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Variation of correlations between factors and culturable airborne bacteria and fungi

文献类型： 外文期刊

作者： Gao, Min 1 ; Yan, Xu 2 ; Qiu, Tianlei 1 ; Han, Meilin 1 ; Wang, Xuming 1 ;

作者机构： 1.Beijing Acad Agr & Forestry Sci, Beijing Key Lab Agr Genet Resources & Biotechnol, Beijing Agrobiotechnol Res Ctr, Beijing 100097, Peoples R China

2.Henan Normal Univ, Sch Environm, Xinxiang 453007, Henan, Peoples R China

3.State Key Lab NBC Protect Civilian, Beijing 102205, Peoples R China

关键词： Haze level;Meteorological parameters;Air pollutants;Culturable bioaerosols;Beijing

期刊名称：ATMOSPHERIC ENVIRONMENT （ 影响因子：4.798； 五年影响因子：5.295 ）

ISSN：

年卷期：

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收录情况： SCI

摘要： Bioaerosols, including their characteristics and overall changes correlated with environmental factors, have the potential to impact human health and influence atmospheric dynamics. In this study, the varying interrelationship between the concentration and diameter of culturable bioaerosols and twelve factors including PM2.5 (AQI), PM10 (AQI), sampling time, sampling season, temperature, relative humidity, dew, pressure, wind, O-3, NO2, and SO2 is determined for twelve months during non-haze and haze days in Beijing. Results of principal component analysis (PCA) indicated that the influence of factors on culturable bioaerosols is mainly associated with haze levels, sampling time, and season. Multiple linear regressions showed that the correlation between PM10 (AQI) or temperature and culturable bioaerosols varied at different haze levels. The seasonal influence of PM2.5 (AQI) was observed in culturable bioaerosol concentrations, but not their diameters. A temporal relationship between PM10 (AQI) and culturable bioaerosol concentration was detected during rush hour. SO2 and NO2 show positive and negative correlations with culturable bioaerosol concentrations in the morning/evening and mid-day, respectively. These results are useful for accurately evaluating the health effects of exposure to bioaerosols. (C) 2015 Elsevier Ltd. All rights reserved.

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