Nabulo G,Young S D,Black C R.Assessing risk to human health from tropical leafy vegetables grown on contaminated urban soils[J].Science of the Total Environment,2010,408:22,5338-5351.
Lei BaoKun,Fan MingSheng,Chen Qing,et al.Soil and vegetables enrichment with heavy metals from geological sources in Gilgit,northern Pakistan[J].Ecotoxicology and Environmental Safety,2010,73:7,1820-1827.
Massas I,Ehaliotis C,Gerontidis S,et al.Elevated heavy metal concentrations in top soils of an Aegean island town(Greece):total and available forms,origin and distribution[J].Environmental Monitoring and Assessment,2009.151:1 /4,105-116.