Investigation of heavy metal concentrations on urban soils, dust and vegetables nearby a former smelter site in Mortagne du Nord, Northern France
Investigation of heavy metal concentrations on urban soils, dust and vegetables nearby a former smelter site in Mortagne du Nord, Northern France
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DOI：
10.1065/jss2007.02.205
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发表时间：
2007-06-01
影响因子：
3.6
通讯作者：
Chateau, Gaelle
中科院分区：
文献类型：
--
作者：
Douay, Francis;Roussel, Helene;Chateau, Gaelle
在法国北部的Mortagne du Nord等前工业基地附近，土壤、灰尘和种植的蔬菜都受到重金属的污染，这对周围的人口构成了卫生风险。为了评价该场地不同暴露介质的污染水平，在原锌冶炼厂附近采集了26个城市表土样本、17个粉尘样本和38个蔬菜样本。城市土壤样本的镉和铅含量（除一个外）均超过了地区农业参考值。45%的蔬菜样本超过了欧洲食品限量，在学校操场室外停机坪地区采集的一个粉尘样本超过了法国设定的1000 μ g M-2的铅含量限值。Cd和Pb水平的波动取决于地面的用途（厨房花园、草坪、庭院）及其位置。由于距离原冶炼厂的距离与采样土壤上的铅浓度之间缺乏简单的相关性，因此我们认为人类活动对当地的城市污染有所贡献。在这种情况下，现在谁应该为土壤污染和人类暴露负责？
Environmental situations near former industrial sites like Mortagne du Nord (Northern France) in which the soil, dust and homegrown vegetables have been contaminated by heavy metals can represent a sanitary risk to the surrounding population. In order to evaluate the contamination level in different exposition media in this site, 26 urban topsoils, 17 dust and 38 vegetable samples were taken near the former zinc smelter site. All the observed levels on urban soil samples (except one) are over regional agricultural reference values for Cd and Pb. 45% of the vegetable samples are over the European foodstuff limits and one dust sample taken in the school playground outdoor tarmac area exceeds the French limit in dust set up at 1,000 mu g M-2 for Pb. The Cd and Pb levels fluctuate depending on the use of the ground (kitchen garden, lawn, courtyard) and its location. The lack of simple correlations between the distance from the former smelter site and the Pb concentrations on sampled soils let us think that human activities contributed in the local urban contamination. In this context, who is now responsible for the soil contamination and the human exposure?.