权益分类	功能权益	普通用户	{{item.name}}会员
{{category.name}}	{{benefitItem.name}}

Comparative analysis of the potential of different organisms, food chains, and ecosystems to accumulate organic contaminants

比较分析不同生物体、食物链和生态系统积累有机污染物的潜力

基本信息

批准号：
227907-2010
负责人：
Wania, Frank
金额：
$ 3.64万
依托单位：
University of Toronto
依托单位国家：
加拿大
项目类别：
Discovery Grants Program - Individual
财政年份：
2014
资助国家：
加拿大
起止时间：
2014-01-01 至 2015-12-31
项目状态：
已结题

来源：
https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=546856
关键词：
Comparative analysis potential different organisms

项目摘要

Environmental organic chemists seek to understand, describe and predict how organic contaminants behave in the physical and biological environment, with the aim to anticipate and quantify chemical exposure of organisms. A comparative approach to exposure assessment has proven particular effective, whereby the practice of comparing the environmental behaviour of different organic contaminants is well established. Chemical fate in the environment is being related to chemical properties in order to address the question: "What chemical property combinations are resulting in highest organism exposure?" Less common is a complementary perspective that seeks to relate chemical exposure to environmental characteristics in order to address the question: "What environments are most vulnerable to organic chemical contamination because they effectively accumulate contaminants?" The overall rationale of the proposed research program is to gain a mechanistic and quantitative understanding of the processes that lead to the accumulation of organic contaminants in the physical environment, in food webs, in different species, and in individuals, including humans. This understanding in turn will allow us to appreciate and anticipate differences in the vulnerability of organisms, food webs, and ultimately ecosystems to the accumulation of organic contaminants.

环境有机化学家试图了解、描述和预测有机污染物在物理和生物环境中的行为，目的是预测和量化有机体的化学暴露。事实证明，暴露评估的比较方法特别有效，因此比较不同有机污染物的环境行为的做法已经确立。为了解决这样一个问题，环境中的化学命运与化学特性有关：“哪些化学特性组合导致有机体暴露最高？”不太常见的是寻求将化学暴露与环境特征联系起来的补充观点，以解决以下问题：“哪些环境最容易受到有机化学污染，因为它们有效地积累了污染物？”拟议研究计划的总体理论基础是从机理和数量上了解导致有机污染物在物理环境、食物网、不同物种和包括人类在内的个人中积累的过程。这种理解反过来将使我们能够理解和预测生物体、食物网以及最终的生态系统对有机污染物积累的脆弱性的差异。