Heavy metal phytotoxicity in long-term contaminated soils: Implications for the development of Australian regulatory guidelines and realistic environmental risk assessment.

重金属污染是一个严重的全球性环境问题。仅在澳大利亚就有超过80，000个可能受到污染的地点，其中许多地点位于城市环境和前矿区。目前的植物毒性测试准则（国家环境保护措施，1999年）是以总金属浓度为基础的，没有考虑到生物利用度和澳大利亚广泛的土壤类型。人们对这些准则的适用性及其在生态风险评估中的保护限度提出了严重关切。该项目旨在制定适用于澳大利亚常见的各种土壤类型的植物毒性准则。

Heavy metal contamination is a serious global environmental problem. There are >80,000 potentially contaminated sites in Australia alone with many of these sites in the urban environment and former mining areas. The current guidelines for phytotoxicity testing (National Environmental Protection Measure 1999) are based on total metal concentrations that do not take into consideration of bioavailability and wide ranging Australian soil types. Serious concerns have been raised on the applicability of these guidelines and their protective limits in ecological risk assessment. This project aims at developing phytotoxicity guidelines applicable to a wide range of soil types common to Australia.