CHEN Lan-xia-di1,3, LIN Qin-hao2, PENG Chao1, TANG Ming-jin1, WANG Xin-ming1, BI Xin-hui1
1. State Key Laboratory of Organic Geochemistry, Joint Laboratory of Environmental Pollution Process and Control in Guangdong-Hong Kong-Macao Greater Bay Area, Guangdong Key Laboratory of Environmental Protection and Resources Utilization, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou 510640, China; 2. Guangdong Key Laboratory of Environmental Catalysis and Health Risk Control, School of Environmental Science and Engineering, Institute of Environmental Health and Pollution Control, Guangdong University of Technology, Guangzhou 510006, China; 3. University of Chinese Academy of Sciences, Beijing 100049, China
Abstract：This article introduces techniques used to investigate bioaerosol hygroscopicity, review hygroscopicity of bioaerosols reported in the last thirty years, and compares difference in hygroscopicity for various bioaerosols. Bioaerosols in general show moderate hygroscopicity:hygroscopic growth factors at 90% RH were found to vary between 1.04 for fungal spores and 1.22 for bacteria, and mass growth factors at 90% RH were found to be in the range of 1.30~1.55. Finally, we outline important questions which remained to be answered in this field and also propose some future research priorities.
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