Research Article
Concentrations, Spatial Distributions, and Sources of Heavy Metals in Surface Soils of the Coal Mining City Wuhai, China
Table 1
The statistical characteristics of concentrations of soil heavy metals in Wuhai (mg/Kg).
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aSoil background values in Inner Mongolia Autonomous Region. bGrade I of the Chinese Soil Environmental Quality Standard (GB15618-1995). cGrade II of the Chinese Soil Environmental Quality Standard, 6.5 < pH < 7.5 (GB15618-1995). |