Cleaner Air, Cleaner Bay by Chesapeake Bay Program

Actions by the U.S. Environmental Protection Agency (EPA) and its state partners have led to significant reductions in airborne nitrogen, a major source of pollution that impacts the land and water in and around the Chesapeake Bay. Ecological health studies of the Bay have helped identify air pollution, specifically from nitrogen oxide (NOx) and ammonia […]

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OAQPS Interactive Story Maps around Ground – Level Ozone Standard

On October 1, 2015, the U.S. Environmental Protection Agency strengthened the National Ambient Air Quality Standards for ground-level ozone to 70 parts per billion, based on extensive scientific evidence about ozone’s effects on public health and welfare. The updated standards will improve public health protection, particularly for at-risk groups including children, older adults, people of […]

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OW Urban Waters Small Grants Mapping Application

This map shows Urban Water Small Grant Eligible Geographic Areas. The Eligible Geographic Areas are based on the U.S. Census-defined Urbanized Areas and the 12-digit hydrologic unit code system (HUC-12) that defines the watershed. The HUC system is a national standard watershed system based on surface hydrologic features and delineated by the U.S. Geological Survey.

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Storm Surge Inundation and Hurricane Frequency Map

This map illustrates hurricane strike frequency and worst-case coastal storm surge or inundation scenarios derived from the: National Hurricane Center’s hurricane strike dataset Federal Emergency Management Agency’s 100-year and 500-year flood plains National Oceanic and Atmospheric Administration’s Sea, Lake, and Overland Surge from Hurricanes (SLOSH) model

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ARD Region 5 Storymap

This assessment is intended to provide state and local agencies with information on whether their monitoring networks still meet the monitoring objectives, whether new sites are needed, whether existing sites are no longer needed, and whether new technologies are appropriate, as required by 40 CFR Part 58.10(d).

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