...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Geochemistry: exploration, environment, analysis >Evaluation of the bioavailability of potentially harmful elements in urban soils through ammonium acetate-EDTA extraction: a case study in southern Italy
【24h】

Evaluation of the bioavailability of potentially harmful elements in urban soils through ammonium acetate-EDTA extraction: a case study in southern Italy

机译：通过醋酸铵-EDTA萃取评估城市土壤中潜在有害元素的生物利用度：意大利南部的一个案例研究

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Bioavailability of some harmful elements in the urban soils of the cities of Avellino, Benevento, Caserta, Napoli and Salerno (Italy) has been evaluated through an analytical process based on an ammonium acetate-EDTA extraction followed by ICP-MS analysis. Comparison between concentration values obtained for the same samples by means of an aqua regia leach and a weaker extraction such as ammonium acetate-EDTA (AA-EDTA) demonstrates how some elements, mostly of anthropogenic origin in the study areas (e.g. Cd, Cu, Pb, Zn), are more easily available to the biological cycle and thus more harmful to human health than others of strictly geogenic origin (e.g. As, TI and V), depending on their chemical binding in the crystalline lattice of the soil minerals. Determination of elemental bioavailability can help to evaluate the environmental risks of human exposure and to redefine the local intervention levels for risk assessment based on a better knowledge of the geochemical background concentrations.
机译：阿韦利诺，贝内文托，卡塞塔，那不勒斯和萨勒诺（意大利）城市土壤中某些有害元素的生物利用度已通过基于乙酸铵-EDTA萃取的分析过程进行ICP-MS分析，进行了评估。通过王水浸出和较弱的萃取物（例如乙酸铵-EDTA（AA-EDTA））获得的相同样品的浓度值之间的比较表明，研究区域中某些元素（大部分为人为来源）（例如Cd，Cu，铅，锌），比起严格地缘起源的其他元素（例如砷，钛和钒），更容易进入生物循环，因此对人体健康的危害更大，这取决于它们在土壤矿物晶体晶格中的化学结合。确定元素生物利用度有助于更好地了解地球化学背景浓度，从而有助于评估人类暴露的环境风险，并重新定义当地的干预措施以进行风险评估。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号