Accumulation Characteristics and Chemical Speciation of Cd, Zn and Pb in Soils Impacted by a Pb-Zn Mining AreaReportar como inadecuado




Accumulation Characteristics and Chemical Speciation of Cd, Zn and Pb in Soils Impacted by a Pb-Zn Mining Area - Descarga este documento en PDF. Documentación en PDF para descargar gratis. Disponible también para leer online.

Chemistry in industry : Journal of Chemists and Chemical Engineers, Vol.66 No.1-2 February 2017. -

An exploratory study on soil contamination of Cd, Zn, Pb was carried out in the surroundings of a historical, abandoned Pb-Zn mining area in Hunan Province, China. The accumulation in soils and representative plants of Cd, Zn, Pb and their chemical speciation were investigated. The obtained results indicated that Cd, Zn and Pb presented a significant contamination compared with Environmental Quality Standards for Soils in China GB 15618-1995. The geoaccumulation index suggested the degree of contamination: Pb > Cd > Zn. The modified BCR sequential extraction results showed that Cd, Zn, and Pb exist in soil in a relatively unstable form, and will exert a bad effect on the plants grown in the soil. Heavy metals in oranges collected in the sampling area were tested to identify the extent of pollution. The results confirmed that the sampled oranges were polluted with Pb, which exceeded the national food safety standard by 3.4 – 6.3 times. Heavy metals in branches and leaves showed different accumulation characteristics than the fruits.



This work is licensed under a Creative Commons Attribution 4.0 International License.

heavy metals; chemical speciation; geoaccumulation index; oranges; accumulation



Autor: Shunhong Huang - ; Hunan Research Institute of Nonferrous Metals, Changsha 410 100, P.R. China Qian Li - ; Hunan Research Instit

Fuente: http://hrcak.srce.hr/



DESCARGAR PDF




Documentos relacionados