| DOI: | 10.1016/j.atmosenv.2014.04.039
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| Scopus记录号: | 2-s2.0-84900791873
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| 论文题名: | Present and long-term pollution status of airborne copper in major urban environments |
| 作者: | Kim K; -H
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| 刊名: | Atmospheric Environment
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| ISSN: | 0168-2563
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| EISSN: | 1573-515X
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| 出版年: | 2014
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| 卷: | 94 | | 起始页码: | 1
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| 结束页码: | 10
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| 语种: | 英语
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| 英文关键词: | Atmosphere
; Copper (Cu)
; Emission
; Long-term
; Spatial
; Toxic metal
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| Scopus关键词: | Earth atmosphere
; Neutron emission
; Urban planning
; Concentration levels
; Environmental behavior
; Long-term
; Maximum concentrations
; Particulate matter emissions
; Spatial
; Total suspended particulates
; Toxic metals
; Copper
; copper
; atmospheric pollution
; concentration (composition)
; copper
; pollution monitoring
; suspended particulate matter
; urban ecosystem
; air pollution
; airborne particle
; ambient air
; article
; particulate matter
; priority journal
; South Korea
; urban area
; South Korea
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| Scopus学科分类: | Environmental Science: Water Science and Technology
; Earth and Planetary Sciences: Earth-Surface Processes
; Environmental Science: Environmental Chemistry
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| 英文摘要: | The concentrations of many harmful metals in air have been continuously decreasing around the world especially in North America and Western Europe, although deviations from such trend have been observed elsewhere such as East Asia. To help understand spatiotemporal factors governing the environmental behavior of hazardous metals, the concentrations of copper (Cu) in total suspended particulate (TSP) fractions were analyzed in the seven major cities in South Korea over a two decadal period (1991 through 2012). Unlike other metal species, there was no distinctive seasonal trend (e.g., spring/winter maximum and summer minimum) in the Cu levels in most South Korean cities. The long-term trend of Cu, if assessed by its annual mean values, recorded two contrasting trends for each decade: the earlier period (from 1991 to early 2000) is characterized by high variabilities with a maximum concentration of 243ngm-3 (in 2003), while the later period showed an appreciable (several-fold) reduction to the latest (2012) available concentration level of 35.7ngm-3. As such, the present Cu levels in Korea should approach those commonly seen in moderately clean urban environments elsewhere. The overall results suggest that South Korean regulatory efforts to control particulate matter (PM) emissions have greatly influenced the present Cu levels consistent with the observed temporal trends of airborne PM. © 2014 Elsevier Ltd. |
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| 资源类型: | 期刊论文
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| 标识符: | http://119.78.100.158/handle/2HF3EXSE/81213
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| Appears in Collections: | 气候变化事实与影响
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作者单位: | Department of Civil and Environmental Engineering, Han Yang University, Seoul 133-791, South Korea
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| Recommended Citation: | |
Kim K,-H. Present and long-term pollution status of airborne copper in major urban environments[J]. Atmospheric Environment,2014-01-01,94
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