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  • 1 The University of Tokyo Graduate School of Science Bunkyo-ku Tokyo 113-0033 Japan
  • | 2 The University of Tokyo Graduate School of Arts and Sciences Meguro-ku Tokyo 153-8902 Japan
  • | 3 National Institute for Environmental Studies Tsukuba-city, Ibaraki 305-8506 Japan
  • | 4 National Institute of Polar Research Itabashi-ku Tokyo 173-8515 Japan
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Abstract  

Airborne particulate matter was collected at the intersection of Industrial Road in Kawasaki-city, Kanagawa, Japan using a 12-stage low-pressure impactor. High concentrations of airborne particulate matter have been observed in this area. The collected samples were analyzed for 34 elements by instrumental neutron activation analysis (INAA), and data on the elemental concentrations were obtained. High concentrations of fine particles of As, Br, Sb, V, and Zn were observed. It was further observed that these fine particles were originated predominantly from the wear of tires and brakes, and not from automobile exhaust emissions.