永州市畜禽养殖场周边土壤重金属污染现状评价

Evaluation on Heavy Metal Pollution Status in Surrounding Soil of Livestock and Poultry Farms in Yongzhou

[目的]掌握永州市畜禽养殖场周边土壤环境质量。[方法]选取永州市具有代表性的畜禽养殖场周边土壤进行重金属监测与调查研究,选择Cd、Hg、As等12种重金属元素作为监测对象,开展了现场调查、勘查布点、样品采集、样品制备、实验室分析等工作。[结果]永州市土壤污染现状与主要污染物为Cd、As、Cu、Zn、Ni,15个土壤点位中有8个点位属于轻度污染,未发现中度和重度污染。[结论]永州市畜禽养殖场周边土壤受到不同程度的污染,亟需制订相关污染治理对策。

Objective] The aim was to grasp environmental quality of surrounding soil of livestock and poultry farms in Yongzhou City .[Meth-od] Heavy metal monitoring and investigation was conducted on surrounding soil of several typical livestock and poultry farms in Yongzhou City . Selecting 12 heavy metal elements such as Cd, Hg, As as monitoring object, field investigation, exploration sites, sample collection, sample preparation, laboratory analysis were conducted.[Result] The main contaminants included Cd, As, Cu, Zn, Ni, 8 of the 15 soil points were slightly polluted, and no moderate or severe pollution was found.[Conclusion] The surrounding soil of livestock and poultry farms in Yongzhou City is polluted to different degrees, so it is urgent to formulate relevant pollution control measures.