[Geogenic distribution and baseline concentrations of cadmium in surficial soil of Guiyang, China].
The characteristics of environmental geochemistry of heavy metal pollutant cadmium (Cd) in the surficial soil of Guiyang, Guizhou, China was studied. The baseline concentration of Cd in soil and the geochemistry norms have been established to distinguish the nature or artificial influence on the environment. The statistical analysis indicated that the baseline of Cd in Guiyang was 0.068 mg/kg. Geoaccumulation index analysis indicated that the unpolluted surface soils accounts for 40%, and 19% between nonpollution to mid-pollution, 14% for mid-pollution, 19% between mid-pollution to severe pollution, 7% for severe pollution, only 1% between severe pollution to super severe pollution. The maximum of Cd contamination degree (CD) is 12.1. CD analysis indicated that the unpolluted surface soils accounts for 57.9%.
Wang
Ji
J
Geography & Biology Science College, Guizhou Normal University, Guiyang 550001, China. wangji@gznu.edu.cn
Wang
Shi-Jie
SJ
Ouyang
Zi-Yuan
ZY
D002104:Cadmium / Q000032:analysis / Q000737:chemistry*; D002681:China; D004784:Environmental Monitoring / Q000379:methods*; D012989:Soil Pollutants / Q000032:analysis / Q000737:chemistry*
D012989:Soil Pollutants; D002104:Cadmium