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All Journal Ecotrophic, Journal of Environmental Science
M. Widyastuti
Departemen Geografi Lingkungan, Fakultas Geografi, Universitas Gadjah Mada
Environmental Science

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EVALUATION OF WATER QUALITY USING POLLUTION INDEX IN CIMANUK WATERSHED, INDONESIA Andy Wibawa Nurrohman; M. Widyastuti; Slamet Suprayogi
ECOTROPHIC : Jurnal Ilmu Lingkungan (Journal of Environmental Science) Vol 13 No 1 (2019)
Publisher : Master Program of Environmental Science, Postgraduate Program of Udayana University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (612.395 KB) | DOI: 10.24843/EJES.2019.v13.i01.p08

Abstract

Land use is one of the macro parameters that affects water quality in a watershed. The Cimanuk watershed which is dominated by agricultural land use and settlements has encountered a decline in water quality. There are eight parameters including pH, TDS, TSS, Nitrate, Phosphate, Sulphate, BOD, and COD analyzed to evaluate water quality utilizing the Pollution Index (IP) method. This research has provided a clear understanding of the status of water quality in the Cimanuk watershed based on six monitoring points carried out at the start of the 2018 rainy season. Overall, the IP values obtained ranged from 2.05 to 5.96 with the lightly polluted category at points A, B, C, D, and E, while for point F it was in the moderately polluted category. The key parameters that have the most influence on water quality pollution are Nitrate, Phosphate, Sulphate from fertilization activities in agricultural land, while runoff from settlements contribute to increasing parameters of BOD and COD. These results can be beneficial for sustainable management of water and land resources in the Cimanuk watershed.
Co-Authors Andy Wibawa Nurrohman Slamet Suprayogi