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| 珠三角主要工业区周边蔬菜产地土壤重金属污染调查分析 | |
| 引用本文： | 胡霓红,文典,王富华,孙芳芳,王其枫,万凯.珠三角主要工业区周边蔬菜产地土壤重金属污染调查分析[J].热带农业科学,2012,32(4):67-71. |
| 作者姓名： | 胡霓红 文典 王富华 孙芳芳 王其枫 万凯 |
| 作者单位： | 1. 华中农业大学资源与环境学院,湖北武汉,430070 2. 广东省农业科学院农产品质量安全与标准研究中心,广东广州,510640 3. 农业部蔬菜水果质量监督检测测试中心,广东广州,510640 |
| 基金项目： | “十一五”国家科技支撑计划重点项目(No.2009BADB7B01);省部产学研合作专项(No.2010A09020029-14) |
| 摘 要： | 采集珠三角地区主要工业区周边蔬菜产地土壤,研究土壤中铅(Pb)、镉(Cd)、汞(Hg)、砷(As)、铬(Cr)5种重金属的含量与分布特征。参照国家土壤环境质量标准(GB15618-1995)中的二级标准,采用单项污染指数法和综合污染指数法,对其重金属污染现状进行评价。结果表明:232份土壤样品中,Cd、Hg、As、Cr的超标率分别为45.06%、7.73%、5.15%和1.29%,未见Pb超标;37.34%的土壤受到不同程度的污染,Cd污染情况最为严重,Hg污染次之;土壤污染以单一重金属污染为主,未出现3种及以上重金属复合污染。各地污染状况呈现区域差异,东莞地区受污染的样品比例较大,珠海和广州的污染情况相对较轻。该区域的土壤重金属污染形势不容乐观,其可能给农业生产带来的风险应引起重视。 |
| 关 键 词： | 珠三角 工业区 菜地土壤 重金属 污染 |
Investigation and Analysis of Heavy Metals in Vegetable Producing Soils around Main Industrial Areas in the Pearl River Delta |
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| HU Nihong,WEN Dian,WANG Fuhua,SUN Fangfang,WANG Qifeng,WAN Kai.Investigation and Analysis of Heavy Metals in Vegetable Producing Soils around Main Industrial Areas in the Pearl River Delta[J].Chinese Journal of Tropical Agriculture,2012,32(4):67-71. | |
| Authors: | HU Nihong WEN Dian WANG Fuhua SUN Fangfang WANG Qifeng WAN Kai |
| Institution: | 1 Center for Quality and Safety and Standard Research of Agricultural Products, Guangdong Academy of Agricultural Sciences,Guangzhou,Guangdong 510640; 2 College of Resources and Environment,Huazhong Agricultural University,Wuhan,Hubei 430070; 3 Ministry of Agriculture Supervision and Testing Center for Vegetable and Fruit Quality, Guangzhou,Guangdong 510640) |
| Abstract: | Soil samples were collected from vegetable fields around main industrial areas in the Pearl River Delta.The concentrations of lead(Pb),cadmium(Cd),mercury(Hg),arsenic(As) and chromium(Cr) were studied.Their pollution status were evaluated according to class II of Soil Environmental Quality Standard(GB15618-1995),using the single pollution index and comprehensive pollution index methods.The results indicated that the over standard rate of Cd,Hg,As,Cr was 45.06%,7.73%,5.15% and 1.29%,respectively,among the 232 soil samples,and no samples showed Pb concentration exceeding the threshold.37.34% of the soil samples had been polluted at different degrees,and Cd was the main contributor,followed by Hg.Soil polluted by three or more heavy metals were not observed.Soil pollution situation presented regional differences: the proportion of contaminated samples in Dongguan area was larger,whereas the pollution situation in Zhuhai and Guangzhou was better.Heavy metal pollution status of soils around industrial areas is not optimistic,which should be paid enough attention. |
| Keywords: | pearl river delta industrial areas vegetable field heavy metals pollution |
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