The effects of organics on the transformation and release of arsenic

Here, two sets of sediments from other As hot spot areas, Yichu (N 23.25, E 120.25) in Taiwan and Van Phuc village (site L; N 105.89, E 20.92 and site H; N 105.89, E 20.91) in Vietnam (Berg et al. 2008, Al Lawati et al., 2012), were chosen for OM characterization. These were then correlated to the amount of As in the aquifers and microbial communities present (Vietnam sediments) or to the rate of As(V) reduction and subsequent release of As(III) in pore waters of microcosm slurry incubations (Taiwan sediments).