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タイトル: | Indoor particle counts during Asian dust events under everyday conditions at an apartment in Japan. |
著者: | Kanatani, Kumiko T Okumura, Motonori Tohno, Susumu Adachi, Yuichi Sato, Keiko Nakayama, Takeo https://orcid.org/0000-0002-7918-6252 (unconfirmed) |
著者名の別形: | 金谷, 久美子 |
キーワード: | Indoor air PM2.5 PM10 Dust storm Asian dust |
発行日: | 10-Aug-2013 |
出版者: | Springer Japan |
誌名: | Environmental health and preventive medicine |
巻: | 19 |
号: | 1 |
開始ページ: | 81 |
終了ページ: | 88 |
抄録: | [Objective]Asian dust storms originating from arid regions of Mongolia and China are a well-known springtime phenomenon throughout East Asia. Evidence is increasing for the adverse health effects caused by airborne desert dust inhalation. Given that people spend approximately 90 % of their time indoors, indoor air quality is a significant concern. The present study aimed to examine the influence of outdoor particulate matter (PM) levels on indoor PM levels during Asian dust events under everyday conditions. [Methods]We simultaneously monitored counts of particles larger than 0.3, 0.5, 1, 2, and 5 μm using two direct-reading instruments (KC-01D1 airborne particle counter; Rion), one placed in an apartment room and another on the veranda, under everyday conditions before and during an Asian dust event. We also examined how indoor particle counts were affected by opening a window, crawling, and air purifier use. [Results]An Asian dust event on 24 April 2012 caused 50- and 20-fold increases in PM counts in outdoor and indoor air, respectively. A window open for 10 min resulted in a rapid increase of indoor PM counts up to 70 % of outside levels that did not return to baseline levels after 3 h. An air purifier rapidly reduced PM counts for all particle sizes measured. [Conclusions]It is important to account for occupant behavior, such as window-opening and air purifier use, when estimating residential exposure to particulate matter. |
著作権等: | The final publication is available at Springer via http://dx.doi.org/10.1007/s12199-013-0356-4 This is not the published version. Please cite only the published version. この論文は出版社版でありません。引用の際には出版社版をご確認ご利用ください。 |
URI: | http://hdl.handle.net/2433/196631 |
DOI(出版社版): | 10.1007/s12199-013-0356-4 |
PubMed ID: | 23934359 |
出現コレクション: | 学術雑誌掲載論文等 |
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