Science & Technology
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Water Research
EPA's water research provides the sustainable solutions to water resource challenges.
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Lead Service Line Replacement Program
Assist federally recognized tribes within EPA Region 9 (CA, NV, AZ) to address lead service line replacement projects and associated activities directly connected to the identification, planning, design, and replacement of lead service lines.
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Red Hill Groundwater Results Application
This application combines multiple historical and current data sets that the Navy has made available online to provide you with a simple way to view up-to date information about groundwater quality around the Red Hill Bulk Fuel Storage Facility in Hawaiʻi.
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About the California Clean Air Technology Initiative (CATI)
About the California Clean Air Technology Initiative: Aims, Members, History, and Objectives.
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Overview of Total Maximum Daily Load (TMDL) Progress Assessment
EPA assessed the progress 14 TMDLs in the SF Bay Delta Estuary (SF Bay Delta) to determine if the actions called for in the TMDL were being accomplished and water quality was improving. Status and water quality reports can be found here.
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Managing Stressors
This webpage covers information on stressors that drive coastal wetland loss and details strategies and tools for managing those stressors.
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Particle Pollution and Cardiovascular Effects
Health Effects of PM in Patients with Cardiovascular Disease
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Risk Assessment
How the EPA conducts risk assessment to protect human health and the environment. Several assessments are included with the guidelines, models, databases, state-based RSL Tables, local contacts and framework documents used to perform these assessments.
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Exploration of Aging and Toxic Response Issues: Final Report
Most physiological functions undergo deterioration with increasing adult age and this deterioration undoubtedly increases vulnerability to harmful environmental agents.
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Human Health Risk Assessment
This site will be linked off of the risk Microsite and will be where the 4 steps to HHRA, the guidelines to HHRA, links to models, tools, databases and HHRA examples.
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Conducting a Human Health Risk Assessment
This page provides the step-by-step instructions to how the EPA conducts a human health risk assessment with additional links to models, tools, databases and related products.
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Science Review of Human Study of Black Fly Repellent Performance
Conduct a science review of a completed black field study and determine the adeequacy ofthe methods employed and the scientific validity of the reported data.
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2021 Survey Methodology
Information about the 2021 survey design, data collection, and sampling.
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2021 Scientific Integrity Survey Frequent Questions
14 frequently asked questions covering our survey purpose, methods, next steps, and contact
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Chemical Safety for Sustainability Subcommittee Meeting Documents (November 16-18, 2016)
Meeting documents for the Chemical Safety for Sustainability (CSS) Subcommittee meeting on November 16-18, 2016.
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Papers Addressing Scientific Issues in the Risk Assessment of Metals
To inform the consideration of metals properties, and to engage the external scientific community, the Agency commissioned external experts to lead the development of a series of issue papers.
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Methods for Identifying a Default Cross-Species Scaling Factor (Rhomsberg, 2004)
Provides a rationale for selecting default cross-species extrapolation factors with which to scale oral doses across species for non-carcinogenic endpoints.
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Antimicrobial Exposure Assessment Task Force II (AEATF II) Volume 5: Governing Document for a Multi-Year Antimicrobial Chemical Exposure Monitoring Program (interim draft document with changes)
This document describes the overall scope of the AEATF II program, demonstrates the need for additional human exposure monitoring data and explains the proposed methodology for the exposure monitoring studies proposed for conduct by the AEATF II.
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Memorandum on Cumulative Risk Assessment Guidance - Phase I Planning and Scoping
This guidance directs each EPA office to take into account cumulative risk issues in scoping and planning major risk assessments.
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External Review Draft: Harmonization in Interspecies Extrapolation: Use of BW 3/4 as Default Method in Derivation of the Oral RfD
Recommends procedures, inclusive of default procedures, that will be used to estimate oral exposures in terms of human equivalents for all toxicologic endpoints.