The rich soil holds thousands of tons of carbon, sequestered over centuries by indigenous practices, a new study suggests. The Amazon river basin is known for its immense and lush tropical forests, so one might assume that the Amazon’s land is equally rich. In fact, the soils underlying the fores
The experiment was carried out with sediment samples from a lead and silver ore processing area in the municipality of Apiaí, in the interior of São Paulo, which were contaminated with arsenic (As), present in the soil in the form of anion (negative