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Characteristics of microbial aerosol particles dispersed downwind from rural sanitation facilities: Size distribution, source tracking and exposure risk
Li, Pengyu; Li, Lin; Yang, Kaixiong; Zheng, Tianlong; Liu, Junxin; Wang, Yanjie
2021-04
Source PublicationENVIRONMENTAL RESEARCH
ISSN0013-9351
Volume195Pages:-
AbstractBioaerosols containing pathogens released from waste and wastewater treatment facilities pose potential health risks to workers on-site and residents downwind. In this study, sampling sites were set up at rural garbage stations (GS-1 and GS-2) and sewage treatment station (STS) to investigate the emission and diffusion characteristics of bioaerosols. High-throughput sequencing was utilized to assay the intestinal bacteria population, while the health risks associated with bioaerosols exposure were estimated based on average daily dose rates (DD). Traceability analysis was used to determine the percentages of intestinal bacteria from GS-1, GS-2 and STS. The recorded emission levels of bioaerosols in the air surrounding GS-1, GS-2, and STS were 5053, 6299, and 4795 CFU/m(3), containing 1599, 2244, and 2233 CFU/m(3) of intestinal bacteria, respectively. Most of the bioaerosols were coarse particles with size larger than 4.7 mu m. Methylobacterium, Rhizobium, Pseudomonas, Enterobacteriaceae, and Brucella presented in the air were originally in rural waste and wastewater. STS and GS-2 were potential sources of intestinal bacteria. With increasing distance from the sources, the concentration of bio-aerosols decreased gradually. On-site workers and residents were predominantly affected by bioaerosols through inhalation. The exposure risks via inhalation and skin contact for children were much higher than that for adults. The purpose of this study was to provide preliminary data for bioaerosols control and their risks reduction released from rural sanitation facilities.
Department环境水质学国家重点实验室
KeywordBioaerosols Rural waste and sewage Particle size Diffusion Health risk
WOS Research AreaEnvironmental Sciences ; Public, Environmental & Occupational Health
Document Type期刊论文
Identifierhttps://ir.rcees.ac.cn/handle/311016/45916
Collection环境水质学国家重点实验室
Affiliation1.Chinese Acad Sci, Res Ctr Ecoenvironm Sci, State Key Lab Environm Aquat Chem, Beijing 100085, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
3.Univ Chinese Acad Sci, Natl Engn Lab VOCs Pollut Control Mat & Technol, Beijing 101408, Peoples R China
4.Pilot Natl Lab Marine Sci & Technol Qingdao, Qingdao 266237, Peoples R China
5.Zhengzhou Univ, Sch Publ Hlth, Zhengzhou 450001, Peoples R China
6.Univ Lancaster, Lancaster Environm Ctr, Lancaster LA1 4YQ, England
Recommended Citation
GB/T 7714
Li, Pengyu,Li, Lin,Yang, Kaixiong,et al. Characteristics of microbial aerosol particles dispersed downwind from rural sanitation facilities: Size distribution, source tracking and exposure risk[J]. ENVIRONMENTAL RESEARCH,2021,195:-.
APA Li, Pengyu,Li, Lin,Yang, Kaixiong,Zheng, Tianlong,Liu, Junxin,&Wang, Yanjie.(2021).Characteristics of microbial aerosol particles dispersed downwind from rural sanitation facilities: Size distribution, source tracking and exposure risk.ENVIRONMENTAL RESEARCH,195,-.
MLA Li, Pengyu,et al."Characteristics of microbial aerosol particles dispersed downwind from rural sanitation facilities: Size distribution, source tracking and exposure risk".ENVIRONMENTAL RESEARCH 195(2021):-.
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