Learn the Issues

This page shows all of the pages at www.epa.gov that are tagged with Learn the Issues.

  • Why must radon be vented into the air above my home's roof?

    Radon gas is approximately 7.5 times heavier than air. It is however a noble gas with no chemical affinity but is easily influenced by air movements and pressure. In a house with forced air heating and cooling, radon gas can easily be distributed throughout the entire dwelling. When radon gas…

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  • What about the NPR Story on Radon?

    We have always said that smoking is a significant factor in radon-related lung cancer deaths All of the 21,000 radon-related lung cancer deaths per year are attributable to radon exposure, even for smokers. Even if we ignored the smokers who get radon-induced lung cancer, 3,000 non-smokers die from radon exposure…

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  • WaterTA Engineering Support

    EPA's Water Technical Assistance (WaterTA) Engineering Support Services can provide communities with the engineering expertise needed to apply for EPA funding for water infrastructure projects.

  • Should I test the soil for radon before building?

    This answer is covered in our publication, Building Radon Out (PDF) - on page 22 to determine if you need to test the soil before building. Soil testing for radon is not recommended for determining whether a house should be built radon-resistant. Although soil testing can be done, it cannot…

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  • Radon-Resistant Construction Basics and Techniques

    By building radon-resistant new homes, builders and contractors help reduce buyers’ risk of lung cancer from exposure to radon in indoor air.

  • What is the radon hotline?

    If you have further questions about Radon, please call your State Radon Contact . The EPA supports the following hotlines to best serve consumers with radon-related questions and concerns. 1-800-SOS-RADON (767-7236)* Purchase radon test kits by phone. 1-800-55RADON (557-2366)* Get live help for your radon questions. 1-800-644-6999* Radon Fit-It Fix-It…

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  • Radon Frequently Asked Questions

    Frequently Asked Questions Asthma FAQs Indoor Air Quality (IAQ) FAQs Indoor AirPlus FAQs IAQ in Schools FAQs Mold FAQs Search Frequent Questions for answers to the most common questions or send a question to our customer care team. Radon What is radon? Where does radon come from? How does radon…

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  • Marine Protection Permitting

    The EPA implements the Marine Protection, Research and Sanctuaries Act to safeguard the ocean by preventing or limiting the disposition of any material into ocean waters that would adversely affect human health or the marine environment.

  • Indoor AirPlus

    The Indoor AirPlus Program is a partnership among EPA, builders, raters, utilities, and public health and indoor environmental organizations to improve indoor air in new homes green homes.

  • Become an Indoor airPLUS Verifier

    With the Indoor airPLUS Program, 3rd-party verifiers help ensure that EPA's high standards, based on leading building science, are applied by the builder during home design and construction to meet the Indoor airPLUS Construction Specifications.

  • Managing Radon in Schools

    EPA recommends testing all schools for radon. As part of an effective IAQ management program, schools can take simple steps to test for radon and reduce risks to occupants if high radon levels are found.

  • Indoor Environmental Contaminants in Schools

    A wide range of environmental contaminants can affect the health and safety of a school environment. This page covers the basics on issues your school may face, including asbestos, chemicals, formaldehyde, lead, mercury, PCBs and radon.

  • How Does Indoor Air Quality Impact Student Health and Academic Performance?

    Academic performance is the measure of school quality, and school districts are always looking for ways to improve their performance.

  • Coordinator's Guide for Indoor Air Quality: Section 3

    IAQ Tools for Schools Action Kit - IAQ Coordinator's Guide. This guidance is designed to present practical and often low-cost actions you can take to identify and address existing or potential air quality problems.

  • Coordinator's Guide for Indoor Air Quality: Appendix A

    IAQ Tools for Schools Action Kit - IAQ Coordinator's Guide. This guidance is designed to present practical and often low-cost actions you can take to identify and address existing or potential air quality problems.

  • Coordinator's Guide for Indoor Air Quality: Appendix B

    IAQ Tools for Schools Action Kit - IAQ Coordinator's Guide. This guidance is designed to present practical and often low-cost actions you can take to identify and address existing or potential air quality problems.

  • Take Action to Improve Indoor Air Quality in Schools

    Links for parents, students, teachers, and other school officials to use to better indoor air quality in schools.

  • School Officials and Healthy Indoor School Environments

    School officials interact with all members of the school community, including building staff, administrative staff, teachers, students, parents, local government officials and many others.

  • Coordinator's Guide for Indoor Air Quality: Section 2

    IAQ Tools for Schools Action Kit - IAQ Coordinator's Guide. This guidance is designed to present practical and often low-cost actions you can take to identify and address existing or potential air quality problems.

  • What is a HEPA filter?

    HEPA is a type of pleated mechanical air filter. It is an acronym for " high efficiency particulate air [filter]" (as officially defined by the U.S. Dept. of Energy). This type of air filter can theoretically remove at least 99.97% of dust, pollen, mold, bacteria, and any airborne particles with…

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