Extreme selenium and tellurium contamination in soils--an eighty year-old industrial legacy surrounding a Ni refinery in the Swansea Valley.

Elevated levels of selenium (maximum 200 mg/kg) and tellurium (maximum 11 mg/kg) are reported in topsoils (<5 cm) from around a long-established nickel refinery at Clydach in the Lower Swansea Valley, UK. Se and Te are correlated with each other and when these data are plotted as contour diagrams they show a concentric pattern centred on the refinery site… CONTINUE READING