Bioaerosols emission and exposure risk of a wastewater treatment plant with A(2)O treatment process
文献类型：期刊论文
| 作者 | Han, Yunping; Yang, Kaixiong; Yang, Tang; Zhang, Mengzhu; Li, Lin |
| 刊名 | ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY
 |
| 出版日期 | 2019-03 |
| 卷号 | 169页码:161-168 |
| 关键词 | Airborne bacteria Airborne fungi Particle distribution Microbial population Exposure risk |
| ISSN号 | 0147-6513 |
| 英文摘要 | The characteristics of bioaerosol emissions from wastewater treatment plants (WWTPs) have attracted extensive attention. The anaerobic-anoxic-oxic (A(2)O) process, which uses the activated sludge approach to wastewater treatment, is the most widely used process in WWTPs. Concentration, size distribution, population, and exposure risk from bacteria and fungi in bioaerosols of WWTPs using the A(2)O process were studied in this work. The results showed that the maximum concentration of airborne bacteria (1.00 x 10(4) Colony Forming Units per cubic meter (CFU m(-3))) and fungi (1.44 x 10(4) CFU m(-3)) occurred from the facility's aerobic tank, in summer. As one of the main factors affecting bioaerosol exposure risk, particle size distribution was related to season. The study found that particles larger than 3.3 gm in diameter were detected mainly in spring and summer, while particles less than 3.3 gm were detected mainly in autumn and winter, whether bacterial aerosol or fungal aerosol. In addition, pathogenic bacteria were observed in bioaerosols from WWTPs, with 18 of the 65 species of bacteria detected found to be potentially or opportunistically pathogenic, such as Chryseobacterium, Stenotrophomonas, Alcaligenes, Micrococcus, Pantoea, Enterobacter and Escherichia-Shigella. The presence of these pathogens further increased the exposure risk from bioaerosols. The results of an inhalation risk assessment for airborne bacteria and fungi indicated that potential adverse health risks for adults mainly occurred in spring, summer, and autumn. On this basis, it was concluded that WWTP operators should set up effective bioaerosol controls as soon as possible to protect the health of workers, and of residents near the plant. |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/43064]  |
| 专题 | 生态环境研究中心_环境水质学国家重点实验室 |
| 作者单位 | 1.CSD Beijing Water Serv Co Ltd, Beijing 100192, Peoples R China 2.Univ Chinese Acad Sci, Natl Engn Lab VOCs Pollut Control Mat & Technol, Beijing 101408, Peoples R China 3.Chinese Acad Sci, Res Ctr Ecoenvironm Sci, State Key Lab Environm Aquat Chem, Beijing 100085, Peoples R China |
| 推荐引用方式 GB/T 7714 | Han, Yunping,Yang, Kaixiong,Yang, Tang,et al. Bioaerosols emission and exposure risk of a wastewater treatment plant with A(2)O treatment process[J]. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY,2019,169:161-168. |
| APA | Han, Yunping,Yang, Kaixiong,Yang, Tang,Zhang, Mengzhu,&Li, Lin.(2019).Bioaerosols emission and exposure risk of a wastewater treatment plant with A(2)O treatment process.ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY,169,161-168. |
| MLA | Han, Yunping,et al."Bioaerosols emission and exposure risk of a wastewater treatment plant with A(2)O treatment process".ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 169(2019):161-168. |
入库方式： OAI收割
来源：生态环境研究中心
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