Abstract
Samples of urban air around Kobe in Japan, were analysed for polychlorinated dibenzop-dioxins (PCDDs) and dibenzofurans (PCDFs), PCBs, and other chlorinated compounds by using high resolution GC-MS/selected ion monitoring (HRGC-MS/SIM). The SIM was carried out in magnetic field switching technique which enable us to monitor simultaneously forty ions in this study. The average concentrations of PCBs was 2.8 ng/m 3, and PCDDs and PCDFs were 8.6 pg/m 3 and 8.8 pg/m 3, respectively.
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