广西5城市农产品铅镉污染分析

目的了解广西壮族自治区5城市主要农产品铅镉污染情况。方法在严格的质量控制下，对5个城市8类农产品进行铅镉污染监测。结果共监测8类588件农产品，获得923个有效监测数据。其中铅污染监测429件农产品，3个市的皮蛋污染严重，铅超标率均在50％～75％；南宁市蔬菜、黄豆铅污染超标均在30％以上；百色市牛奶超标率达到100％；而镉污染监测494件农产品，北海市螺、蟹镉污染超标率分别达到93．0％，82．0％；3个市肾镉超标均在80％以上；南宁、玉林市大米镉超标率均为28．6％，南宁市蔬菜超标率24．3％；南宁市大白菜、白萝卜、胡萝卜、四季豆等共9份农产品铅、镉同时超标，双重超标率达到15．2％（9／59）。结论农产品中存在铅镉污染，应加强综合治理。减少环境污染。

Analysis on lead and cadmium contamination of farm product in five cities of Guangxi

Objective To investigate the lead and cadmium contamination of main farm product in five cities of Guangxi.Methods Under the strict quality control,8 types of main farm products in 5 cities were monitored for lead and cadmium.Results There was total 923 significant data monitored from 588 samples which belonged to 8 foods.Lead contamination was mornitored to 429 samples.Serious lead contamination was found in preserved eggs in three cities.The standard-exceeding rate was 50% to 75%.As for lead contamination,the standard-exceeding rate of vegetables and soybeans was over 30% in Nanning while the rate of milk reached 100% in Baise city.With regard of cadmium contamination,the standard-exceeding rate of shells and crabs was respectively 93.0% and 82.0%.In Beihai that rate of animal kidneys was over 80% in three cities;the standard-exceeding rate in rice was 28.6% in Nanning and Yulin.In addition,that rate of vegetable was 24.3% in Nanning.Also in Nanning,lead and cadmium contamination was found in nine pieces of farm products including Beijing cabbage,white turnip,radish and kidney bean,etc.Double standard-exceeding rate was 15.2%(9/59).Conclusion Comprehensive management and avoiding environmental pollution should be strengthened.