Risk assessment of Cd in paddy soil and rice sample collected from an industrial park of Xiangtan

Abstract

Used the single factor index method and the potential ecological risk index were used to valuate Cd pollution and its potential risk in paddy soils around an industrial park in Xiangtan.The human health for a local adult also was analyzed.The results showed that the ranges of concentrations of Cd in soils were 1.27-4.22 mg/kg,indicating those paddy soils were suffered heavy Cd contamination.The potential ecological risk factors(Ei)for Cd in the soils were more than 320,demonstrating soil Cd contamination around industrial area.The hazard quotient of Cd in rice growth in those contaminated paddy soils ranged from 1.61-7.44,indicating that the potential health risk of Cd pollution was obvious.The local adult who consumed the contaminated rice was suffered from Cd pollution.