Welcome to EasyRSEI, where you can access results and data from EPA's Risk-Screening Environmental Indicators (RSEI) model, Version 2.3.9.
RSEI Scores add context to chemical release data reported by facilities to the Toxics Release Inventory (TRI) by considering the size of the chemical release, the fate and transport of the chemical through the environment, the size and location of the exposed population, and the chemical's toxicity. RSEI Scores are available for modeled releases and transfers (air releases, water releases, and transfers to POTWs and off-site incineration). RSEI Scores combine toxicity information for both cancer and noncancer effects. RSEI Score-Cancer and RSEI Score-Noncancer are also provided so users can examine those effects separately.
Hazard values consider the size of the release and the chemical toxicity. RSEI Modeled Hazard can be calculated for modeled releases and transfers, and RSEI Hazard is calculated for all releases and transfers reported to TRI, including those not modeled by RSEI, such as land releases and off-site transfers to disposal or recycling.
RSEI Modeled Pounds includes pounds reported to modeled media only (air releases, water releases, and transfers to POTWs and off-site incineration). TRI Pounds includes pounds reported to all media, whether or not they are modeled by RSEI.
This page includes an overview of the national RSEI trends, as described in the TRI National Analysis.How to Use RSEI Results
RSEI does not provide a risk assessment, so it is inappropriate to use it to:
- Conclude that a particular chemical release is causing harm to a specific population or location,
- Draw conclusions or make decisions about the risk posed by any particular facility, or
- Draw conclusions about individual risk or generate quantitative risk estimates.
High RSEI Scores (relative to other RSEI Scores) can be used to identify areas that may warrant further investigation. High RSEI Scores do not conclusively demonstrate sources of risk. If a facility receives a high RSEI Score, it does not necessarily mean that the facility is harming people around it, or that the facility is not following applicable laws and regulations. If your community, or a facility in your community, has high RSEI Scores, you could use that information to help you decide if and what kind of further investigation is warranted.
For more information:
Use the icon at the top right to filter your selection by EPA Region, State, Year, Industry, or Chemical, or to change the display value from RSEI Score to RSEI Cancer Score, RSEI Noncancer Score, or RSEI Modeled Hazard.
This page provides a national overview. All pages except for this one are dynamic - any filters you apply will be shown at the top of the screen and will apply to all of the other charts and tables. Use the links on the left to navigate through the other pages of the application.
RSEI National Trend, 2007-2019