Science & Technology
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Xeric Ecoregion - National Lakes Assessment Results
NLA 2012 Results for the Xeric ecoregion
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Temperate Plains Ecoregion - National Lakes Assessment Results
NLA 2012 Results for the Temperate Plains ecoregion
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Southern Plains Ecoregion - National Lakes Assessment Results
NLA 2012 Results for the Southern Plains ecoregion
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Southern Appalachians Ecoregion - National Lakes Assessment Results
NLA 2012 Results for the Southern Appalachians ecoregion
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Northern Plains Ecoregion - National Lakes Assessment Results
NLA 2012 Results for the Northern Plains ecoregion
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Northern Appalachians Ecoregion - National Lakes Assessment Results
NLA 2012 Results for the Northern Appalachians ecoregion
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Coastal Plains Ecoregion - National Lakes Assessment Results
NLA 2012 Results for the Coastal Plains ecoregion
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Ecoregional Results - National Lakes Assessment 2022
Results for the National Lakes Assessment 2012, including key findings, national results, ecoregional results, and state highlights.
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Reports and Data - National Lakes Assessment 2022
Products from the national lakes assessment 2017 including report, technical report, factsheet, data files, and data dashboard
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What is the National Lakes Assessment?
The National Lakes Assessment is a collaborative, statistical survey of the nation's lakes. It is one of four national surveys that EPA and its partners conduct to assess the condition and health of the nation's water resources.
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Data Download
Download EnviroAtlas National and Community datasets.
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WATERS GeoViewer Tutorial
The content and purpose of each mapping service WATERS exposes.
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2019 AirToxScreen: Assessment Results
Downloadable results files related to the 2019 AirToxScreen assessment.
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2018 AirToxScreen: Assessment Results
Downloadable data files related to the 2018 AirToxScreen
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2017 AirToxScreen: Assessment Results
Downloadable data files related to the 2017 AirToxScreen
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KABAM Version 1.0 User's Guide and Technical Documentation - Appendix F -Description of Equations Used to Calculate the BCF, BAF, BMF, and BSAF Values
Describes equations for bioconcentration, bioaccumulation, biomagnification and biota-sediment accumulation factors used in KABAM V1.0. KABAM is a simulation model used to predict pesticide concentrations in aquatic regions for use in exposure assessments.
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Occurrence of contaminants of emerging concern (CECs) in the South Platte
The widespread occurrence of natural and synthetic organic chemicals in surface waters can cause ecological risks and human health concerns.
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Mold Exposure and Respiratory Conditions in Young Children
A list of tools a and databases available online to support children’s health protective decisions.
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Heat and Teenage Athletes
A list of tools a and databases available online to support children’s health protective decisions.
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End-of-Life Solar Panels: Regulations and Management
When solar panels, which typically have a 25-30 year lifespan, reach the end of their lives and become waste, they must be managed safely. Learn about this renewable energy waste, different types of solar panels and how they are regulated.