The effect of dissolved organic matter on the toxicity and bioavailability of metals in tropical freshwater ecosystems

热带淡水生态系统中溶解有机物对金属毒性和生物利用度的影响

• 批准号: LP0562507
• 负责人: A/Prof Barry Noller
• 金额: $ 6.44万
• 依托单位: The University of Queensland
• 依托单位国家: 澳大利亚
• 项目类别: Linkage Projects
• 财政年份: 2005
• 资助国家: 澳大利亚
• 起止时间: 2005-12-31 至 2011-07-31
• 项目状态: 已结题
• 来源: https://dataportal.arc.gov.au/RGS/Web/Grants/LP0562507
• 关键词: effect; dissolved; organic; matter; toxicity

Mine waste materials in tropical Australia, including historical, current and future operations, represent one of the threats to the quality and biodiversity of tropical freshwater ecosystems. Dissolved organic carbon (DOC) is thought to influence metal toxicity. In order to adequately understand the risks of priority metals and metalloids from mining and other activities (eg. urban development) to tropical freshwater ecosystems, it is essential that the role of DOC is quantified. The outcomes of this project will provide improved metal risk assessment methodologies; quantitative understanding of the relationship between DOC and the bioavailability and toxicity of key metals such arsenic, aluminium, cadmium, copper, uranium and zinc.

澳大利亚热带地区的矿山废料，包括过去、现在和将来的作业，是对热带淡水生态系统质量和生物多样性的威胁之一。溶解有机碳（DOC）被认为影响金属毒性。为了充分了解采矿和其他活动（如采矿）中的优先金属和准金属的风险，城市发展）对热带淡水生态系统的影响，因此，量化DOC的作用至关重要。该项目的成果将提供改进的金属风险评估方法;定量了解DOC与砷、铝、镉、铜、铀和锌等关键金属的生物利用度和毒性之间的关系。