What are EPA RSLs?
The RSL website is now the source of screening levels for all the EPA regions. The RSL tables provide comparison values for residential and commercial/industrial exposures to soil, air, and tapwater (drinking water). The unified use of the RSLs, to screen chemicals at Superfund sites, promotes national consistency.
What is screening region?
The Regional Screening Levels (RSL) can be described as risk-based concentrations derived from standardized equations combining exposure information assumptions with EPA toxicity data (United States Environmental Protection Agency, 2020).
What United States Agency can give up preliminary information on soil properties?
United States Environmental Protection Agency.
What are soil screening levels?
Soil screening levels (SSLs) are reference threshold values required by environmental laws, established based on soil geochemical background data from often-extensive sampling areas.
What is screening level?
Screening values, intended to be protective of human health and/or the environment, are often defined as chemical concentrations in environmental media below which no additional regulatory attention is warranted.
What is an example of a screening test?
Examples of Screening Tests: Pap smear, mammogram, clinical breast exam, blood pressure determination, cholesterol level, eye examination/vision test, and urinalysis.
What is a safe level of arsenic in soil?
For soils, federal EPA guidelines for standards of concern begin at 390 ppb, or 0.39 parts per million (ppm).
What are the 10 regions in EPA?
EPA also conducts work in 10 regional offices headquartered in Boston, New York, Philadelphia, Atlanta, Chicago, Dallas, Kansas City, Denver, San Francisco, and Seattle. EPA labs are scattered across the country and address a wide range of research activity.
What is the main mission of the EPA?
The mission of EPA is to protect human health and the environment.
What is a screening level risk assessment?
A screening level risk assessment model is developed and described to assess and prioritize chemicals by estimating environmental fate and transport, bioaccumulation, and exposure to humans and wildlife for a unit emission rate.
What are the regional screening levels for Region 9?
The Region 9 PRGs have been harmonized with similar risk-based screening levels used by Regions 3 and 6 into a single table: “Regional Screening Levels (RSL) for Chemical Contaminants at Superfund Sites.”
Where can I find EPA regional screening levels?
This website was developed with DOE’s Oak Ridge National Laboratory (ORNL) under an Interagency Agreement as a merger of the EPA Region 3 RBC Table, Region 6 HHMSSL Table and the Region 9 PRG Table. The RSL website is now the source of screening levels for all the EPA regions.
What are the regional screening levels for Superfund sites?
Welcome to the “Regional Screening Levels for Chemical Contaminants at Superfund Sites” screening level/preliminary remediation goal website. This website was developed with DOE’s Oak Ridge National Laboratory (ORNL) under an Interagency Agreement as a merger of the EPA Region 3 RBC Table, Region 6 HHMSSL Table and the Region 9 PRG Table.