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Alphabetical Index

  • Asbestos
    Asbestos is a mineral fiber regulated under a special area of the Toxic Substances Control Act (TSCA). It has been determined that breathing high levels of asbestos fibers can lead to an increased risk of lung cancer. This site includes regulations, guidance, health information and general information.

  • Aquatox
    A computer program to perform ecological risk assessment modeling developed to project the combined environmental fate and effects of pollutants in aquatic ecosystems.

  • The Baltimore Case Study
    The Baltimore Case Study report describes the work and results of the 3-year air screening pilot project in Baltimore, Maryland. It illustrates the development and implementation of a new methodology for evaluating air quality impacts of toxic air pollutant emissions. The risk screening methodology allowed the partnership to evaluate potential human health risks from more than 175 chemicals emitted to the air by more than 125 facilities in and around the partnership neighborhoods. The case study presents the process used as well as the results and lessons learned from the experience.

  • Expert System (Oncologic)
    The Expert System, or Oncologic, is a personal computer program developed to analyze chemical structures to determine the likelihood that they may cause cancer.

  • ChemSTEER
    The Chemical Screening Tool for Exposures and Environmental Releases (ChemSTEER) is a personal computer-based software program. ChemSTEER uses established EPA methods to generate screening-level estimates of environmental releases of and worker exposures to chemicals manufactured and used in industrial and commercial operations. The tool also contains data and estimation methods to assess situations involving many common industrial / commercial sectors (e.g., automotive refinishing) and chemical functional uses (e.g., surfactant in hard surface cleaner). ChemSTEER is currently applied in EPA's New Chemicals Program. In the future, engineers and technical users may find the tool helpful in assessing exposures and releases from workplaces.

  • Community Air Screening How-To Manual
    OPPT's Community Community Air Screening How-to Manual makes air quality assessment tools more accessible to communities. The How-to Manual presents and explains a step-by-step process that a community can follow to form partnerships to access technical expertise, identify and inventory local sources of air pollutants, review pollutant sources to identify known hazards that may present a potential health risk to the community and set priorities and develop plans for improvement.
  • Community Health Status Indicators Project Exit Disclaimer
    The Community Health Status Indicators (CHSI) Project was launched in response to grassroots requests from local health officials for health data at the local level. Community health improvement begins with an assessment of needs, quantification of vulnerable populations, and measurement of preventable disease, disability, and death. In one brief document, local health officials can see, react, and act upon the data provided.

  • Consumer Labeling Initiative (CLI)
    CLI is a voluntary, cooperative partnership among federal, state, and local government agencies, industry, and other interested groups working to improve product labels on indoor insecticides, outdoor pesticides, and household hard surface cleaners. Find out about the label changes and the implementation of the National Read the Label FIRST! campaign to encourage the reading of product labels.

  • Design for Environment
    DfE is a voluntary program that works with industry and other partners to integrate health and environmental considerations in business decisions. DfE partnerships compare the risks, performance, and costs of alternative technologies, and encourage businesses to adopt cleaner technologies and pollution prevention practices.

  • E-FAST
    The Exposure & Fate Assessment Screening Tool (E-FAST) is a personal computer based software program. E-FAST is a screening level tool that estimates human exposure as well as aquatic ecosystem exposure to and risk from the release of chemicals to the environment.

    E-FAST can be used by community groups to estimate exposure and risk from such areas as industrial/commercial activities and the use and disposal of consumer products.

  • Endocrine Disruptors
    This web site provides information about the endocrine system and why certain chemicals can affect it, how the EPA Endocrine Disruptor Screening Program was developed, and the current status of EPA's implementation activities.

  • Environmentally Preferable Purchasing Program
    The Environmentally Preferable Purchasing (EPP) web site provides guidance, case studies, tools and other resources to help in procuring environmentally preferable products and services that have lesser or reduced effects on human health and the environment when compared to others serving the same purpose.

  • FOSTTA (Forum on State and Tribal Toxics Action)Exit Disclaimer
    The Environmental Council of the States (ECOS), in cooperation with the National Tribal Environmental Council (NTEC), and EPA's Office of Pollution Prevention and Toxics (OPPT) are co-sponsoring the meetings of the Forum on State and Tribal Toxics Action (FOSTTA). FOSTTA (Forum on State and Tribal Toxics Action) is a mechanism by which state and tribal officials jointly, and in cooperation with EPA, address toxics-related issues. The Forum is designed to foster and improve communication and coordination among states, tribes, and EPA.

  • Internet Geographical Exposure Modeling System/Chemical Safety Mapper (IGEMS/CSM)
    The new GEMS is a modernization of OPPT's older Graphical Exposure Modeling System and PCGEMS tools. GEMS brings together in one system several EPA environmental fate and transport models and the environmental data needed to run them. GEMS includes models and data for ambient air, surface water, soil, and ground water, and makes the models much easier to use than their stand-alone counterparts. The GEMS models estimate environmental concentrations that can be used by communities or environmental groups in exposure and risk assessments for local populations.

    With enhanced GIS capability, the IGEMS/CSM models estimate environmental concentrations that can be used by communities or environmental groups in exposure and risk assessments for local populations.

  • Housing and Urban Development's Healthy Communities Environmental Mapping Exit Disclaimer
    Healthy Communities Environmental Mapping - HUD E-MAPS - is a free Internet service that combines information on HUD's community development and housing programs with EPA's environmental data.

  • HPV Challenge Program This voluntary program was designed to ensure that the American public has access to basic health and environmental effects data for those chemicals which are produced in the highest volumes in the United States. The HPV Program Chemical List contains about 2,800 chemicals that have been manufactured in or imported into the United States in amounts equal to or greater than one million pounds per year.

  • Lead Programs
    These pages are designed to give you access to information on all aspects of the Federal lead poisoning prevention program, with a special focus on the efforts within EPA's Office of Pollution Prevention and Toxics (OPPT).

  • The National-Scale Air Toxics Assessment
    The National-Scale Air Toxics Assessment is designed to help EPA, state, local and tribal governments and the public to better understand the air toxics problem in the U.S. The assessment includes four steps which focus on 1996 emissions.

  • NEJAC Health and Research Subcommittee
    The NEJAC Health and Research Subcommittee promotes cooperative and supportive relationships aimed at ensuring environmental justice in health and research activities. It also advocates community education and training as a means to involve communities in solving environmental problems within their communities.

  • OPPT Chemical Fact Sheets and Support Documents
    Each fact sheet provides a brief summary of information on a chemical, including its identity, production and use, environmental fate, health and environmental effects, regulatory information, and places to contact for more information.

  • Persistent, bioaccumulative, and toxic pollutants (PBTs)
    PBTs are toxic, long-lasting substances that can build up in the food chain to levels that are harmful to human and ecosystem health. The PBT Initiative seeks to develop and implement national action plans to reduce priority PBT pollutants, utilizing the full range of EPA tools.

  • Polychlorinated Biphenyls (PCBs)
    PCBs are mixtures of synthetic organic chemicals with the same basic chemical structure and similar physical properties ranging from oily liquids to waxy solids. PCBs have been demonstrated to cause a variety of adverse health effects. This site includes regulations, guidance, PCB waste handlers information, health effects of PCBs and general information.

  • Pollution Prevention Information Clearinghouse
    The Pollution Prevention Information Clearinghouse (PPIC) is a free nonregulatory service of EPA dedicated to reducing or eliminating industrial pollutants through technological transfer, education and public awareness. The PPIC provides telephone reference and referral, distribution of EPA documents, and a collection of pollution prevention references available for interlibrary loan.

  • Risk Screening Environmental Indicators
    The RSEI model is a personal computer-based, priority setting, screening-level tool that evaluates the hazard and relative risk-related impacts of toxic chemical releases and transfers from industrial facilities. RSEI integrates information on the amount of chemicals released to the environment, the relative long-term toxicity of these chemicals to people outside the workplace, the degree to which people are potentially exposed, and the estimated size of the exposed population.

    Communities can use RSEI, in a comparative fashion, to quickly focus on certain sources of risk that warrant further investigation. The model's pounds-based, hazard-based and risk-related perspectives can be used to examine trends, to rank and prioritize chemicals and industry sectors for strategic planning, to conduct risk-related targeting, and to help investigate environmental justice issues.


  • 8(e) TRIAGE Information Database
    This is a searchable, PC-based database of scientific studies on the health and environmental effects of toxic chemicals related to Section 8(e) of TSCA, which states that manufacturers, importers, and distributors of chemical substances and mixtures are required to inform EPA of studies that reasonably support the conclusion that the chemicals present a "substantial risk of injury" to human health or the environment. It provides users with information about these studies and serves as a pointer system to the complete studies.

  • Tribal Coordinator
    The Tribal Coordinator for the Office of Pollution Prevention and Toxic, (OPPT) is responsible for the coordination of activities and programs in the Office of Pollution Prevention and Toxics that pertain to American Indian environmental concerns and issues. Maintains close contact with other Federal, State, Tribal and Other EPA offices to foster communications and to formulate programs that promote OPPT overall efforts in accordance with the Agency's Indian Policy.

  • TSCA Hotline: tsca-hotline@epa.gov
    The Toxic Substances Control Act (TSCA) Assistance Information Service (202-554-1404) provides technical assistance and information about programs to chemical manufacturers, processors, users, storers, disposers, importers, exporters, and individuals concerning regulations under TSCA.

  • Use Cluster Scoring System
    A computer-based, priority setting risk-screening system with information about nearly 3,200 chemicals and the 380 clusters -- or families -- into which these chemicals are grouped.

  • Voluntary Children's Chemical Evaluation Program
    Voluntary Childrens's Chemical Evaluation Program(VCCEP) is a voluntary testing program for chemicals with identified children's health concerns. EPA is asking companies which manufacture and/or import 23 chemicals which have been found in human tissues and the environment in various monitoring programs to volunteer to sponsor their evaluation in Tier 1 of a pilot of the VCCEP.


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