IEECAS OpenIR  > 粉尘与环境研究室
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
Corresponding AuthorHo, Kin Fai(kfho@cuhk.edu.hk)
2019-04-01
Source PublicationAIR QUALITY ATMOSPHERE AND HEALTH
ISSN1873-9318
Volume12Issue:4Pages:389-399
AbstractWater-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.
KeywordWater-soluble organic nitrogen Amino acids Amines Urea Coastal area PM2.5
DOI10.1007/s11869-018-0654-5
WOS KeywordSIZE DISTRIBUTION ; AMINO-ACIDS ; AEROSOL ; DEPOSITION ; PARTICLES ; UREA ; GUANGZHOU ; PROTEIN ; CHINA ; DRY
Indexed BySCI ; SCI
Language英语
Funding ProjectResearch Grants Council of the Hong Kong Special Administrative Region China[CRF/C5022-14G]
WOS Research AreaEnvironmental Sciences & Ecology
Funding OrganizationResearch Grants Council of the Hong Kong Special Administrative Region China
WOS SubjectEnvironmental Sciences
WOS IDWOS:000463724900003
PublisherSPRINGER
Citation statistics
Cited Times:3[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ieecas.cn/handle/361006/14179
Collection粉尘与环境研究室
Corresponding AuthorHo, Kin Fai
Affiliation1.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
Recommended Citation
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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