广州市主要蔬菜生产地汞含量调查及污染评价  

Evaluation on the Mercury Pollution of Main Vegetable Producing Areas in Guangzhou City

作　　者：刘小瑜[1] 谢世友[1,2] 魏秀国 郝秀东[1] 

机构地区：[1]西南大学地理科学学院,重庆400715 [2]西南大学三峡库区生态环境教育部重点实验室,重庆400715 [3]广东省生态环境土壤研究所,广州510650

出　　处：《湖北农业科学》2011年第15期3069-3071,共3页Hubei Agricultural Sciences

基　　金：国家"十一五"科技支撑计划项目(2006BAC01A16);国家林业局"948"项目(2009-4-20);重庆市自然科学基金重点项目(CSTC2009BA0002)

摘　　要：通过对广州市7个主要蔬菜生产地土壤汞含量进行采样测定,采用土壤环境质量标准值和广东省土壤背景值为标准对其单因子污染指数进行分析评价。结果表明,广州市蔬菜产地土壤汞含量较高,采集的60个样品中,超过0.05 mg/kg的样品达43个,其中黄埔区汞含量超标严重;从时间角度来看,广州市蔬菜产地土壤汞平均含量呈现出先下降后增长的趋势,近几年的增速较快;60个样品的汞污染指数为0.073～3.820,平均值为1.139。The mercury content in 60 soil samples from 7 main vegetable producing areas in Guangzhou were determined;and the mercury pollution situation of these areas were evaluated.Mercury contents of 26 samples were higher than the background mercury content of Guangzhou,and the contents of 43 samples were above 0.05 mg/kg.The single factor pollution indexes of 60 samples were between 0.073~3.820 with a mean value of 1.139.The mercury pollution in Huangpu district was the most serious.The mercury content of vegetables producing areas in Guangzhou decreased in the past,however increased rapidly in recent years.

关 键 词：蔬菜产地 土壤汞含量 污染评价 广州市 

分 类 号：X53[环境科学与工程—环境工程]