Estimation of arsenic contents in rice purchased on Peruvian markets and estimation of dietary intake by Peruvians through rice consumption

Rice (Oryza sativa L) is an important source of essential elements but also can contain high As concentrations, which may be consumed and causes health effects. This work aimed to contribute the lack information quantifying total arsenic (tAs) in 31 domestic rice (white rice, n=19; brown n=7; parboiled n=5) different brands purchased Peruvian markets. The tAs content was conducted by ICP-MS. concentration compared maximum limits prescribed regulatory agencies. Dietary intake (DI), dietary exposure (DE), margin (MOE) were estimated. white, 0.292 ± 0.106 mg/kg, 0.401 0.081 0.229 0.03 respectively. Arsenic white exceeded recommended FAO/WHO (0.20 mg kg-1), European legislation (0.25 no Mercosul (0.3 kg-1). DE showed that, on average, Peruvians consume 5.60 ?g kg-1 BW weekly. MOE value higher than 1 at mean level. Our findings suggest that risk from low for population. However, more studies are needed reduce Peru.