“…While WHAM7 does not model these elements, literature indicated that they too are likely sequestered by organic molecules (Bowell, 1994;Kautenburger et al, 2017;Larsson et al, 2015;Lu et al, 1998;Maji et al, 2008;Wang et al, 2015;Wichard et al, 2009;Xu et al, 1991). Arsenic and Mo typically prefer oxyhydroxides, such as goethite and hematite, however, in competitive environments with humic substances, they preferentially sorb to organics (Bowell, 1994;Wichard et al, 2009;Xu et al, 1991).…”