Heavy-metal Pollution Investigation and Health Risk Assessment for Vegetables in Cadmium Exceeded Cultivated Land

doi:10.11924/j.issn.1000-6850.casb15080080

Abstract

Abstract: A survey was carried out with the aim to investigate the contamination characteristics of heavy metals in edible parts of vegetables grown in mining area in Yueyang City, the health risk to local consumers was also studied. The concentrations of Cd and Pb in vegetables and soils were analyzed by atomic absorption instrument. The results showed that this region belonged to Cd exceeded soil, and the concentrations of Pb and Cd in edible parts of vegetables exceeded the limit standard. The Pb and Cd contents in vegetables were significantly different, the pollution index and enrichment index of leaf vegetables were higher than that of fruit vegetables. The results of health risk assessment showed that the local inhabitants had higher potential health risks by intake of leaf vegetables. Therefore, this region was not suitable for the cultivation of vegetables, and the cultivated land should be repaired and plantation structure should be adjusted.

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