Effects of chemical treatments on fresh-cut papaya.

Four treatments (control, 0.1% cinnamaldehyde, 0.75% calcium chloride and combination of 0.

Arsenic and chromium in Brazilian agricultural supplies.

Arsenic (As) and chromium (Cr) contents were measured in agricultural supplies used at different farms in Sao Paulo State, Brazil. The highest mass fractions of As were found in thermophosphates, reaching levels of 4 mg/kg. The highest mass fractions of Cr (21 g/kg) were found in calcium magnesium silicate, while the thermophosphates also presented high values reaching approximately 1 g/kg.