Areas of the United States with elevated screening levels of 222Rn

Journal Article · Sat Jan 01 04:00:00 EST 1994 · Health Physics; (United States)

DOI:https://doi.org/10.1097/00004032-199401000-00007· OSTI ID:5548021

Alexander, B; Rodman, N; White, S B; Phillips, J ^[1]

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1. Research Triangle Institute, Research Triangle Park, NC (United States)

As part of an Environmental Protection Agency/State cooperative program, 38 of the 48 contiguous states have successfully conducted probability-based surveys of indoor 222Rn. These surveys produced short-term screening measurements in approximately 55,000 randomly selected houses. An objective common to all surveys was to identify geographic regions within the state with elevated screening levels of 222Rn. This paper examines the survey results as they relate to this objective. The 38 states were partitioned into 225 geographic regions and summary statistics of 222Rn concentrations (e.g., arithmetic mean, geometric mean, percentage of houses exceeding a specified level) and associated 95% confidence intervals were calculated for each region. Twenty-four of the 225 regions had arithmetic means exceeding 222 Bq m-3 (6 pCi L-1); these are analyzed in detail.

• OSTI ID: 5548021
• Journal Information: Health Physics; (United States), Journal Name: Health Physics; (United States) Vol. 66:1; ISSN HLTPAO; ISSN 0017-9078
• Country of Publication: United States
• Language: English

Related Subjects

54 ENVIRONMENTAL SCIENCES
540130* -- Environment
Atmospheric-- Radioactive Materials Monitoring & Transport-- (1990-)
AIR POLLUTION
ALPHA DECAY RADIOISOTOPES
BUILDINGS
DAYS LIVING RADIOISOTOPES
ECOLOGICAL CONCENTRATION
EVEN-EVEN NUCLEI
GEOGRAPHICAL VARIATIONS
HEAVY NUCLEI
HOUSES
INDOOR AIR POLLUTION
ISOTOPES
MATHEMATICS
NUCLEI
POLLUTION
RADIOECOLOGICAL CONCENTRATION
RADIOISOTOPES
RADON 222
RADON ISOTOPES
RESIDENTIAL BUILDINGS
STATISTICS
SURVEYS
VARIATIONS