Evaluation on Heavy Metal Pollution and Its Risk in Soils from Vegetable Bases of Hangzhou

With the purpose of investigation on heavy metal contamination in soils from vegetable bases of Hangzhou, adopting field investigation and indoor analysis methods, the contents of heavy metals as Cu, Zn, Pb, Cd, Cr, As and Ni, together with their relevance to the physicochemical properties of the 20...

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Bibliographic Details
Published inHuanjing kexue Vol. 37; no. 6; p. 2329
Main Authors Gong, Meng-Dan, Zhu, Wei-Qin, Gu, Yan-Qing, Li, Shu-Ying, Jiana, Ti, Tuni, Ke
Format Journal Article
LanguageChinese
Published China 08.06.2016
Subjects
heavy metal
pollution evaluation
soil
vegetable
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Summary:With the purpose of investigation on heavy metal contamination in soils from vegetable bases of Hangzhou, adopting field investigation and indoor analysis methods, the contents of heavy metals as Cu, Zn, Pb, Cd, Cr, As and Ni, together with their relevance to the physicochemical properties of the 203 soils from 30 vegetable bases in 10 districts of Hangzhou were studied. The results showed that the contents of heavy metals such as Zn,Cr,As,Ni generally didn't exceed the standard, while the contents of heavy metals such as Cu, Pb, Cd exceeded it. The results from synthetic pollution evaluation showed that the soils were slightly polluted in soils from vegetable bases of Hangzhou, which were mainly caused by Cd pollution. Furthermore, there was slight potential ecological hazard for Cu, Zn, Pb, Cr, As and Ni but strong potential ecological hazard for Cd, and medium comprehensive ecological hazard as a whole for all the heavy metals in soils from vegetable bases of Hangzhou. The correlation analysis indicated th
ISSN:0250-3301
DOI:10.13227/j.hjkx.2016.06.042