期刊
ATMOSPHERIC RESEARCH
卷 132, 期 -, 页码 199-208出版社
ELSEVIER SCIENCE INC
DOI: 10.1016/j.atmosres.2013.05.023
关键词
Mercury; Spatial; Temporal; Long term; Seoul; Anthropogenic
资金
- National Research Foundation of Korea (NRF)
- Ministry of Education, Science and Technology (MEST) [2010-0007876]
- Korea Basic Science Institute [T31603]
- Human Resources Development of the Korea Institute of Energy Technology Evaluation and Planning (KETEP)
- Korea government Ministry of Trade, Industry and Energy [20094010200030]
- Korea Evaluation Institute of Industrial Technology (KEIT) [20094010200030] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
The monitoring of total gaseous mercury (TGM) concentrations together with other trace gases and meteorological parameters was made at hourly intervals over 2-year period (1 January 2010 to 31 December 2011) at four urban monitoring sites: Guro-gu (G), Nowon-gu (N), Songpa-gu (S), and Yongsan-gu (Y) in Seoul, Korea. The mean concentrations of TGM at these sites were found to span the range of 3.28 (Y) to 3.47 ng m(-3) (N). Inspection of the seasonal patterns indicates that the maximum concentrations (ng m(-3)) occur at different times of year across the four sites: winter at N (3.67 +/- 1.77), fall at S (3.64 +/- 1.12), summer at G (3.61 +/- 1.51), and spring at Y (3.40 +/- 126). The long-term trend in Hg concentrations, when also considering data sets from previous studies, suggests modest reductions in concentrations at all four sites, from 2.89 to 4.49 ng m(-3) in 2004 and from 2.49 to 3.42 ng m(-3) in 2011. (C) 2013 Elsevier B.V. All rights reserved.
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