Urinary arsenic concentrations and speciation in residents living in an area with naturally contaminated soils

Arsenic levels reported in this original study in France were between 2 and 4 times lower than in other studies dealing with iAs + MMA + DMA levels associated with soil arsenic exposure. Arsenic levels were similar to those observed in unexposed individuals in European countries, although 10% were above the French guideline values for the general population.