Long Term Performance of Radon Mitigation Systems

TitleLong Term Performance of Radon Mitigation Systems
Publication TypeConference Proceedings
Year of Publication2002
AuthorsRichard J Prill, William J Fisk
Conference NameProceedings of the Indoor Air 2002 Conference, Monterey, CA
Volume2
Pagination641-646
PublisherIndoor Air 2002, Santa Cruz, CA
Abstract

Researchers installed radon mitigation systems in 12 houses in Spokane, Washington and Coeur d'Alene, Idaho during the heating season 1985 – 1986 and continued to monitor indoor radon quarterly and annually for ten years. The mitigation systems included active sub-slab ventilation, basement over-pressurization, and crawlspace isolation and ventilation. The occupants reported various operational problems with these early mitigation systems. The long-term radon measurements were essential to track the effectiveness of the mitigation systems over time. All 12 homes were visited during the second year of the study, while a second set 5 homes was visited during the fifth year to determine the cause(s) of increased radon in the homes. During these visits, the mitigation systems were inspected and measurements of system performance were made. Maintenance and modifications were performed to improve system performance in these homes.

LBNL Report Number

LBNL-50041