Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.5194/acp-20-7259-2020 |
Importance of gas-particle partitioning of ammonia in haze formation in the rural agricultural environment | |
Xu, Jian1; Chen, Jia1; Zhao, Na1; Wang, Guochen1; Yu, Guangyuan1; Li, Hao1; Huo, Juntao3; Lin, Yanfen3; Fu, Qingyan3; Guo, Hongyu4,5; Deng, Congrui1; Lee, Shan-Hu6; Chen, Jianmin1; Huang, Kan1,2 | |
2020-06-23 | |
发表期刊 | ATMOSPHERIC CHEMISTRY AND PHYSICS |
ISSN | 1680-7316 |
EISSN | 1680-7324 |
出版年 | 2020 |
卷号 | 20期号:12页码:7259-7269 |
文章类型 | Article |
语种 | 英语 |
国家 | Peoples R China; USA |
英文摘要 | Ammonia in the atmosphere is essential for the formation of fine particles that impact air quality and climate. Despite extensive prior research to disentangle the relationship between ammonia and haze pollution, the role of ammonia in haze formation in high ammonia-emitting regions is still not well understood Aiming to better understand secondary inorganic aerosol (sulfate, nitrate, ammonium - SNA) formation mechanisms under high-ammonia conditions, 1-year hourly measurement of water-soluble inorganic species (gas and particle) was conducted at a rural supersite in Shanghai. Exceedingly high levels of agricultural ammonia, constantly around 30 mu g m(-3), were observed. We find that gas-particle partitioning of ammonia (epsilon(NH4+)), as opposed to ammonia concentrations, plays a critical role in SNA formation during the haze period. From an assessment of the effects of various parameters, including temperature (T), aerosol water content (AWC), aerosol pH, and activity coefficient, it seems that AWC plays predominant regulating roles for epsilon(NH4+). We propose a self-amplifying feedback mechanism associated with epsilon(NH4+) for the formation of SNA, which is consistent with diurnal variations in epsilon(NH4+), AWC, and SNA. Our results imply that a reduction in ammonia emissions alone may not reduce SNA effectively, at least at rural agricultural sites in China. |
领域 | 地球科学 |
收录类别 | SCI-E |
WOS记录号 | WOS:000543717500004 |
WOS关键词 | SECONDARY ORGANIC AEROSOL ; LIQUID WATER DRIVEN ; ATMOSPHERIC AMMONIA ; PARTICULATE MATTER ; VEHICLE EMISSIONS ; SULFATE FORMATION ; AQUEOUS-PHASE ; CHINA ; PH ; POLLUTION |
WOS类目 | Environmental Sciences ; Meteorology & Atmospheric Sciences |
WOS研究方向 | Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences |
URL | 查看原文 |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/278093 |
专题 | 地球科学 |
作者单位 | 1.Fudan Univ, Dept Environm Sci & Engn, Shanghai Key Lab Atmospher Particle Pollut & Prev, Shanghai 200433, Peoples R China; 2.Inst Ecochongming IEC, 20 Cuiniao Rd, Shanghai 202162, Peoples R China; 3.Shanghai Environm Monitoring Ctr, Shanghai 200030, Peoples R China; 4.Univ Colorado, Cooperat Inst Res Environm Sci, Boulder, CO 80309 USA; 5.Univ Colorado, Dept Chem, Boulder, CO 80309 USA; 6.Univ Alabama, Dept Atmospher Sci, Huntsville, AL 35758 USA |
推荐引用方式 GB/T 7714 | Xu, Jian,Chen, Jia,Zhao, Na,et al. Importance of gas-particle partitioning of ammonia in haze formation in the rural agricultural environment[J]. ATMOSPHERIC CHEMISTRY AND PHYSICS,2020,20(12):7259-7269. |
APA | Xu, Jian.,Chen, Jia.,Zhao, Na.,Wang, Guochen.,Yu, Guangyuan.,...&Huang, Kan.(2020).Importance of gas-particle partitioning of ammonia in haze formation in the rural agricultural environment.ATMOSPHERIC CHEMISTRY AND PHYSICS,20(12),7259-7269. |
MLA | Xu, Jian,et al."Importance of gas-particle partitioning of ammonia in haze formation in the rural agricultural environment".ATMOSPHERIC CHEMISTRY AND PHYSICS 20.12(2020):7259-7269. |
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