滇池湖滨蔬菜种植区土壤污染物生态风险评价

Soil Environment and Pollutants Ecological Risk Assessment for the Vegetable Cultivation Farmland in Dianchi Lakeshore Region

选取典型滇池湖滨蔬菜种植区——昆明福保村为研究对象,进行土壤污染物生态风险分析,结合污染物空间分布规律研究,解析污染物来源。结果表明,土壤多环芳烃(Polycyclic Aromatic Hydro-carbons,PAHs)、有机氯(Organic Chlorine Pesticides,OCPs)、酞酸酯(Phthalic Acid Esters,PAEs)类污染物残留水平较低,但重金属含量相对较高,存在一定生态风险;区域内的印刷厂、造纸厂、彩印厂是土壤污染物的主要来源;滇池湖滨蔬菜种植区土壤环境质量尚为清洁,能够保障蔬菜产品品质安全。

This research was ranged in the typical area of vegetable cultivation in Dianchi lakeshore region named Fubao village. Ecological risk of soil pollution was evaluated; pollution sources were analyzed through the spatial distribution investigation. The result indicated that the concentration of PAHs and OCPs and PAEs in soil still were in a low level, however heavy metal would have slight adverse effect on the ecological environment with a relative high concentration. Printing plant and paper mill and color printing factory were the main sources of the soil pollutants in the target area. It implied that soil environment of vegetable cultivation in Dianchi lakeshore region was still at a clean level, and quality of the vegetable could be ensured.