Abstract：
:A detailed assessment of vanadium contamination characteristics in China was conducted based on the first national soil pollution survey. The map overlay analysis was used to evaluate the contamination level of vanadium and the non-carcinogenic risk assessment model was calculated to quantify the vanadium exposure risks to human health. The results showed that, due to the drastically increased mining and smelting activities, 26.49% of soils were contaminated by vanadium scattered in southwest of China. According to Canadian soil quality guidelines, about 8.6% of the national soil pollution survey samples were polluted, and pose high non-carcinogenic risks to the public, especially to children living in the vicinity of heavily polluted mining areas. We propose the area near the boundary of Yunnan, Guizhou, Guangxi, and Sichuan provinces as priority control areas due to their higher geochemical background or higher health risks posed to the public. Finally, recommendations for management are proposed, including minimization of contaminant inputs, establishing stringent monitoring program, using phytoremediation, and strengthening the enforcement of relevant laws. Therefore, this study provides a comprehensive assessment of soil vanadium contamination in China, and the results will provide valuable information for China's soil vanadium management and risk avoidance.
journal_name
Chemospherejournal_title
Chemosphereauthors
Yang J,Teng Y,Wu J,Chen H,Wang G,Song L,Yue W,Zuo R,Zhai Ydoi
10.1016/j.chemosphere.2016.12.058subject
Has Abstractpub_date
2017-03-01 00:00:00pages
635-643eissn
0045-6535issn
1879-1298pii
S0045-6535(16)31778-7journal_volume
171pub_type
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