南安市耕地土壤重金属含量现状与污染防控对策

Present Situation of Heavy Metal Content in Cultivated Soil and Countermeasures for Pollution Control in Nan'an

摘要: 对南安市的95个农产品产地监测点的土样进行取样测定，分析土壤重金属含量，结果表明：监测点的砷、汞、镍、铜、锌等均处于安全范围内，鎘、铬、铅3种重金属有效含量超过安全值；符合安全级的监测点有66点，占69.5%；警戒级的有24点，占25.3%；限制级的有3点，占3.1%；高危级的有2点，占2.1%。根据检测分析结果提出相应的重金属污染防控措施。

Abstract: Soil samples from 95 monitoring sites of agricultural products in Nan'an City were sampled and determined, and the contents of heavy metals in soil were analyzed. The results showed that the contents of As, Hg, Ni, Cu, Zn were all in the safe range, and the effective contents of Cd, Cr and Pb exceeded the safety values. Among them, 66 monitoring points were in the safety level, 24 points were in alert level, 3 points were in the restricted level and 2 points were in the high-risk level, and accounting 69.5%, 25.3%, 3.1% and 2.1% respectively. According to the results of detection and analysis, corresponding measures for prevention and control of heavy metal pollution were put forward.