Aerosols from a wastewater treatment plant using oxidation ditch process: Characteristics, source apportionment, and exposure risks
文献类型：期刊论文
| 作者 | Yang, Tang; Han, Yunping; Liu, Junxin; Li, Lin |
| 刊名 | ENVIRONMENTAL POLLUTION
 |
| 出版日期 | 2019-07 |
| 卷号 | 250页码:627-638 |
| 关键词 | Wastewater treatment plant Oxidation ditch Aerosol Source apportionment Exposure risk |
| ISSN号 | 0269-7491 |
| 英文摘要 | The study of aerosol dispersion characteristics in wastewater treatment plants (WWTPs) has attracted extensive attention. Oxidation ditch (OD) is a commonly implemented process during biological wastewater treatment. This study assessed the component characteristics, source apportionment, and exposure risks of aerosols generated from a WWTP using the OD process (AWO). The results indicated that the aeration part of oxidation ditch (ODA) exhibited the highest concentrations and proportions of the respiratory fractions (RF) of bacteria, Enterobacteriaceae, Staphylococcus aureus, and Pseudomonas aeruginosa. Some pathogenic or opportunistic-pathogenic bacteria and carcinogenic metal(loid)s were detected in the AWO. The source apportionment results indicated that the outdoor wastewater treatment processes and ambient air contributed to the constitution of the AWO. The indoor aerosols were mainly constituted by composition of the wastewater treatment process such as the sludge dewatering room (SDR). The pathogenic or opportunistic-pathogenic bacteria with eight genera (Colinsella, Dermatophilus, Enterobactor, Erycherichia-Shigella, Ledionella, Selenomonas, Xanthobacter, and Veillonella) were largely attributed to wastewater or sludge. The risk assessment suggested that inhalation was the main exposure pathway for aerosols (including bacteria and metal(loid)s). Additionally, As indicated the highest non-carcinogenic risks. Furthermore, As, Cd, and Co were associated with high carcinogenic risks. The ODA and sludge dewatering room (SDR) indicated the highest carcinogenic and non-carcinogenic risks of metal(loid)s, respectively. Thus, the AWO should be sufficiently researched and monitored to mitigate their harmful effects on human health, particularly with regard to the health of the site workers. (C) 2019 Elsevier Ltd. All rights reserved. |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/43057]  |
| 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.Univ Chinese Acad Sci, Natl Engn Lab VOCs Pollut Control Mat & Technol, Beijing 101408, Peoples R China 2.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 | Yang, Tang,Han, Yunping,Liu, Junxin,et al. Aerosols from a wastewater treatment plant using oxidation ditch process: Characteristics, source apportionment, and exposure risks[J]. ENVIRONMENTAL POLLUTION,2019,250:627-638. |
| APA | Yang, Tang,Han, Yunping,Liu, Junxin,&Li, Lin.(2019).Aerosols from a wastewater treatment plant using oxidation ditch process: Characteristics, source apportionment, and exposure risks.ENVIRONMENTAL POLLUTION,250,627-638. |
| MLA | Yang, Tang,et al."Aerosols from a wastewater treatment plant using oxidation ditch process: Characteristics, source apportionment, and exposure risks".ENVIRONMENTAL POLLUTION 250(2019):627-638. |
入库方式： OAI收割
来源：生态环境研究中心
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