DOI: 10.1016/j.atmosenv.2015.06.017
Scopus记录号: 2-s2.0-84941570666
论文题名: Magnetic response to air pollution recorded by soil and dust-loaded leaves in a changing industrial environment
作者: Cao L ; , Appel E ; , Hu S ; , Yin G ; , Lin H ; , Rösler W
刊名: Atmospheric Environment
ISSN: 0168-2563
EISSN: 1573-515X
出版年: 2015
卷: 119 起始页码: 304
结束页码: 313
语种: 英语
英文关键词: Atmospheric pollution
; Environmental magnetism
; Heavy metal pollution
; Leaves
; Linfen city
; Soil
Scopus关键词: Air pollution
; Aromatic hydrocarbons
; Coal combustion
; Heavy metals
; Land use
; Magnetic susceptibility
; Magnetism
; Pollution
; Pollution control
; Polycyclic aromatic hydrocarbons
; Soil testing
; Soils
; Atmospheric pollution
; Environmental magnetism
; Heavy metal pollution
; Leaves
; Linfen city
; Soil pollution
; chromium
; copper
; heavy metal
; iron
; lead
; magnetite
; nickel
; polycyclic aromatic hydrocarbon
; atmospheric particle
; atmospheric pollution
; coal
; combustion
; grain size
; heavy metal
; industrial emission
; leaf
; magnetic susceptibility
; magnetite
; PAH
; soil analysis
; soil profile
; topsoil
; urban atmosphere
; vertical distribution
; air pollution
; Article
; atmosphere
; magnetism
; particulate matter
; plant leaf
; priority journal
; seasonal variation
; soil
; China
; Linfen
; Shanxi
Scopus学科分类: Environmental Science: Water Science and Technology
; Earth and Planetary Sciences: Earth-Surface Processes
; Environmental Science: Environmental Chemistry
英文摘要: Linfen city is one of the World's most polluted cities due to uncontrolled industrial activities of coal combustion releasing huge amounts of heavy metals (HMs) and polycyclic aromatic hydrocarbons (PAHs) into the atmosphere. We used soil and leaves as receptors for atmospheric particulate matter to test the efficiency of magnetic approach for assessing and discriminating past and present pollution. The results indicate that strong magnetic particles in topsoil and leaf samples are mainly low-coercivity magnetite, occurring in a larger grain-size range than in background soil, which is helpful to separate anthropogenic and natural sources. Topsoil magnetic signals reflect pollutants, which accumulated over the last decades. Differences in the vertical distribution of magnetic properties between undisturbed and disturbed (cultivated) soil profiles show that the plowing depth is the most important factor for migration of pollutants in cultivated soils. Magnetic susceptibility (MS) values of leaf samples reflect the present state of pollution and can even trace seasonal changes. Spatial maps of MS identify differences of the past and present environmental conditions caused by the shutdown of industrial sites within the last decade. Correlation coefficients between analyzed HM contents (Fe, Cr, Ni, Cu, Pb) and MS values are significantly positive in leaf samples, and still moderate in topsoil samples. Our results demonstrate the practical and economical value of magnetic techniques for pollution assessment, also for the studied case with a complex pollution history, a relatively high magnetic background and disturbing land use. © 2015 Elsevier Ltd. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/81543
Appears in Collections: 气候变化事实与影响
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作者单位: Department of Geosciences, University of Tübingen, Hölderlinstr.12, Germany; State Key Laboratory of Lake Science and Environment, Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences, Nanjing, China; Urban Ecology and Environment Research Center, Shanghai Normal University, Shanghai, China
Recommended Citation:
Cao L,, Appel E,, Hu S,et al. Magnetic response to air pollution recorded by soil and dust-loaded leaves in a changing industrial environment[J]. Atmospheric Environment,2015-01-01,119