昆山市农产品产地环境质量监测与评价

为研究昆山市农产品产地环境质量,采用采样分析方法,对昆山市农产品产地的代表性土壤、灌溉水、渔业水质量进行了定点取样分析检测,在此基础上依据国家相关环境质量标准进行了单因子污染指数法和综合污染指数法评价。结果表明,该市58.1%的耕层土壤为安全、清洁,36.6%的耕层土壤处于警戒限,为尚清洁,3.8%的耕层土壤为轻污染,1.5%的耕层土壤为中污染;76.0%的灌溉水为安全、清洁,24.0%的灌溉水处于警戒限,为尚清洁;73.5%的渔业水为安全、清洁,23.5%的渔业水处于警戒限,为尚清洁,3%的渔业水为轻污染。

Environmental Quality Monitoring and Evaluation of Agricultural Areas in Kunshan City,China

In order to study the environmental quality of the agricultural areas in Kunshan City,the soil,irrigation water and fishery water quality in the agricultural areas of Kunshan City were analyzed by sampling method and then evaluated by single factor pollution index and composite pollution index according to the three national environmental quality standards including GB 15618—1995,GB 5084—2005 and GB 11607—1989. The results showed that：（1）The areas of unpolluted plough horizon soil was 58.1% of the total fields,but 36.6% was of warning level,3.8% was affected by light pollution,and 1.5% affected by medium pollution;（2）The areas of unpolluted irrigation water was 76.0% of the total,but 24.0% was of warning level;（3）The areas of unpolluted fishery water was 73.5%,but 23.5% was of warning level,and 3% affected by light pollution.