Reduction in uptake by rice and soybean of aromatic arsenicals from diphenylarsinic acid contaminated soil amended with activated charcoal

► Pot experiments using agricultural soil contaminated with aromatic arsenicals (AAs). ► Methylphenylarsinic acid (MPAA) was the most abundant AA in rice and soybean. ► MPAA concentration in rice grains was dramatically reduced via 0.2% AC amendment. ► MPAA concentration in soybean seeds was also reduced via 0.2% AC amendment. ► AC amendment effectively reduced AAs in rice and soybean.