广东省蔬菜硝酸盐含量的调查与分析  

Investigation and analysis of nitrate contents of vegetables in Guangdong

作　　者：杜应琼[1,2] 王富华[1,2] 李乃坚[1,2] 邓义才[1,2] 苏青云[1,2] 殷秋妙 赖穗春[1,2] 徐爱平[1,2] 

机构地区：[1]广东省农业科学院蔬菜研究所,广东广州510640 [2]农业部蔬菜品质监督检验测试中心,广东广州510640

出　　处：《生态环境》2004年第1期19-22,共4页Ecology and Environmnet

基　　金：广东省自然科学基金项目(010152;032007);广东省重大专项(A205);广东省科技攻关项目(2002C20510);广东省农业科学院发展基金项目(2003-发展-14)

摘　　要：为了解广东省蔬菜硝酸盐含量状况,分别对阳山、番禺、深圳等蔬菜生产基地和深圳市各流通领域中蔬菜的硝酸盐含量进行跟踪调查。结果表明,广东省蔬菜生产基地的蔬菜硝酸盐含量超标严重,特别是市民食用量较大的几种叶类蔬菜超标最为明显。定点监测结果表明,蔬菜的硝酸盐含量与蔬菜的新鲜程度呈明显的正相关,蔬菜越新鲜其硝酸盐含量越高;在2次定点监测中,蔬菜硝酸盐平均含量都呈现出如下的趋势:生产基地的>批发市场的>超市和农贸市场的。kinds, 24 varieties, 242 samplings of vegetables collected from the main vegetable bases in Guangdong province including Shenzhen city were analysed to investigate the nitrate content of vegetables. The results indicated that nitrate pollution of vegetables in Guangdong was serious, and that of leafy vegetables in particular, was higher than related hygienic standard. Not only did the internal factors (including variety), but also the external ones such as fertilizer, temperature, etc., affected the contents of nitrate in vegetables. A series of monitoring results showed that the fresh level and the nitrate content of vegetables had a significant and positive correlation, and there was a tendency towards the average nitrate contents of vegetables as follows: that of vegetable base > of terminal market > of supermarket and farming trade market.

关 键 词：蔬菜 硝酸盐 农药污染 重金属污染 分级标准 限量标准 

分 类 号：X835[环境科学与工程—环境工程]