污水处理厂生物气溶胶抗生素抗性污染特征

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Abstract In order to explore the pollution characteristics of antibiotic resistance genes (ARGs) associated with bioaerosols from a wastewater treatment plant in Jinan, bioaerosol within and around this plant, and wastewater or sludge, were analyzed using shotgun metagenome sequencing. Compared to bioaerosols from upwind, that from this plant and downwind were characterized with more subtype number and higher total abundance of ARGs. Significant difference (47.57%) for the compositions of ARGs in bioaerosols, was found between upwind and this plant. The dissimilarity of ARGs in bioaerosols was not significant between downwind and this plant, and the difference decreased to 33.98%. Ambient air and wastewater/sludge were both the important source for ARGs in bioaerosols from this plant, with the total source contribution higher than 63.92%. A total of 43subtypes (8types) of ARGs were easily aerosolized in bioaerosols from at least one of the treatment units. These results could provide the theoretical basis for the risk assessment and control of antibiotic resistant contamination in wastewater treatment plants.

Key words： wastewater treatment plant bioaerosols antibiotics resistance gene (ARGs) pollution characteristics source

Received: 24 May 2022

PACS:	X513
	X502

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	Articles by authors
	YANG Tang
	HUI Xiao-liang
	WANG Zhen-xing
	HE Yu-xin
	ZHOU Xiao-lin

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YANG Tang,HUI Xiao-liang,WANG Zhen-xing等. Pollution characteristics of antibiotics resistance associated with bioaerosols from a wastewater treatment plant[J]. CHINA ENVIRONMENTAL SCIENCECE, 2022, 42(12): 5626-5632.

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http://www.zghjkx.com.cn/EN/ OR http://www.zghjkx.com.cn/EN/Y2022/V42/I12/5626

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