PO IN THE ENVIRONMENTAL SAMPLES

Various environmental samples (seawater, TSS, sediment, rainwater and fly ash) from eight different stations near Kapar coastal area were analyzed. The 210Po activity concentrations in liquid samples (seawater and rainwater) varied between 0.34 ± 0.03 mBq L-1 to 22.44 ± 0.53 mBq L-1. Whereas the concentrations in particulate samples (TSS, sediment and fly ash) varied between 43.79 ± 2.31 Bqkg-1 to 364.48 ± 5.43 Bqkg-1. Results also showed the radioactivity in Kapar coastal is higher than most of Malaysian coast, reaching a factor of seven. This condition is mainly due to the operation of a coal-fired power plant nearby. This study also clarify the variability of 210Po in environment was strongly influenced from rainfall events especially during wet seasons. ABSTRAK Pelbagai sampel persekitaran (air laut, TSS, sedimen, air hujan dan abu terampai) daripada lapan stesen yang berbeza berdekatan persisir pantai Kapar telah dianalisis. Kepekatan aktiviti 210Po di dalam sampel cecair (air laut dan air hujan) adalah berubah-ubah antara 0.34 ± 0.03 mBq L-1 hingga 22.44 ± 0.53 mBq L-1. Manakala kepekatannya di dalam sampel partikel (TSS, sedimen dan abu terampai) berubah-ubah antara 43.79 ± 2.31 Bqkg-1 hingga 364.48 ± 5.43 Bqkg-1. Keputusa