water quality the river is steadily improving, however, its pollution levels still exceed safe levels. One must remember that the river supports approximately 2 million people with industry and transport heavily relient on its waters, therefore, certain levels of pollution are understandable. The ultimate purpose of this report is to analyse the condition of Brisbane River water in 2001. Through testing of river water in different collection locations I statement can be made concerning the overall health of the river. From the results collected recommendations can be made to reduce pollution and erosion levels along the river. Throughout the collection period for different locations were visited where water samples were collected from each. The sites included:1.Pinkenba2.Story Bridge3.Fig Tree Pocket4.Mt Crosby WeirThe water from the locations stated was tested for temperature, dissolved oxygen content, pH, turbidity, suspended and dissolved solids, sulphates, chlorides, nitrates, phosphates, aluminium ions, zinc ions, lead ions, manganese ions, detergents, colour, odour, conductivity, surrounding animal of plant life and land use. 2.0CURRENT STATE OF THE BRISBANE RIVERThe Brisbane River has seen substantial modification during the past 150 years of European occupation. The river has supported waves of exploration, grazing, land clearing, agriculture, settlement and current urbanisation which requires water storage for drinking purposes and flood mitigation; dredging construction materials, shipping channels and flood prevention. Sand extraction through dredging has dominated history along the river, proving extremely important to local construction industries. Between the years 1900 and 1970 an estimated 12 million cubic metres were removed. Extraction of sand reached its peak in the mid 1970s at around 1.45 million cubic metres of sand per year. Annual production was decreased to 1 million cubic metre and later ceased in 1996-7. Extr...
