Environ. Sci. Technol. 2002, 36, 702-708
Benzothiazolamines as Tire-Derived Molecular Markers: Sorptive Behavior in Street Runoff and Application to Source Apportioning H I D E T O S H I K U M A T A , * ,† J U N Y A Y A M A D A , ‡ KOUJI MASUDA,‡ HIDESHIGE TAKADA,‡ YUKIO SATO,† TERUAKI SAKURAI,† AND KITAO FUJIWARA† Tokyo University of Pharmacy and Life Science, Hachioji, Tokyo 192-0392, Japan, and Tokyo University of Agriculture and Technology, Fuchu, Tokyo 183-8509, Japan
Wash-off and sorptive behaviors of two benzothiazolamines (BTs) [i.e., 2-(4-morpholinyl)benzothiazole (24MoBT) and N-cyclohexyl-2-benzothiazolamine (NCBA)] have been investigated as possible molecular markers for tire debris and/ or road dust transported in highway runoff water. Sum of dissolved and particulate 24MoBT and NCBA concentrations in runoff water ranged from 15 to 417ng/L and from 22 to 508ng/L, respectively. Proportions of NCBA in particulate (>0.7µm) phase (
