中国严寒地区细颗粒物细菌群落特征研究

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Abstract

Through the long-term monitoring of indoor and outdoor fine particles of 3building types (office, classroom and residence) for 110 samples in heating season of Daqing, a typical city in cold region of China, it analyzed the relationship between indoor and outdoor fine particles during heating season. Using 16S rDNA gene analysis method and BLAST source apportionment, the components and sources of bacterial communities in fine particles of 3building types indoors and outdoors were studied. The results showed that average mass concentrations of indoor and outdoor PM_2.5 in Daqing were (32±22) and (45±34) μg/m³, respectively during heating season. The average permeability coefficient of office was lower (0.2886), classroom was higher (0.5702), and rural residence (0.6513) was larger than urban residence (0.6057) slightly. Firmicuts, Proteobacteria, Bacteroidetes and Oxyphotobacteria were the dominant bacterial phyla in fine particulate matter of Daqing during heating season on the whole. The sources for 3building types of bacteria in fine particulate matter indoors and outdoors were mainly soil, water, human, corrupt organic and faeces, while different building types and sampling sites led to different source proportions of bacteria.

Key words： severe cold region of China Daqing fine particulate matter bacteria source and components

Received: 11 February 2019

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X513

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	Articles by authors
	ZHOU Yu-wei
	LV Yang
	CHEN Xi
	WANG Hai-feng
	CHEN Bin
	LIU Tao
	HE Xin
	ZHANG Lei

Cite this article:

ZHOU Yu-wei,LV Yang,CHEN Xi等. Characteristics of bacterial communities in fine particulate matter of severe cold region, China[J]. CHINA ENVIRONMENTAL SCIENCECE, 2019, 39(9): 3616-3623.

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http://www.zghjkx.com.cn/EN/ OR http://www.zghjkx.com.cn/EN/Y2019/V39/I9/3616

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