珠江三角洲典型区域土壤重金属污染探查研究

Investigation on Heavy Metal Pollution in a Typical Area of the Pearl River Delta

以珠江三角洲典型区域研究高强度经济开发下土壤环境中重金属污染的状况。测定了84份样品中铜、锌、镉、铬、铅的含量水平。土壤中镉、铬、铅、镍、铜、锌的含量分别在0.166～0.433mgkg-1、2.28～94.28mgkg-1、20.36～143.3mgkg-1、2.29～63.55mgkg-1、4.8～65.1mgkg-1、10.06～131mgkg-1之间。从分析结果可以看出,镍、铅等元素在有些地方普遍偏高,且有的极为明显,已高出背景值108.3mgkg-1。其他元素也存在不同水平的富集,普遍高出背景值。

The pollution of heavy metal in soil under intensive economical development was studied in a typical area of the pearl river delta. The levels of Cadmium, Chromium, Lead, Nickel ,Copper, and Zinc in 84 soil samples were detected. The levels of Cadmium, Chromium, Lead, Nickel ,Copper, and Zinc were 0.166-0.433 mg kg^(-1),2.28-94.28 mg kg^(-1),20.36-143.3 mg kg^(-1),2.29-63.55 mg kg^(-1),4.8～65.1 mg kg^(-1),10.06～131 mg kg^(-1).The soil were contaminated by lead and nickel in great universality,and the other heavy metals exceeded the background values.