Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.5194/acp-17-11655-2017 |
Impacts of large-scale circulation on urban ambient concentrations of gaseous elemental mercury in New York, USA | |
Mao, Huiting1; Hall, Dolly2; Ye, Zhuyun1; Zhou, Ying1; Felton, Dirk3; Zhang, Leiming4 | |
2017-09-28 | |
发表期刊 | ATMOSPHERIC CHEMISTRY AND PHYSICS
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ISSN | 1680-7316 |
EISSN | 1680-7324 |
出版年 | 2017 |
卷号 | 17期号:18 |
文章类型 | Article |
语种 | 英语 |
国家 | USA; Canada |
英文摘要 | The impact of large-scale circulation on urban gaseous elemental mercury (GEM) was investigated through analysis of 2008-2015 measurement data from an urban site in New York City (NYC), New York, USA. Distinct annual cycles were observed in 2009-2010 with mixing ratios in warm seasons (i.e., spring-summer) 10-20 ppqv (similar to 10-25 %) higher than in cool seasons (i.e., fall-winter). This annual cycle was disrupted in 2011 by an anomalously strong influence of the US East Coast trough in that warm season and was reproduced in 2014 associated with a particularly strong Bermuda High. The US East Coast trough axis index (TAI) and intensity index (TII) were used to characterize the effect of the US East Coast trough on NYC GEM, especially in winter and summer. The intensity and position of the Bermuda High appeared to have a significant impact on GEM in warm seasons. Regional influence on NYC GEM was supported by the GEM- carbon monoxide (CO) correlation with r of 0.17-0.69 (p similar to 0) in most seasons. Simulated regional and local anthropogenic contributions to wintertime NYC anthropogenically induced GEM concentrations were averaged at similar to 75% and 25 %, with interannual variation ranging over 67 %-83% and 17 %-33 %, respectively. Results from this study suggest the possibility that the increasingly strong Bermuda High over the past decades could dominate over anthropogenic mercury emission control in affecting ambient concentrations of mercury via regional buildup and possibly enhancing natural and legacy emissions. |
领域 | 地球科学 |
收录类别 | SCI-E |
WOS记录号 | WOS:000411884400005 |
WOS关键词 | SOUTHEASTERN UNITED-STATES ; ATMOSPHERIC MERCURY ; TEMPORAL VARIABILITY ; DIURNAL-VARIATIONS ; NEW-ENGLAND ; MONITORING STATIONS ; SPECIATED MERCURY ; NORTH-AMERICA ; CHINA ; DEPOSITION |
WOS类目 | Environmental Sciences ; Meteorology & Atmospheric Sciences |
WOS研究方向 | Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences |
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/17278 |
专题 | 地球科学 |
作者单位 | 1.SUNY Coll Environm Sci & Forestry, Dept Chem, Syracuse, NY 13210 USA; 2.Univ Maryland, Dept Atmospher & Ocean Sci, College Pk, MD 20742 USA; 3.New York State Dept Environm Conservat, Div Air Resources, Bur Air Qual Surveillance, Albany, NY 12233 USA; 4.Environm & Climate Change Canada, Air Qual Res Div, Sci & Technol Branch, Toronto, ON M3H 5T4, Canada |
推荐引用方式 GB/T 7714 | Mao, Huiting,Hall, Dolly,Ye, Zhuyun,et al. Impacts of large-scale circulation on urban ambient concentrations of gaseous elemental mercury in New York, USA[J]. ATMOSPHERIC CHEMISTRY AND PHYSICS,2017,17(18). |
APA | Mao, Huiting,Hall, Dolly,Ye, Zhuyun,Zhou, Ying,Felton, Dirk,&Zhang, Leiming.(2017).Impacts of large-scale circulation on urban ambient concentrations of gaseous elemental mercury in New York, USA.ATMOSPHERIC CHEMISTRY AND PHYSICS,17(18). |
MLA | Mao, Huiting,et al."Impacts of large-scale circulation on urban ambient concentrations of gaseous elemental mercury in New York, USA".ATMOSPHERIC CHEMISTRY AND PHYSICS 17.18(2017). |
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