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Seasonal behavior of water-soluble organic nitrogen in fine particulate matter (PM2.5) at urban coastal environments in Hong Kong
Ho, Steven Sai Hang1,2,3; Li, Lijuan1,2; Qu, Linli4; Cao, Junji1,2; Lui, Ka Hei5; Niu, Xinyi5; Lee, Shun-Cheng6; Ho, Kin Fai5
通讯作者Ho, Kin Fai(kfho@cuhk.edu.hk)
2019-04-01
发表期刊AIR QUALITY ATMOSPHERE AND HEALTH
ISSN1873-9318
卷号12期号:4页码:389-399
摘要Water-soluble organic nitrogen (WSON) in fine particulate matter (PM2.5) was determined at urban coastal environments in China based on 1-year measurement. The WSON concentrations were in a range of 14.3-257.6 nmol Nm(-3) and accounted for 22.0-61.2% of the water-soluble nitrogen (WSN) in composition. The average total concentration of free amino acid (FAA) was 1264.5 +/- 393.0 pmol m(-3), which was lower than those in continental urban cities but nevertheless comparable to the rural area of Pearl River Delta (PRD) in China. The total quantified amines and amino compounds ranged from 223.8 to 806.0 pmol m(-3) in which methylamine, ethylamine, and ethanolamine were the most abundant compounds. The average concentration of urea was 7.8 +/- 3.0 nmol m(-3) and at least one order of magnitude higher than those in marine and rural areas but comparable to other continental cities in China during non-dust period. Summer showed the highest average concentration of WSON (95.0 +/- 66.6 nmol N m(-3)) and composition in WSN (49.3%) compared to other seasons (27.9-37.0%). The results were consistent with previous findings that the inorganics can contribute more than the organics in secondary aerosol formation. There were no distinctive seasonal variations of organic compositions of FAA, amine and amino compounds, and urea. This observation was possibly attributed to a mix of original sources in urban and different prevailing wind directions. Fair correlations (r<0.4) between WSON compounds and atmospheric oxidants [ozone (O-3) and nitrogen oxides (NOx)] suggest that biogenic oxidation is possibly not a major contributing factor in atmospheric coastal urban location.
关键词Water-soluble organic nitrogen Amino acids Amines Urea Coastal area PM2.5
DOI10.1007/s11869-018-0654-5
关键词[WOS]SIZE DISTRIBUTION ; AMINO-ACIDS ; AEROSOL ; DEPOSITION ; PARTICLES ; UREA ; GUANGZHOU ; PROTEIN ; CHINA ; DRY
收录类别SCI ; SCI
语种英语
资助项目Research Grants Council of the Hong Kong Special Administrative Region China[CRF/C5022-14G]
WOS研究方向Environmental Sciences & Ecology
项目资助者Research Grants Council of the Hong Kong Special Administrative Region China
WOS类目Environmental Sciences
WOS记录号WOS:000463724900003
出版者SPRINGER
引用统计
被引频次:10[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ieecas.cn/handle/361006/14179
专题粉尘与环境研究室
通讯作者Ho, Kin Fai
作者单位1.Chinese Acad Sci, Inst Earth Environm, KLACP, Xian 710061, Shaanxi, Peoples R China
2.Chinese Acad Sci, Inst Earth Environm, SKLLQG, Xian 710061, Shaanxi, Peoples R China
3.Desert Res Inst, Div Atmospher Sci, Reno, NV 89512 USA
4.Hong Kong Premium Serv & Res Co, Kowloon, Lai Chi Kok, Hong Kong, Peoples R China
5.Chinese Univ Hong Kong, Jockey Club Sch Publ Hlth & Primary Care, Shatin, Hong Kong, Peoples R China
6.Hong Kong Polytech Univ, Dept Civil & Environm Engn, Hung Hom, Hong Kong, Peoples R China
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GB/T 7714
Ho, Steven Sai Hang,Li, Lijuan,Qu, Linli,et al. Seasonal behavior of water-soluble organic nitrogen in fine particulate matter (PM2.5) at urban coastal environments in Hong Kong[J]. AIR QUALITY ATMOSPHERE AND HEALTH,2019,12(4):389-399.
APA Ho, Steven Sai Hang.,Li, Lijuan.,Qu, Linli.,Cao, Junji.,Lui, Ka Hei.,...&Ho, Kin Fai.(2019).Seasonal behavior of water-soluble organic nitrogen in fine particulate matter (PM2.5) at urban coastal environments in Hong Kong.AIR QUALITY ATMOSPHERE AND HEALTH,12(4),389-399.
MLA Ho, Steven Sai Hang,et al."Seasonal behavior of water-soluble organic nitrogen in fine particulate matter (PM2.5) at urban coastal environments in Hong Kong".AIR QUALITY ATMOSPHERE AND HEALTH 12.4(2019):389-399.
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