Nitrous acid emission from soil bacteria and related environmental effect over the North China Plain

doi:10.1016/j.chemosphere.2021.132034

CORC > 地球环境研究所 > 中国科学院地球环境研究所 > 粉尘与环境研究室

	Nitrous acid emission from soil bacteria and related environmental effect over the North China Plain
	Feng, Tian 1,2; Zhao, Shuyu 3; Liu, Lang 3; Long, Xin 4; Gao, Chao 1; Wu, Naicheng 1
刊名	CHEMOSPHERE
	2022
卷号	287 页码:9
关键词	Nitrous acid Soil bacteria Cropland Air quality
ISSN号	0045-6535
DOI	10.1016/j.chemosphere.2021.132034
通讯作者	Gao, Chao(gaoqinchao1@163.com)
英文摘要	Soil bacteria could be one of the important sources for ambient HONO. However, the HONO emission from soil bacteria over North China Plain (NCP) with vast croplands has not yet been evaluated. In this study, high-resolution simulations are created to explore the HONO emission from soil bacteria over NCP and related in-fluences on atmospheric chemistry. Ground measurements of critical air pollutants including O-3, HONO, and PM2.5 compositions are incorporated to constrain the model simulations. Results show that abundant HONO is emitted from soil bacteria over NCP during summertime and the emission rate varies dramatically for different areas (about 0.2 kg km(-2) d(-1) - 2.0 kg km(-2) d(-1)). The HONO emission rate presents clear diurnal cycles with peaks of 1.5 kg km(-2) d(-1) in the afternoon and valleys of 0.4 kg km(-2) d(-1) during the early morning hours. The resulting HONO concentration ranges from 0.2 mu g m(-3) to 1.4 mu gm(-3), which predominates the total HONO concentration in ambient air, particularly in western NCP. The soil bacteria source can significantly alter the diurnal cycles of ambient HONO and OH concentrations over NCP, but only slightly change O-3 and PM2.5 concentrations via participating photochemistry and secondary aerosol formations. These results highlight the pressing need for the involvement of HONO emission from soil bacteria in modeling studies regarding atmo-spheric chemistry, particularly in rural areas.
资助项目	Natural Science Foundation of Zhejiang Province[LZ20D050001] ; National Natural Science Foundation of China[41703127] ; K. C. Wong Magna Fund in Ningbo University
WOS关键词	DIFFERENTIAL OPTICAL-ABSORPTION ; ORGANIC AEROSOL CONCENTRATIONS ; TIANJIN-HEBEI BTH ; HONO SOURCES ; MEXICO-CITY ; AIR-QUALITY ; WINTERTIME HAZE ; GUANZHONG BASIN ; RURAL SITE ; WRF-CHEM
WOS研究方向	Environmental Sciences & Ecology
语种	英语
出版者	PERGAMON-ELSEVIER SCIENCE LTD
WOS记录号	WOS:000704979500003
资助机构	Natural Science Foundation of Zhejiang Province ; National Natural Science Foundation of China ; K. C. Wong Magna Fund in Ningbo University
内容类型	期刊论文
源URL	[http://ir.ieecas.cn/handle/361006/17097]
专题	地球环境研究所_粉尘与环境研究室
通讯作者	Gao, Chao
作者单位	1.Ningbo Univ, Dept Geog & Spatial Informat Tech, Ningbo 315211, Zhejiang, Peoples R China 2.Ningbo Univ, Inst East China Sea, Ningbo 315211, Zhejiang, Peoples R China 3.Chinese Acad Sci, Inst Earth Environm, Key Lab Aerosol Chem & Phys, SKLLQG, Xian 710061, Shaanxi, Peoples R China 4.Southern Univ Sci & Technol, Sch Environm Sci & Engn, Shenzhen 518055, Guangdong, Peoples R China
推荐引用方式 GB/T 7714	Feng, Tian,Zhao, Shuyu,Liu, Lang,et al. Nitrous acid emission from soil bacteria and related environmental effect over the North China Plain[J]. CHEMOSPHERE,2022,287:9.
APA	Feng, Tian,Zhao, Shuyu,Liu, Lang,Long, Xin,Gao, Chao,&Wu, Naicheng.(2022).Nitrous acid emission from soil bacteria and related environmental effect over the North China Plain.CHEMOSPHERE,287,9.
MLA	Feng, Tian,et al."Nitrous acid emission from soil bacteria and related environmental effect over the North China Plain".CHEMOSPHERE 287(2022):9.