DETAILED INDOOR RADON SURVEY IN DWELLINGS OF PROVISIONAL RADON-PRONE AREAS IN KOREA

Autor: Jaewoo Park, Yong-Jae Kim, Byung-Uck Chang, Kwang Pyo Kim
Rok vydání: 2022
Předmět:
Zdroj: Radiation Protection Dosimetry. 198:472-481
ISSN: 1742-3406
0144-8420
Popis: The objective of this study is to determine indoor radon concentrations for 11 counties in Korea, develop a detailed radon distribution map and compare the results by some factors influencing indoor radon levels. The radon survey was conducted for 7 y in provisional radon-prone areas selected based on the previous national surveys. The total number of samples was >2.5% of the entire dwellings by each county. The annual average indoor radon concentration for the survey areas had a geometric mean of 94 Bq m−3 with 6.6% of all sampled dwellings showing values exceeding 300 Bq m−3. Some areas with relatively high indoor radon concentration were identified through a spatial distribution map. Seasonal variations were observed with commonly the highest concentration in winter, and house characteristics influencing indoor radon levels. This study can serve as a basis for developing national radon action plans and guide for additional regional radon surveys.
Databáze: OpenAIRE