Chang C Y,Yu H Y,Chen J J,et al.Accumulation of heavy metals in leaf vegetables from agricultural soils and associated potential health risks in the Pearl River Delta, South China[J].Environmental monitoring and assessment,2014,186(3):1547-1560.
[2]
Yang P,Mao R,Shao H,et al.An investigation on the distribution of eight hazardous heavy metals in the suburban farmland of China[J].Journal of hazardous materials,2009,167(1):1246- 1251.
[3]
Khan S,Cao Q,Zheng Y M,et al.Health risks of heavy metals in contaminated soils and food crops irrigated with wastewater in Beijing, China[J]. Environmental Pollution,2008,152(3): 686-692.
Chang C Y,Yu H Y,Chen J J,et al.Accumulation of heavy metals in leaf vegetables from agricultural soils and associated potential health risks in the Pearl River Delta, South China[J].Environmental monitoring and assessment,2014,186(3):1547-1560.
Guo G L,Zhou Q X,Koval P V,et al.Speciation distribution of Cd,Pb,Cu, and Zn in contaminated Phaeozem in north-east China using single and sequential extraction procedures[J].Soil Research, 2006,44(2):135-142.
[9]
Pietrzykowski M,Socha J,van Doorn N Gunawardana S. Linking heavy metal bioavailability (Cd,Cu,Zn and Pb) in Scots pine needles to soil properties in reclaimed mine areas[J].Science of the Total Environment, 2014,470:501-510.
[10]
Gunawardana C,Goonetilleke A,Egodawatta P,et al.Source characterisation of road dust based on chemical and mineralogical composition[J].Chemosphere,2012,87(2):163-170.
Zhang Z,Abuduwaili J,Jiang F.Determination of occurrence characteristics of heavy metals in soil and water environments in Tianshan Mountains,Central Asia[J].Analytical Letters,2013, 46(13):2122-2131.