Seasonal behavior of water-soluble organic nitrogen in fine particulate matter (PM2.5) at urban coastal environments in Hong Kong

doi:10.1007/s11869-018-0654-5

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

	Seasonal behavior of water-soluble organic nitrogen in fine particulate matter (PM2.5) at urban coastal environments in Hong Kong
	Ho, Steven Sai Hang 2,3,4; Li, Lijuan 2,3; Qu, Linli 5; Cao, Junji 2,3; Lui, Ka Hei 1; Niu, Xinyi 1; Lee, Shun-Cheng 6; Ho, Kin Fai 1
刊名	AIR QUALITY ATMOSPHERE AND HEALTH
	2019-04-01
卷号	12 期号:4 页码:389-399
关键词	Water-soluble organic nitrogen Amino acids Amines Urea Coastal area PM2.5
ISSN号	1873-9318
DOI	10.1007/s11869-018-0654-5
通讯作者	Ho, Kin Fai(kfho@cuhk.edu.hk)
英文摘要	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.
资助项目	Research Grants Council of the Hong Kong Special Administrative Region China[CRF/C5022-14G]
WOS关键词	SIZE DISTRIBUTION ; AMINO-ACIDS ; AEROSOL ; DEPOSITION ; PARTICLES ; UREA ; GUANGZHOU ; PROTEIN ; CHINA ; DRY
WOS研究方向	Environmental Sciences & Ecology
语种	英语
出版者	SPRINGER
WOS记录号	WOS:000463724900003
资助机构	Research Grants Council of the Hong Kong Special Administrative Region China
内容类型	期刊论文
源URL	[http://ir.ieecas.cn/handle/361006/14178]
专题	地球环境研究所_粉尘与环境研究室
通讯作者	Ho, Kin Fai
作者单位	1.Chinese Univ Hong Kong, Jockey Club Sch Publ Hlth & Primary Care, Shatin, Hong Kong, Peoples R China 2.Chinese Acad Sci, Inst Earth Environm, KLACP, Xian 710061, Shaanxi, Peoples R China 3.Chinese Acad Sci, Inst Earth Environm, SKLLQG, Xian 710061, Shaanxi, Peoples R China 4.Desert Res Inst, Div Atmospher Sci, Reno, NV 89512 USA 5.Hong Kong Premium Serv & Res Co, Kowloon, Lai Chi Kok, Hong Kong, Peoples R China 6.Hong Kong Polytech Univ, Dept Civil & Environm Engn, Hung Hom, Hong Kong, Peoples R China
推荐引用方式 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.