone have not met the National Ambient Air Quality Standards (NAAQS) established in...
Search relevance: 1.00 | Views last month: 114 | Catalog Last Checked: May 06, 2026 at 12:32 AM -
This U.S. Geological Survey data release contains datasets that combine past data with future projections of nitrogen sources and nitrogen export to the Chesapeake Bay watershed for the years...
Search relevance: 1.00 | Views last month: 35 | Catalog Last Checked: May 05, 2026 at 08:22 PM -
This EnviroAtlas web service supports research and online mapping activities related to EnviroAtlas (https://www.epa.gov/enviroatlas). This web service includes layers depicting EnviroAtlas...
Search relevance: 1.00 | Views last month: 20 | Catalog Last Checked: May 06, 2026 at 12:11 AM -
Nitrogen, phosphorus, and suspended-sediment loads, and changes in loads, in rivers across the Chesapeake Bay watershed have been calculated using monitoring data from the Chesapeake Bay Nontidal...
Search relevance: 1.00 | Views last month: 19 | Catalog Last Checked: May 05, 2026 at 09:36 PM -
Nitrogen, phosphorus, and suspended-sediment loads, and changes in loads, in major rivers across the Chesapeake Bay watershed have been calculated using monitoring data from the Chesapeake Bay...
Search relevance: 1.00 | Views last month: 19 | Catalog Last Checked: May 05, 2026 at 07:34 PM -
Nitrogen, phosphorus, and suspended-sediment loads, and changes in loads, in rivers across the Chesapeake Bay watershed have been calculated using monitoring data from the Chesapeake Bay Nontidal...
Search relevance: 1.00 | Views last month: 18 | Catalog Last Checked: May 05, 2026 at 09:22 PM -
This web service depicts nearly 17,000 neighborhood boundaries in over 650 U.S. cities. Zillow created the neighborhood boundaries and is sharing them with the public under a Creative Commons...
Search relevance: 1.00 | Views last month: 17 | Catalog Last Checked: May 06, 2026 at 12:33 AM -
Nitrogen, phosphorus, and suspended-sediment loads, and changes in loads, in rivers across the Chesapeake Bay watershed have been calculated using monitoring data from the Chesapeake Bay Nontidal...
Search relevance: 1.00 | Views last month: 17 | Catalog Last Checked: May 05, 2026 at 08:29 PM -
Nitrogen, phosphorus, and suspended-sediment loads, and changes in loads, in major rivers across the Chesapeake Bay watershed have been calculated using monitoring data from the Chesapeake Bay...
Search relevance: 1.00 | Views last month: 15 | Catalog Last Checked: May 05, 2026 at 07:28 PM -
Implementation of conservation tillage and cover crops in the Chesapeake Bay watershed, 1985 to 2012
Conservation tillage practices and cover crops are used throughout the Chesapeake Bay watershed to reduce soil loss and improve water quality. Implementation of these Best Management Practices...
Search relevance: 1.00 | Views last month: 12 | Catalog Last Checked: May 05, 2026 at 09:24 PM -
Nitrogen, phosphorus, and suspended-sediment loads, and changes in loads, in major rivers across the Chesapeake Bay watershed have been calculated using monitoring data from the Chesapeake Bay...
Search relevance: 1.00 | Views last month: 11 | Catalog Last Checked: May 05, 2026 at 09:36 PM -
This metadata record documents 3 sets of comma delimited tables representing the amount of reported best management practice (BMP) implementation within the Chesapeake Bay watershed as well as...
Search relevance: 1.00 | Views last month: 11 | Catalog Last Checked: May 05, 2026 at 09:54 PM -
This metadata record documents a comma-delimited table representing scenario output from the Chesapeake Bay Program Phase 5.3.2 Watershed Model. The annual effect of best management practices...
Search relevance: 1.00 | Views last month: 10 | Catalog Last Checked: May 05, 2026 at 09:55 PM -
Nitrogen, phosphorus, and suspended-sediment loads, and changes in loads, in major rivers across the Chesapeake Bay watershed have been calculated using monitoring data from the Chesapeake Bay...
Search relevance: 1.00 | Views last month: 10 | Catalog Last Checked: May 05, 2026 at 08:51 PM -
This metadata record documents 2 comma delimited tables representing output from the Chesapeake Bay Program Phase 5.3.2 Watershed Model. The effect of best management practices (BMP) in 2014 in...
Search relevance: 1.00 | Views last month: 10 | Catalog Last Checked: May 05, 2026 at 08:12 PM -
Nitrogen, phosphorus, and suspended-sediment loads, and changes in loads, in major rivers across the Chesapeake Bay watershed have been calculated using monitoring data from the Chesapeake Bay...
Search relevance: 1.00 | Views last month: 9 | Catalog Last Checked: May 05, 2026 at 08:56 PM -
Nitrogen, phosphorus, and suspended-sediment loads, and changes in loads, in major rivers across the Chesapeake Bay watershed have been calculated using monitoring data from the Chesapeake Bay...
Search relevance: 1.00 | Views last month: 9 | Catalog Last Checked: May 05, 2026 at 08:06 PM -
This web service layer, Carbon Monoxide (1990 NAAQS), displays identified state level areas where carbon monoxide pollution has not met the National Ambient Air Quality Standards (NAAQS)...
Search relevance: 1.00 | Views last month: 9 | Catalog Last Checked: May 06, 2026 at 12:32 AM -
This metadata record documents 11 comma delimited tables representing the amount of reported best management practice (BMP) implementation for the years from 1985 to 2014 at three geographic...
Search relevance: 1.00 | Views last month: 8 | Catalog Last Checked: May 05, 2026 at 08:35 PM
