Yadav R K Goval B, Sharm R K, et al. Post-irrigation impact of domestic sewage effluent on composition of soils, crops and ground waterA case study[J]. Environment International, 2002, (28): 481-486.
[5]
Fjallborg. B, Dave. G.Toxicity of copper in sewage sludge[J]. Environment International, 2003, (28): 761-769.
McGrath D ,Zhang Chaosheng, Carton O T. Geostatistical analyses and hazard assessment on soil lead in Silvermines area, Ireland[J].Environmental Pollution, 2004, 127: 239-248.
[13]
Lakhan V C,Cabana K, LaValle P D. Heavy metal concentrations in surficial sediments from accreting and eroding areas along the coast of Guyana[J]. Environmental Geology, 2002, 42: 73-80.
[14]
Marjia Romic, Davor Romic. Heavy metals distribution on agriculture topsoils in urban area[J].Environmental Geology, 2003,43: 795-805.