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Assessment of Aquatic Physico-chemistry and Eutrophication Rate at the Lake Tondano

Journal of Environmental Science and Engineering(B) 2013年第10期2卷 565-573页

作者： tiene magda bettie turangan Amin Setyo Leksono Soemamo Diana Arfiati Department of Environmental Science and Technology University of Brawij'aya Malang 65145 East Java Indonesia Department of Chemistry Faculty of Mathematics an Natural Sciences Manado State University Tondano 96518 North SulawesiIndonesia Department of Biology Faculty of Mathematics and Natural Sciences University of Brawijaya Malang 65145 East JavaIndonesia Faculty of Agricuhure University of Brawijaya Malang 65145 East Java Indonesia Faculty of Fisheries and Marine Sciences University of Brawijaya Malang 65145 East Java Indonesia

The purpose of this research was conducted to determine the physical factors, namely water temperature, total dissolved solids, total suspended solids, electrical conductivity and chemical water including pH, phosphate, BOD （biochemical oxygen demand）, COD （chemical oxygen demand）, DO （dissolved oxygen）. The factors of physics and chemistry can affect the rate of eutrophication. The data obtained through laboratory analysis of physical and chemical parameters of water samples. Water samples were taken from 8 observation stations. Highly variable results were obtained in each observation station. Data physical parameters were tested with statistical multiple linear regression to determine the effect on water quality, the results show that the physical properties do not affect the rate of eutrophication in Lake Tondano. That is, the amount of total dissolved solids content and total suspended solids, will not affect the rate of eutrophication in Lake Tondano. The results of multiple linear regression satistik test against chemical parameter data that is phosphate, BOD, COD and DO showed as a significant effect on the rate of eutrophication in lakes. The higher phosphate levels will be higher as the increase of the rate of eutrophication in Lake Tondano.

关键词： Physics of water water chemistry eutrophication Lake Tondano.

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