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Journal > Jurnal Teknik Lingkungan > KAJIAN MUTU AIR DENGAN METODE INDEKS PENCEMARAN PADA SUNGAI KRENGSENG, KOTA SEMARANG

 

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Jurnal Teknik Lingkungan
Vol 3, No 4 (2014): Jurnal Teknik Lingkungan
KAJIAN MUTU AIR DENGAN METODE INDEKS PENCEMARAN PADA SUNGAI KRENGSENG, KOTA SEMARANG
Article Info   ABSTRACT
Published date:
03 Nov 2014
 
Krengseng river is flowing through Banyumanik sub-district and Tembalang sub-district, Semarang, with a length of river approximately 7,72 miles. The slope of the river can be written with S=0,0174 and the river catchment area of 738,855 hectares. Both of these districts are growing area that is designated as an area of education and office. Determination of water quality status in  the Krengseng river is necessary in order to find out how much blackened conditions experienced and produce recommendations based on river pollution control. This study aims to analyze the fluctuations of pollutants concentration parameters in Krengseng river influenced by land use based on the parameters of TSS, COD, DO, Phospate, Nitrate and Nitrite; calculate the value of index water pollution at each sampling point in Krengseng river based on parameters, and analyze the pollution load in the river Krengseng. The study was conducted in the dry and rainy season. Pollution index values were analyzed by KepMen LH No. 115 of 2003 about Guidelines for Determination of Water Quality Status by taking 17 points of sampling and make segmentation divided into 10 segments region. The study showed pollution index values is higher in the downstream than upstream; low pollution index value of 1,2 fit into category of minor impurity, while the highest pollution index value of 10 fit the category of being defiled.
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