توزیع فضایی و ارزیابی خطرات سلامتی انسان از فلزات سنگین در یک منطقه بازنشسته صنعتی پتروشیمی، جنوب چین-Spatial distribution and assessment of the human health risks of heavy metals in a retired petrochemical industrial area, South China

Petrochemical industries are widely distributed in China. As a negative consequence, heavy metals in petrochemical area can result in soil contamination. However, the relevant research of heavy metals contamination in petrochemical area was few. In this study, a total of 103 topsoil samples (< 20 cm) and 15 profile soil samples were collected and examined in a retired petrochemical 16
industrial area, South China. The results showed the mean contents of Hg, Cd, As, Pb, Ni and Cu were 0.18, 0.69, 16.22, 47.24, 31.62 and 93.06 mg·kg-1, respectively. The spatial distribution of six metals in topsoil was largely attributed to the industrial activities during the petroleum refining and transshipment process. Ni was the main pollutant in the petroleum refining process. While, the contamination of other metals mainly were caused by the leakage of the oil during transshipment.

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