A few weeks ago I stumbled upon a similar report on soil contamination and health risk of toxic trace elements in soils surrounding rare earth tailings in China. It says that,

adults exhibited elevated health risks via oral ingestion [which] demonstrated that the median hazard index (HI) and carcinogenic risk (CR) values in five provinces surpassed safety thresholds … Sensitivity analyses identified daily soil intake and exposure duration were positively linked to health risks, with As, Ni, Cd, Cr, and Mn concentrations contributing substantially to cumulative risks.

I learned earlier that already ten years ago, in 2014, one fifth of China’s soil were found to be contaminated, according to official Chinese data.