International Radon and Vapor Intrusion Symposium

October 24-26, 2022

Bellevue, Washington

Explore the hottest new products and technology. Reinforce your radon testing or soil gas mitigation practices. Hear from the leading testers, mitigators, agency partners and lung cancer prevention advocates. Expand your knowledge of business-specific resources to elevate your business. Earn C.E. credits towards your certification or state license. Roam the largest radon and soil gas mitigation exhibition hall featuring vendors from around the globe.

Deadline for submissions extended to May 15, 2022

The 2022 Call for Abstracts is now open and we need you!

The International Radon and Vapor Intrusion Symposium will take place at the

Hyatt Regency Bellevue on Seattle’s Eastside
900 Bellevue Way NE  |  Bellevue, Washington |  98004  |  USA

October 24 – 26, 2022

We are looking for presentation abstracts from members of the scientific, medical, professional, educational, housing, business, policy, and advocacy communities to share new and innovative technology, research findings, business and financial strategies, policy updates and other topics that will educate radon and chemical vapor intrusion professionals and other stakeholders.

➼ Many thought-provoking sessions to choose from.

➼ Roundtable discussions on booming your business.

➼ Expert presentations, policy updates and research reports.

➼ Product and service innovators and exhibitors.

➼ Beneficial networking opportunities.

“Dedicated to the highest standard of excellence and the ethical performance of radon measurement, mitigation, and transfer of information for the benefit of members, consumers, and the public at large” is the core of every symposium. Visit the Education page to learn more about courses and C.E. available at the symposium.

Calling Exhibitors!

If you sell products, systems, and services to the soil gas industry, then this trade show is for you!

In our 36th year, the exhibit hall has doubled in size in just the past 6 years! The International Radon and Vapor Intrusion attendee is your customer.


The annual symposium is the essence of community. Community is about being connected.  The most lasting connections our professionals have made, so often are made at the symposiums. Join us this year and grow your community!