title: Formation of N-Nitrosoterbuthylazine and N-Nitrosoterbutryn in a Model System of Soil Water.
abstract: The s-triazines terbutryn and terbuthylazine are currently used in Italy for weed control. A possible reaction of these compounds in the environment is N-nitrosation. Experiments performed in 10 mM CaCl(2) as a model of soil water indicated that N-nitrosation is favored only at low pH values and that the N-nitroso derivatives are fairly stable. In the presence of soil either parent compounds or N-nitroso derivatives are strongly adsorbed. These results seem to indicate that the possibility of formation of N-nitrosoterbuthylazine and N-nitrosoterbutryn in common agricultural soil is very remote.
authors.affiliation: Dipartimento di Scienze Molecolari Agroalimentari and Dipartimento di Farmacologia, Chemioterapia e Tossicologia Medica, Centro CNR Farmacologia Infrastrutture Cellulari, Università di Milano, I-20133 Milano, Italy, and Istituto di Chimica Agraria e Ambientale, Università Cattolica del Sacro Cuore, Piacenza, Italy.
authors.initials: M
authors.lastname: Trevisan
authors.initials: E
authors.lastname: Graviani
authors.lastname: Del Re AA
authors.initials: A
authors.lastname: Arnoldi
authors.initials: A
authors.lastname: Bassoli
authors.initials: D
authors.lastname: Cova
authors.initials: A
authors.lastname: Rossignoli