城镇再生水灌溉后重金属对作物的安全性研究

在城镇再生水解决农业用水缺少的同时,伴随产生的由于再生水灌溉引起农作物中重金属的食品安全问题值得重视。经过2 a再生水灌溉冬小麦中重金属含量的研究,结果表明,再生水水质较好,符合农业灌溉用水;灌溉后对土壤中重金属含量影响不大,认为用再生水对作物进行短期灌溉不影响土壤环境安全,且再生水灌溉后作物重金属含量低于相应食品卫生安全标准,可以放心食用。

Study on Safety of Heavy Mental in Urban Reclaimed Water Irrigation to Crops

In use of reclaimed water to meet the farming need, a study on the safety of heavy mental in reclaimed water irrigation to crops was conducted. The results of 2 years＇ study show that the reclaimed water has relatively high quality to meet the needs as irrigation water and the heavy mental influence to the irrigated soil is not so serious. It is concluded that there will be no negative influence for short term use of reclaimed water irrigation for soil environment and the reclaimed water irrigation could meet the needs of food safety as well.