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Health Indicator Report of Radon Screening

Radon is a radioactive gas that comes from the breakdown of naturally occurring uranium in soil and rock. Radon can only be detected by specialized tests and can enter homes through openings that are in contact with the ground. Radon exposure is the second leading cause of lung cancer and the leading cause of lung cancer in non-smokers. The risk of cancer decreases as the radon concentration decreases so it is recommended by the Department of Environmental Protection that every home be tested and mitigated when radon levels are 4 pCi/L or more.


This is Healthy New Jersey 2020 (HNJ2020) Objective EH-2. HNJ2020 target is 35%. The number of tests was determined by looking at pre-mitigation tests conducted in residential buildings since January 1, 1992 and the end of the specified calendar year.

Data Source

U.S. Bureau of the Census, []


Percentage of New Jersey homes that have ever been tested for radon.


Number of homes in New Jersey that have ever been tested for radon during a specified interval.


Number of homes in New Jersey as of the end point of the specified interval.

Other Objectives

'''Healthy New Jersey 2020 Objective EH-2''': Increase the percentage of homes in New Jersey that have ever been tested for radon to 35%.

How Are We Doing?

In 2018, New Jersey exceeded the Healthy New Jersey 2020 target value of 35% of homes tested for radon. There had been steady improvement in the percentage of New Jersey homes ever tested for radon from 1996 (9.7%) to 2019 (36.9%).

What Is Being Done?

The Department of Environmental Protection (DEP) Radon Section conducts outreach activities to educate the public on the risks of radon and how homes can be tested and mitigated. These activities include formal educational slide presentations on radon awareness and participation in exhibits and conventions. The Radon Section has established regulations for the certification of radon testers and mitigators to ensure high quality radon services. All businesses and individuals conducting radon testing and mitigation in New Jersey must be certified by the DEP.

Health Program Information

Information about radon testing and mitigation can be found at [] or contact the NJ Department of Environmental Protection, Radon Section at (800) 648-0394 or (609) 984-5425. Free information packets are available upon request. Information on New Jersey radon potential by county and municipality is available from NJDEP: [] NJDOH has a fact sheet on radon, lung cancer and smoking: []
Page Content Updated On 05/24/2023, Published on 07/03/2023
The information provided above is from the Department of Health's NJSHAD web site ( The information published on this website may be reproduced without permission. Please use the following citation: " Retrieved Mon, 20 May 2024 4:10:09 from Department of Health, New Jersey State Health Assessment Data Web site: ".

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