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

开发土壤中痕量元素生物有效性的化学测试拟议的研究将涉及麦吉尔大学、诺兰达-鹰桥公司、他们的环境顾问之间的合作，这些公司参与评估采矿、冶炼或精炼中心附近土壤的毒性，以及魁北克环境部。诺兰达公司目前正在其位于安大略省萨德伯里、河谷和魁北克省的一些工业地点附近进行风险评估，作为研究的一部分，将对土壤中活的动植物进行毒性测试。我们建议开发和测试估计痕量元素(As、Cd、Co、Cr、Cu、Mo、Mn、Ni、Pb、通过研究不同萃取剂之间的关系和对广泛土壤性质的毒性测量，我们期望能够确定最适合用于估计生物有效性的方法。

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.