Thallium mobility in the critical zone - Sorption of thallium on select clay minerals

铊是一种新兴的污染物，对哺乳动物的毒性高于其他重金属，如铅，镉或汞。土壤代表了关键的环境舱铊转移路径从点源到相邻的生物圈和水圈，分别。因此，在一般的临界区，特别是在土壤中的Tl行为的定量的理解是非常重要的社会意义。粘土矿物是铊在土壤中富集或迁移的关键相，但对铊在粘土矿物上的吸附特性研究还不够深入。该项目将生成Tl的吸附等温线，并在选择和代表性粘土矿物上潜在地表现出类似的金属。该数据将显著改善临界区中的Tl行为和Tl转移的知识。这将在一个案例研究中评估的土壤冶炼厂衍生的铊输入的影响。

Thallium is an emerging contaminant with higher toxicity to mammals than other heavy metals such as Pb, Cd or Hg. Soils represent the crucial environmental compartment for Tl transfer paths from point sources to the adjacent bio- and hydrosphere, respectively. Thus, a quantitative understanding of the Tl behavior in the critical zone in general and in soil in particular is of great social importance. The sorption properties of Tl on clay minerals, which are key phases for the enrichment or migration of Tl in soils, are not properly investigated. This project will generate sorption isotherms of Tl and potentially similarly behaving metals on select and representative clay minerals. The data will significantly improve the knowledge of Tl behavior and Tl transfer in the critical zone. This will be evaluated in a case study on a soil affected by smelter-derived Tl input.