Development of a chemical test for bioavailability of trace elements in soils

土壤中微量元素生物利用度化学测试的开发

• 批准号: 320450-2004
• 负责人: Hendershot, William
• 金额: $ 0.4万
• 依托单位: McGill University
• 依托单位国家: 加拿大
• 项目类别: Collaborative Research and Development Grants
• 财政年份: 2007
• 资助国家: 加拿大
• 起止时间: 2007-01-01 至 2008-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=361875
• 关键词: Development; chemical; test; bioavailability; trace

Development of a chemical test for bioavailability of trace elements in soils The proposed research would involve cooperation among McGill University, Noranda-Falconbridge, their environmental consultants involved in evaluating the toxicity of soils near mining, smelting or refining centers and the Quebec Ministry of Environment.  Noranda is currently undertaking risk assessments near some of their industrial sites in Sudbury (Ontario), Valleyfield and Murdochville (Quebec) and, as part of that study, will be doing toxicity tests with soil living animals and plants.  We propose to carry out development and testing of techniques to estimate trace element (As, Cd, Co, Cr, Cu, Mo, Mn, Ni, Pb, Se, and Zn) using chemical extraction techniques and comparing the values obtained to the results of toxicity tests carried out for Noranda.  By examining the relationships between different extractants and measures of toxicity over a wide range of soil properties, we expect to be able to identify the most suitable method to use in estimating bioavailability.

拟议的研究将涉及麦吉尔大学、诺兰达-鹰桥大学及其参与评估采矿、冶炼或精炼中心附近土壤毒性的环境顾问和魁北克环境部之间的合作。诺兰达目前正在其位于安大略省萨德伯里（Sudbury）、瓦利菲尔德（Valleyfield）和魁北克省默多克维尔（Murdochville）的一些工业基地附近进行风险评估，作为该研究的一部分，将对土壤动物和植物进行毒性测试。我们建议开发和测试使用化学萃取技术估算微量元素（As、Cd、Co、Cr、Cu、Mo、Mn、Ni、Pb、Se和Zn）的技术，并将获得的值与为诺兰达进行的毒性测试结果进行比较。通过研究不同萃取剂与各种土壤性质的毒性测量之间的关系，我们希望能够确定最适合用于估计生物利用度的方法。