Simazine microbial degradation

Figure 22.1 Possible microbial degradation pathways of simazine, atrazine, and propazine (Cook et al., 1985).a...

Kearney, PC., D.D. Kaufman, and T.J. Sheets (1965). Microbial degradation of simazine by Aspergillus jumigatus. J. Agric. Food Chem., 13 238-242. 

The metabolism of Monuron in the rat consists of oxidative A -demethyla-tions, ring hydroxylation, and, to a limited extent, degradation of the urea residue to yield an aromatic amine. Using four microbial systems, Simmon et tested 20 pesticides, including Monuron, Simazine 120), and PCNB 224) no positive results were reported for these pesticides with or without S-9 in Salmonella or the other systems. 

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