Science & Technology
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Indicators: Fish Assemblage
Fish assemblage refers to the variety and abundance of fish species in a given waterbody. Fish are sensitive indicators of physical and chemical habitat degradation, environmental contamination, migration barriers, and overall ecosystem productivity.
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Indicators: Wetland Vegetation (Introduced Species)
Introduced plants are indicators of the ecological integrity of waters and evidence of increased human-caused disturbance in the watershed. Introduced species that cause economic or environmental harm, or harm to human health, are called invasive species.
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Indicators: Wetland Vegetation (Plant Community)
Wetland vegetation specifically grows in water or is adapted to a growing in soil that is at least periodically flooded with water. These wetland plants are also referred to as “hydrophytes.”
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Indicators: Chlorophyll a
Chlorophyll allows plants (including algae) to photosynthesize, i.e., use sunlight to convert simple molecules into organic compounds. Chlorophyll a is the predominant type of chlorophyll found in green plants and algae.
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Indicators: Benthic Macroinvertebrates
Benthic (meaning “bottom-dwelling”) macroinvertebrates are small aquatic animals and the aquatic larval stages of insects. Benthic macroinvertebrates are commonly used as indicators of the biological condition of waterbodies.
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Sustainable and Healthy Communities 3.61 Contaminated Sites Posters
Posters for the Sustainable and Healthy Communities (SHC) 3.61 Contaminated Sites.
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Homeland Security Subcommittee
Membership roster for the Homeland Security Subcommittee.
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Meeting Minutes for Air, Climate, and Energy Subcommittee
These are the meeting minutes from the Air, Climate, and Energy Subcommittee meetings held in 2015.
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Chemical Safety for Sustainability BOSC Subcommittee Meeting Documents (October 6-8, 2015)
Documents for meetings of the CSS BOSC Subcommittee
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Continuous Carbonaceous Aerosol Measurements
Webpage for continuous carbon measurements and important memos and guidance.
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A Plain English Guide to the EPA Part 503 Biosolids Rule
This guidance document is not a substitute for the actual rule, but it is intended as a helpful tool for interpretation and implementation of the rule.
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Basic Information: Pathogen Equivalency Committee
Basic Information for Pathogen Equivalency Committee
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Local Greenhouse Gas Inventory Tool
Use EPA's Local Greenhouse Gas Inventory Tool to evaluate community greenhouse gas emissions and compile a local- or municipal-level GHG inventory.
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EPA EcoBox: Phases of ERA - References
Eco-Box is a toolbox for exposure assessors. Its purpose is to provide a compendium of exposure assessment and risk characterization tools that will present comprehensive step-by-step guidance and links to relevant exposure assessment data bases
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Exposure Factors Handbook Chapter 9
Exposure Factors Handbook: 2011 Edition and 2018 Update. The Exposure Factors Handbook provides information on various physiological and behavioral factors commonly used in assessing exposure to environmental chemicals.
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Region 10: Risk Assessment Contacts
Region 10 public points of contact, resources and research publications related to risk assessment.
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Notification: Audit of the Voluntary School and Child Care Lead Testing and Reduction Grant Program
Notification: Audit of the Voluntary School and Child Care Lead Testing and Reduction Grant Program
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New Approach Methods (NAMs) - Animal Use Metrics for Research and Development
This page reports metrics on animal use in research and development activities and under the Agency’s regulatory authority.
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Genesis and Study Design for EPA’s Non-Targeted Analysis Collaborative Trial (ENTACT)
Slides for presentation on EPA's Non-Targeted Analysis Collaborative Trial (ENTACT).
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Research on Evaluating Concentrations of Endocrine Disrupting Chemicals in Biosolids (Sewage Sludge)
EPA researchers are working to address some of these uncertainties by evaluating whether chemicals in biosolids degrade when biosolids are applied to agricultural soils or if the chemicals persist.