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[目的]评价山东省蔬菜基地灌溉水重金属环境质量。[方法]对山东省主要蔬菜产地的灌溉水进行了重金属Hg、Cd、As、六价Cr、Pb、Cu和Zn含量的抽样调查分析,并采用单项质量指数与综合质量指数相结合的方法对重金属的环境质量状况进行了评价。[结果]寿光、莱阳、金乡和章丘4个蔬菜产地灌溉水中各重金属的平均含量均远低于《食用农产品产地环境质量评价标准》(HJ332-2006)规定的限值,未发现重金属含量超标现象;4地灌溉水重金属的单项质量指数均小于0.5,综合质量指数分别为0.3178、0.3204、0.2326和0.2607,灌溉水环境质量均为1级。[结论]4个蔬菜产地的灌溉水环境质量属于清洁水平,适宜作为无公害蔬菜的灌溉用水。
[Objective] The research aimed to evaluate the environmental quality of heavy metals in irrigation water in vegetable bases in Shandong Province. [Method] The sampling and analysis of heavy metal Hg, Cd, As, hexavalent Cr, Pb, Cu and Zn in irrigation water of main vegetable producing areas in Shandong Province were conducted. The method of combining single quality index and comprehensive quality index The environmental quality of heavy metals was evaluated. [Result] The average contents of heavy metals in irrigation water of four vegetable producing areas in Shouguang, Laiyang, Jinxiang and Zhangqiu were much lower than the limits of “Environmental Quality Evaluation Criteria of Edible Agricultural Products Producing Area” (HJ332-2006), and no heavy metal content was found The single quality index of heavy metals in irrigation water was less than 0.5, and the integrated quality index was 0.3178, 0.3204, 0.2326 and 0.2607, respectively. The quality of irrigation water environment was Grade 1. [Conclusion] The quality of irrigation water environment in 4 vegetable producing areas belongs to the clean level, which is suitable for irrigation water of pollution-free vegetables.