Continuous measurements of outdoor {sup 222}Rn concentrations for three years at one location in Colorado
- Colorado State Univ., Ft. Collins, CO (United States). Dept. of Radiological Health Sciences
Measurements were made of {sup 222}Rn concentrations outdoors in Ft. Collins, Colorado, using a continuously sampling scintillation flask between January 1993 and December 1995. These data were analyzed for hourly, daily, and seasonal variations. The average {sup 222}Rn concentration at 1 m above the ground was 18 {+-} 10 Bq m{sup {minus}3} with a geometric mean of 15 Bq m{sup {minus}3} and a geometric standard deviation of 1.7. Hourly averaged data indicated a diurnal pattern with the outdoor {sup 222}Rn concentration reaching a maximum in the early morning between 4:00 a.m. and 6:00 a.m. and a broad minimum between 1:00 p.m. and 4:00 p.m. in the afternoon. An analysis also indicated that the outdoor {sup 222}Rn concentrations were consistently lowest during the spring (March and April) and highest during the late summer (July--September).
- Sponsoring Organization:
- USDOE, Washington, DC (United States)
- DOE Contract Number:
- FG02-87ER60581
- OSTI ID:
- 332719
- Journal Information:
- Health Physics, Journal Name: Health Physics Journal Issue: 4 Vol. 76; ISSN HLTPAO; ISSN 0017-9078
- Country of Publication:
- United States
- Language:
- English
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