DISTRIBUTION OF ORGANOCHLORINES, POLYCYCLIC AROMATIC-HYDROCARBONS, PHOSPHORUS AND CS-137 IN SEDIMENT PROFILES FROM ELLEN-BROOK IN WESTERN-AUSTRALIA

Profile distributions are compared of organochlorines (OCs), unsubstituted polycyclic aromatic hydrocarbons (PAHs), phosphorus and Cs-137 and Pb-210 in sediment cores from Ellen Brook, a tributary of the Swan River in Western Australia. Distributions and concentrations of OCs, phosphorus and Cs-137 clearly reflect changes in their inputs to the catchment over time, whereas the distribution and concentration of PAHs in sediments is more difficult to relate to catchment inputs. A comparison of areal concentrations of Cs-137, OCS and PAHs-calculated from concentrations in sediment profiles from Ellen Brook-suggests that Cs-137 and OCs trace similar soil materials, whereas PAHs behave differently.