2021年6月
Resuspension and deposition of PM<inf>2.5</inf> and PM<inf>10</inf> containing radiocesium during and after indoor cleaning of uninhabited houses in Fukushima, Japan
Chemosphere
- ,
- 巻
- 272
- 号
- 記述言語
- 掲載種別
- 研究論文(学術雑誌)
- DOI
- 10.1016/j.chemosphere.2021.129934
Radiocesium contamination in homes could be a serious concern following Japan's 2011 Fukushima Daiichi Nuclear Power Plant accident, including exposure to radiocesium during cleaning when residents return home after the lifting of evacuation orders. This study measured PM and PM concentrations containing radiocesium during cleaning (dusting, vacuuming with a cordless cyclone unit, and vacuuming with a corded paper-pack unit), as well as air exchange rates, in 12 residential houses in Fukushima. Surface dusting of walls, shelves, and furniture significantly increased concentrations of PM and PM by up to 6.3 and 16 times the background (outdoor) level, respectively. Vacuuming with a paper-pack unit increased levels by 2.2 and 3.3 times, while vacuuming with a cordless cyclone unit increased these by 1.3 and 1.5 times, respectively. Measurements in 11 houses revealed an average air exchange rate of 0.22/h and dry deposition rates for PM and PM of 0.13/h and 0.32/h, respectively. Dry deposition rates were not correlated with building age, although the air exchange rates showed statistically significant increases with increasing building age. Dry deposition rates of PM significantly decreased with increasing air exchange rates. 2.5 10 2.5 10 2.5 10 2.5
- リンク情報
- ID情報
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- DOI : 10.1016/j.chemosphere.2021.129934
- ISSN : 0045-6535
- eISSN : 1879-1298
- SCOPUS ID : 85101311695