CHEN Yuying, WANG Guan, CHEN Jiao, et al. Magnetic Response of Heavy Metals Pollution in Urban Topsoil of Yangpu District, Shanghai City[J]. Bulletin of Soiland Water Conservation, 2017, 37(3): 28-34.
DOI:
CHEN Yuying, WANG Guan, CHEN Jiao, et al. Magnetic Response of Heavy Metals Pollution in Urban Topsoil of Yangpu District, Shanghai City[J]. Bulletin of Soiland Water Conservation, 2017, 37(3): 28-34. DOI: 10.13961/j.cnki.stbctb.2017.03.005.
Magnetic Response of Heavy Metals Pollution in Urban Topsoil of Yangpu District, Shanghai City
[Objective] The heavy metal pollution of topsoil from Yangpu District of Shanghai City was illustrated to provide scientific basis for the application of environmental magnetism in heavy metal pollution.[Methods] A systematic analysis of 17 topsoil samples collected from 5 functional areas in Yangpu District was conducted. The analysis involved magnetic characteristics and heavy metal concentration using magnetic method and traditional chemical method.[Results] The average magnetic susceptibility of the topsoil in Yangpu District was 2.42×10-6 m3/kg
and the soil was characterized by low-coercivity magnetite and coarse grain size particles. The values of magnetic parameters
including magnetic susceptibility(χlf) saturation isothermal remanent magnetization(SIRM)
the susceptibility of anhysteretic remanent magnetization(χARM)
χARM/χlf
χARM/SIRM
S-ratio(IRM-300/SIRM) and magnetically hard isothermal remanent magnetization(HIRM))
were high in industrial and traffic area. The concentrations of Zn
Pb
Cu
and Cr were much higher than the background values. The relatively high heavy metal values were found concentrated in industrial
traffic and residential areas. Generally
the pollution loading index(PLI) value was 1.962
belonging to mild contamination. Except in industrial area
the contents of heavy metal in other areas were significantly correlated with magnetic parameters. χlf
SIRM and HIRM can be generally regarded as good indicators of heavy metal concentration of topsoil in Yangpu District.[Conclusion] Environmental magnetism is capable of indicating heavy metal pollution in topsoil.
Bityukova L, Scholger R, Birke M. Magnetic susceptibility as indicator of environmental pollution of soils in Tallinn[J]. Physics & Chemistry of the Earth (Part A):Solid Earth & Geodesy, 1999,24(9):829-835.
Canbay M, Aydin A, Kurtulus C. Magnetic susceptibility and heavy-metal contamination in topsoils along the Izmit Gulf coastal area and IZAYTAS(Turkey)[J]. Journal of Applied Geophysics, 2010,70(1):46-57.
Kawasaki K, Horikawa K, Sakai H. Environmental magnetism of roadside soil contamination in the restricted Bijyodaira Area of Mt. Tateyama, Toyama, Janpan[J]. Asian Journal of Water Environment and Pollution, 2015,12(2):1-11.
Liu Dexin, Ma Jianhua, Sun Yanli, et al. Spatial distribution of soil magnetic susceptibility and correlation with heavy metal pollution in Kaifeng City, China[J]. Catena, 2016,139:53-60.
Lu S G, Bai S Q, Xue Q F. Magnetic properties as indicators of heavy metals pollution in urban topsoils:A case study from the city of Luoyang, China[J]. Geophysical Journal International, 2007,171(2):568-580.
Zoller W H, Gladney E S, Duce R A. Atmospheric concentrations and sources of trace metals at the South Pole[J]. Science, 1974,183(4121):198-200.
Angulo E. The Tomlinson pollution load index applied to heavy metal "Mussel-Watch" data:A useful index to assess coastal pollution[J].Science Total Environment, 1996,187(1):19-56.
Shi R, Cioppa M T. Magnetic survey of topsoils in Windsor-Essex County, Canada[J]. Journal of Applied Geophysics, 2006,60(3):201-212.
Hu Xuefeng, Su Yu, Ye Rong, et al. Magnetic properties of the urban soils in Shanghai and their environmental implications[J]. Catena, 2007,70:428-436.
Heller F, Strzyszcz Z, Magiera T. Magnetic record of industrial pollution in forest soils of Upper Silesia, Poland[J]. Journal of Geophysical Research:Solid Earth, 1998,103(B8):17767-17774.
Cornell R M, Schwertmann U. The Iron Oxides:Structure, Properties, Reactions, Occurrences and uses[M]. John Wiley & Sons, 2003.