“…It evidences the complexity of the Hg accumulation process in rice seeds and the influence of several environmental factors. Among the variables that affect such mechanisms there is the rice cultivar (Horvat et al, 2003;Li et al, 2013) and the contribution from atmospheric deposition (Horvat et al, 2003;Meng et al, 2010Meng et al, , 2012Yin et al, 2013a). The latter one principally influenced the top soil (0-10 cm) of rice paddies (Li et al, 2008b), which is evidenced by one order of magnitude decrease of Hg concentration with in 1km distance from the artisanal Hg mining sites (Meng et al, 2011).…”