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The following links were accurate and reachable when this page was last updated (January 2008). We've organized them by target audience. If you find a link that doesn't work please let us know. Also, if you know of a useful site along these lines, pass that information along, too. Note that links open in new browser windows. Close them to return here.

Links for Radon Pros

Radon Certification
The National Environmental Health Association (NEHA) administers the National Radon Proficiency Program (NRPP). The NEHA-NRPP provides lists of certified individuals and laboratories.

To use the NEHA list, go to their website and scroll down to the section "Lists of Certified Individuals". Then choose the credential that you are looking for, such as measurement, mitigation or laboratories. When asked to choose a state, you are given a list of individuals whose businesses reside in that state. If you live in a small state or near the border of a neighboring state, you may want to search another state list.
State Radon Contacts
Some states have their own radon program and they keep a list of individuals and companies that provide radon measurement and mitigation services that are not included on any of the above national list. States with some form of radon certification include: California, Connecticut, Delaware, Florida, Illinois, Indiana, Iowa, Kentucky, Maine, Nebraska, New Jersey, New York, Ohio, Pennsylvania, Rhode Island, Virginia, West Virginia, and the District of Columbia.

Some also offer help in the form of free or very low cost test devices. Be sure to check with your's to make sure you don't miss out on these taxpayer supported programs.

You can read, print, or download any of the US EPA's (10+)Radon Publications
They also maintain a radon page with dozens of resource links and listings.
U.S. EPA's Radon Home Page
AARST Website
The American Association of Radon Scientists and Technologists (AARST) is a nonprofit, professional organization of members who are dedicated to the highest standard of excellence and ethical performance of radon measurement, mitigation and transfer of information for the benefit of members, consumers and the public at large.
HomeGauge Home Inspection Software
Home inspectors can integrate AirChek radon testing with HomeGauge Home Inspection Software.

For Students or the general public

SOS Radon - National Radon Program Services site
This site has additional radon testing information and links. They also operate the US EPA's 800-SOS-RADON Hot-line.
The National Institutes of Health Q & A on Radon & Cancer
This page answers the most common questions about radon gas exposure and cancer.
Radiation and Health Physics Home Page
Nicely laid out and considered site giving a scientific perspective on the dangers of radon. An excellent resource for answers to all sorts of questions about radiation, in general.
Periodic Table: Radon
This site contains information very helpful for students looking for elemental facts about radon such as the atomic structure, a sketch of the electron configuration, a list of several radon isotopes and more.
Radioactive Decay Chart
An easy to read chart showing the decay chain from urainum to non-radioactive lead.
RADON - From Wikipedia
From Wikipedia, the free encyclopedia.
Read about radon's physical and atomic properties, characteristics, applications, history, occurrence, and more.
A good starting point for high school research projects.
The Radiation Information Network
This site is an excellent source of information about all types of radiation. It covers the most basic concepts explaining radioactive transformation and provides answers to some of your most complex questions.
The Agency for Health Care Policy and Research
Their web site provides practical health care information, research findings, and data to help consumers, health providers, health insurers, researchers, and policymakers make informed decisions about health care issues.
The National Science Foundation
Their web site is loaded with other types of scientific information that may be useful to students, faculty, and other interested parties.
RadonSeal concrete sealer penetrates deep inside concrete, neutralizes harmful chemicals, forcefully expands into even microscopic pores and hardens. The result is a denser and stronger concrete, resistant to deterioration, sealed permanently against radon, water, and dampness. RadonSeal provides the most simple, effective and affordable radon mitigation, and waterproofing of concrete.

Science and Research

Cancer Survivors Against Radon
A recently published website that shows that radon induced lung cancer isn't just a statistic. Read the stories of real people who were diagnosed with lung cancer. These dedicated people all had high levels of radon gas in their homes and were non-smokers. THANK YOU for your courage and continued fight!
A recently published paper which assesses the association between radon exposure and lung cancer. The paper's lead author is R. William Field, Ph.D., University of Iowa.
Radon Occurrence and Health risk
Brought to you by the Virtual Hospital and R. William Field, Ph.D., this page discusses the medical effects of radon exposures, etc.
The National Cancer Institute Analysis of Home Radon Studies
This page summarizes the NCI analysis of home radon studies that finds increase in lung cancer risk is in line with predictions from miner studies .
Latest BEIR VI Report
Dr. Jonathan Samet's Public Briefing on February 19, 1998.
Latest BEIR VI Report - Radon Chapter
Dr. Jonathan Samet's Public Briefing on February 19, 1998.