Dissolved organic carbon quality influences metal toxicity in freshwaters

该项目旨在描述在澳大利亚淡水中发现的溶解有机碳（DOC）的类型，并研究这些类型如何影响金属对生物体的毒性。DOC具有降低天然水体中金属对生物的毒性的能力，其降低的强度与DOC的类型有关。关于在澳大利亚水域中常见的DOC类型的信息是缺乏的，它们对澳大利亚生物群的金属毒性影响是未知的。本项目旨在描述澳大利亚不同生态区DOC的特征，并研究不同DOC对金属毒性的影响。预期的结果是更好的预测毒性模型和更好的评估与金属污染相关的风险。

This project aims to characterise the types of dissolved organic carbon (DOC) found within Australian freshwaters and investigate how these influence metal toxicity to organisms. DOC has the ability to decrease the toxicity of metals to organisms in natural waters, and the intensity of the decrease is related to the type of DOC. Information regarding the types of DOC commonly found within Australian waters is lacking, and their impact on metal toxicity to Australian biota is unknown. This project aims to characterise DOC from different Australian ecoregions and investigate the influence of different DOCs on metal toxicity. The expected outcomes are better predictive toxicity models and better assessment of risks associated with metal contamination.