Intestinal bacteria in bioaerosols and factors affecting their survival in two oxidation ditch process municipal wastewater treatment plants located in different regions

CORC > 生态环境研究中心 > 中国科学院生态环境研究中心 > 环境水质学国家重点实验室

	Intestinal bacteria in bioaerosols and factors affecting their survival in two oxidation ditch process municipal wastewater treatment plants located in different regions
	Yang, Kaixiong; Liu, Junxin; Wang, Yanjie; Li, Lin; Han, Yunping
刊名	ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY
	2018-06-15
卷号	154 页码:162-170
关键词	MWTP Bioaerosols Intestinal bacteria Chemicals Total suspended particulates Soluble ions
ISSN号	0147-6513
文献子类	Article
英文摘要	Samples from two oxidation ditch process municipal wastewater treatment plants (MWTPs) (HJK and GXQ) in two regions of China were analysed for bacteria, particles, total organic carbon, and water-soluble ions in bioaerosols. Diversity and potential pathogen populations were evaluated by high-throughput sequencing. Bioaerosol sources, factors affecting intestinal bacterial survival, and the relationship between bioaerosols and water were analysed by Source tracker and partial least squares-discriminant, principal component, and canonical correspondence analyses. Culturable bacteria concentrations were 110-846 and 27-579 CFU/m(3) at HJK and GXQ, respectively. Intestinal bacteria constituted 6-33% of bacteria. Biochemical reaction tank, sludge dewatering house (SDH), and fine screen samples showed the greatest contribution to bioaerosol contamination. Enterobacter aerogenes was the main intestinal bacteria (> 99.5%) in HJK and detected at each sampling site. Enterobacter aerogenes (98.67% in SDH), Aeromonas sp. (76.3% in biochemical reaction tank), and Acinetobacter baumannii (99.89% in fine screens) were the main intestinal bacteria in GXQ. Total suspended particulate masses in SDH were 229.46 and 141.6 mu g/m(3) in HJK and GXQ, respectively. Percentages of insoluble compounds in total suspended particulates decreased as height increased. The main soluble ions in bioaerosols were Ca2+, Na2+, Cl- and SO42-, which ranged from 3.8 to 27.55 mu g/m(3) in the MWTPs. Water was a main source of intestinal bacteria in bioaerosols from the MWTPs. Bioaerosols in HJK but not in GXQ were closely related. Relative humidity and some ions positively influenced intestinal bacteria in bioaerosols, while wind speed and solar illumination had a negative influence.
内容类型	期刊论文
源URL	[http://ir.rcees.ac.cn/handle/311016/41155]
专题	生态环境研究中心_环境水质学国家重点实验室
推荐引用方式 GB/T 7714	Yang, Kaixiong,Liu, Junxin,Wang, Yanjie,et al. Intestinal bacteria in bioaerosols and factors affecting their survival in two oxidation ditch process municipal wastewater treatment plants located in different regions[J]. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY,2018,154:162-170.
APA	Yang, Kaixiong,Liu, Junxin,Wang, Yanjie,Li, Lin,&Han, Yunping.(2018).Intestinal bacteria in bioaerosols and factors affecting their survival in two oxidation ditch process municipal wastewater treatment plants located in different regions.ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY,154,162-170.
MLA	Yang, Kaixiong,et al."Intestinal bacteria in bioaerosols and factors affecting their survival in two oxidation ditch process municipal wastewater treatment plants located in different regions".ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 154(2018):162-170.