Science & Technology
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Safer Chemicals Research
EPA's Chemical Safety research protects human health and the environment by evaluating chemicals for potential risk and providing tools and guidance for improved chemical production that supports a sustainable environment.
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Region 6: Risk Assessment Contacts
Region 6 public points of contact, resources, and research publication on risk assessment.
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Region 5: Risk Assessment Contacts
Region 5 public points of contact, resources, and research publication on risk assessment.
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About Risk Assessment
This is the about risk assessment page covering an overview to commonly asked questions, history, contacts for help and related links.
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References
Risk assessment references
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ECO Update and Ground Water Forum Issue Paper
Currently, there is a common perception that the discharge of contaminated ground-water to a surface-water body does not pose an ecological risk if contaminant concentrations
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Regional Urban Background Study
This study identifies cities in the Southeast Region states for which urban soil background sampling has been completed as part of the Urban Background study in the EPA Region 4 states.
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Where You Live: Risk Assessment
Where you live page shows visitors to the risk assessment website how to contact their local regional office by state. Since these link to pages maintained by the local offices they will have the most up-to-date contact information.
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Appendix C: List of Registered Observers
Report on the Peer Consultation Workshop to Discuss a Proposed Protocol to Assess Asbestos-Related Risk - Appendix C, List of Registered Observers
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Risk Assessment: EPA Risk Characterization Program, March 15, 1995
EPA has achieved significant pollution reduction over the past 20 years, but the challenges we face now are very different from those of the past.
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Appendix B-1 Size Distribution Data Matched to Epidemiology Studies
Spreadsheet Tool and Data Sets for Selecting the Best TEM Data Match to an Epidemiological Workplace
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Assessing Risks to populations at Superfund and RCRA Sites Characterizing Effects on Populations
In July 2000, ORD's Ecological Risk Assessment Support Center received a request from the Ecological Risk Assessment Forum (ERAF)
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2011 Version 6.3 Technical Support Document
This TSD describes how the emission inventories were prepared for air quality modeling for the years 2011, 2017, and 2025 using the 2011, version 6.2 emissions modeling platform, which is based on the 2011 National Emissions Inventory, Version 3
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Biogenic Emissions Landuse Database, Version 3 (BELD3)
BELD3 data provides distributions of 2030 vegetation classes at 1-km resolution over most of North America. These data are used by SMOKE to develop estimates of emissions from biogenic sources.
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Sargassum Inundation Events (SIEs)
Sargassum Inundation Events - What is Sargassum?
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EPA’s Study of Potential Impacts of Hydraulic Fracturing on Drinking Water Resources: Wastewater Source Apportionment Project
EPA scientists evaluated sources of bromide and other inorganic pollutants impacting drinking water intakes on the Allegheny River in Pennsylvania to examine the potential impacts related to the treatment and disposal of oil & gas well produced wastewater.
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Review of Well Operator Files for Hydraulically Fractured Oil and Gas Production Wells: Hydraulic Fracturing Operations
EPA conducted a survey of oil and gas production wells hydraulically fractured by nine oil and gas service companies in the United States during 2009 and 2010. This is the second well file review report.
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About the Study
Overview of Hydraulic Fracturing Water Cycle and Research Approaches.
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Review of Well Operator Files for Hydraulically Fractured Oil and Gas Production Wells: Well Design and Construction Fact Sheet
EPA reviewed a statistically representative sample of oil and gas production wells reported by nine service companies to help understand the role of well design and construction practices preventing pathways for subsurface fluid movement.