The kinetic of photodecomposition of carbendazim (methyl-2-benzimidazole ca
rbamate) at different pHs (1, 5, 7, 8 and 11) and at two different concentr
ations of dissolved oxygen has been studied. According to the experimental
results, the photodegradation process follows a first-order kinetic and the
degradation rare of carbendazim increases with pH and dissolved oxygen con
centration. (C) 2000 Elsevier Science Ltd. All rights reserved.