Ecophysiology, Biochemistry and Toxicology Group (U7), University of Antwerp, Antwerp, Belgium.
Environ Pollut. 2009 Nov;157(11):3098-105. doi: 10.1016/j.envpol.2009.05.017. Epub 2009 Jun 12.
The present study investigated the contribution of environmental factors to the accumulation of As, Cd, Cu, Pb and Zn in earthworms, beetles and woodlice, and framed within an exposure assessment of the European hedgehog. Soil and invertebrate samples were collected in three distinct habitat types. Results showed habitat-specific differences in soil and invertebrate metal concentrations and bioaccumulation factors when normalized to soil metal concentration. Further multiple regression analysis showed residual variability (habitat differences) in bioaccumulation that could not be fully explained by differences in soil metal contamination, pH or organic carbon (OC). Therefore, the study demonstrated that in bioaccumulation studies involving terrestrial invertebrates or in risk assessment of metals, it is not sufficient to differentiate habitat types on general soil characteristics such as pH and/or OC alone. Furthermore, simple generic soil risk assessments for Cd and Cu showed that risk characterization was more accurate when performed in a habitat-specific way.
本研究调查了环境因素对蚯蚓、甲虫和鼠妇体内砷、镉、铜、铅和锌积累的贡献，并在评估欧洲刺猬的暴露情况时进行了研究。在三种不同的生境类型中采集了土壤和无脊椎动物样本。结果表明，当根据土壤金属浓度进行标准化时，土壤和无脊椎动物金属浓度以及生物累积因子存在生境特异性差异。进一步的多元回归分析表明，生物累积方面存在无法用土壤金属污染、pH 值或有机碳 (OC) 差异完全解释的剩余变异性（生境差异）。因此，该研究表明，在涉及陆地无脊椎动物的生物累积研究或金属风险评估中，仅根据 pH 值和/或 OC 等一般土壤特性对生境类型进行区分是不够的。此外，对 Cd 和 Cu 进行的简单通用土壤风险评估表明，当以特定生境的方式进行时，风险特征描述更加准确。
