Table 3 summarizes the concentrations of
six arsenic species, including inorganic arsenic [As(III) and As(V)],
common organoarsenic compounds found in the environment
(MMA and DMA), and organoarsenic feed additives (ASA and
ROX) in the environmental matrices of the CAFO zone. It should
be noted that the total amount of arsenic species extracted by
the 0.5 M H3PO4 is much less than the total arsenic in the soil
and sediment samples determined by total digestion