This study draws attention to the fact that natural processes can mobilize thallium (Tl), a highly toxic metal, which may enter the food chain with severe health impacts on the local human population. A rural area having independent Tl mineralization in s This study draws attention to the fact that natural processes can mobilize thallium (Tl), a highly toxic metal, which may enter the food chain with severe health impacts on the local human population. A rural area having independent Tl mineralization in s