title: Activities of 210Po and 210Pb in the water column at Kuala Selangor, Malaysia.
abstract: Natural radionuclides, such as (210)Po and (210)Pb were measured in the water samples collected from six stations at Kuala Selangor, Malaysia. Results for (210)Po and (210)Pb in dissolved and particulate phases have showed the difference in distribution and chemical behavior. The fluctuation activities of (210)Po and (210)Pb depend on wave action, geology and degree of fresh water input occurring at study areas and probably due to different sampling dates. The distribution coefficient, K(d), values of (210)Po and (210)Pb ranged from 2.0 x 10(3)lg(-1) to 265.15 x 10(5)lg(-1), and from 3.0 x 10(3)lg(-1) to 558.16 x 10(5)lg(-1), respectively. High K(d) values of (210)Po and (210)Pb indicated that a strong adsorption of (210)Po and (210)Pb onto suspended particles, and the sinking of both nuclides on the seabed at study locations were controlled by the characteristics of suspended particles.
authors.affiliation: Marine Science Program, School of Environmental Science and Natural Sources, Faculty of Science and Technology, National University of Malaysia (UKM), 43600 Bangi, Selangor, Malaysia.
authors.forename: Tee Lee
authors.initials: TL
authors.lastname: Theng
authors.forename: Che Abd Rahim
authors.initials: CA
authors.lastname: Mohamed
mesh_terms: D004784:Environmental Monitoring; D007856:Lead Radioisotopes / Q000032:analysis*; D008296:Malaysia; D011059:Polonium / Q000032:analysis*; D012995:Solubility; D013048:Specimen Handling; D014872:Water Movements; D014881:Water Supply
chemical_list: D007856:Lead Radioisotopes; D011059:Polonium