| Seasonal variations of C-1-C-4 alkyl nitrates at a coastal site in Hong Kong: Influence of photochemical formation and oceanic emissions | |
| Song, Junwei1; Zhang, Yingyi1; Huang, Yu2,3; Ho, Kin Fai4; Yuan, Zibing1; Ling, Zhenhao5; Niu, Xiaojun1; Gao, Yuan2; Cui, Long2; Louie, Peter K. K.6; Lee, Shun-cheng2; Lai, Senchao1 | |
| 2018-03-01 | |
| Source Publication | CHEMOSPHERE
 |
| Volume | 194Issue:2018Pages:275-284 |
| Subtype | Article |
| Abstract | Five C-1-C-4 alkyl nitrates (RONO2) were measured at a coastal site in Hong Kong in four selected months of 2011 and 2012. The total mixing ratios of C-1-C-4 RONO2 (Sigma 5RONO2) ranged from 15.4 to 143.7 pptv with an average of 65.9 +/- 33.0 pptv. C-3-C-4 RONO2 (2-butyl nitrate and 2-propyl nitrate) were the most abundant RONO2 during the entire sampling period. The mixing ratios of C-3-C-4 RONO2 were higher in winter than those in summer, while the ones of methyl nitrate (MeONO2) were higher in summer than those in winter. Source analysis suggests that C-2-C-4 RONO2 were mainly derived from photochemical formation along with biomass burning (58.3-71.6%), while ocean was a major contributor to MeONO2 (53.8%) during the whole sampling period. The photochemical evolution of C-2-C-4 RONO2 was investigated, and found to be dominantly produced by the parent hydrocarbon oxidation. The notable enrichment of MeONO2 over C-3-C-4 RONO2 was observed in a summer episode when the air masses originating from the South China Sea (SCS) and MeONO2 was dominantly derived from oceanic emissions. In order to improve the accuracy of ozone (O-3) prediction in coastal environment, the relative contribution of RONO2 from oceanic emissions versus photochemical formation and their coupling effects on O-3 production should be taken into account in future studies. (C) 2017 Elsevier Ltd. All rights reserved. |
| Keyword | Alkyl Nitrates Seasonality Photochemical Production Marine Emissions Ozone |
| WOS Headings | Science & Technology ; Life Sciences & Biomedicine |
| DOI | 10.1016/j.chemosphere.2017.11.104 |
| WOS Keyword | VOLATILE ORGANIC-COMPOUNDS ; PEARL RIVER DELTA ; ABSORPTION CROSS-SECTIONS ; NOX-AIR PHOTOOXIDATIONS ; METHYL NITRATE ; SOUTHERN CHINA ; COMPOUNDS VOCS ; CARBONYL-COMPOUNDS ; ATMOSPHERIC FATE ; HKUST SUPERSITE |
| Indexed By | SCI |
| Language | 英语 |
| WOS Research Area | Environmental Sciences & Ecology |
| WOS Subject | Environmental Sciences |
| WOS ID | WOS:000423890700030 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.ieecas.cn/handle/361006/5241 |
| Collection | 粉尘与环境研究室 |
| Affiliation | 1.South China Univ Technol, Guangdong Prov Key Lab Atmospher Environm & Pollu, Sch Environm & Energy, Guangzhou, Guangdong, Peoples R China 2.Hong Kong Polytech Univ, Dept Civil & Environm Engn, Hong Kong, Hong Kong, Peoples R China 3.Chinese Acad Sci, Inst Earth Environm, Key Lab Aerosol Chem & Phys, Xian, Shaanxi, Peoples R China 4.Chinese Univ Hong Kong, Jockey Club Sch Publ Hlth & Primary Care, Sha Tin, Hong Kong, Peoples R China 5.Sun Yat Sen Univ, Sch Environm Sci & Engn, Guangzhou, Guangdong, Peoples R China 6.Hong Kong Environm Protect Dept, Wan Chai, Hong Kong, Peoples R China |
| Recommended Citation GB/T 7714 | Song, Junwei,Zhang, Yingyi,Huang, Yu,et al. Seasonal variations of C-1-C-4 alkyl nitrates at a coastal site in Hong Kong: Influence of photochemical formation and oceanic emissions[J]. CHEMOSPHERE,2018,194(2018):275-284. |
| APA | Song, Junwei.,Zhang, Yingyi.,Huang, Yu.,Ho, Kin Fai.,Yuan, Zibing.,...&Lai, Senchao.(2018).Seasonal variations of C-1-C-4 alkyl nitrates at a coastal site in Hong Kong: Influence of photochemical formation and oceanic emissions.CHEMOSPHERE,194(2018),275-284. |
| MLA | Song, Junwei,et al."Seasonal variations of C-1-C-4 alkyl nitrates at a coastal site in Hong Kong: Influence of photochemical formation and oceanic emissions".CHEMOSPHERE 194.2018(2018):275-284. |
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| Seasonal variations （2046KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | Application Full Text | |
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