Browsing by Author "Putri, Auwilla"

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    Analisis Status Kualitas Air Sungai Batang Arau, Propinsi Sumatera Barat Berdasarkan Indeks Pencemaran Dan NSF-WQI
    (wahyu sari yeni, 2018-09-05) Putri, Auwilla; Osronita, Osronita; Dewata, Indang
    This study was conducted to determine water quality status and water quality index of Batang Arau River in Padang City, West Sumatera Province, Indonesia by using Pollution Index (PI) and NSF-WQI method. Water samples were collected from six stations along the main river and thirteen selected parameters were analyzed, namely: Temperature, Turbidity, total suspended solid, total dissolved solids, pH, dissolved oxygen, biological oxygen demand, ammonia, nitrates, nitrites, Total Phosphates, Fecal coliform and chemical oxygen demand. Based on the calculation, without including fecal coliform as a parameter, it is obtained that the water quality status in the upstream part, station 1 and 2, have a good water quality criteria (PI value 0.58 and 0.61). Meanwhile, the middle stream part, station 3 and 4, belong to a moderately polluted criteria (PI 5.97 and 5.65), and the downstream part, station 5 and 6, go into a polluted criteria (PI 5.97 and 5.65). The Water Quality Index shows a good category on stations 1, 2 and 3 (NSF-WQI values in the range 71.89-72.44), whereas at stations 4, 5 and 6 fall into a medium category (NSF-WQI value at 63.87-68.48). When fecal coliform is included, there is a decline of water quality status and index of Batang Arau River. The water quality status indicates a moderately polluted at station 1 (PI : 2.07) and polluted on station 2, 3, 4, 5 (PI value in range 5.63-6.06). The Water Quality Index shows medium category in all monitoring stations (NSF-WQI score in the range 54.65-63.32). It is expected that the research results can be used to improve the quality of Batang Arau River.
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    Penggunaan Metode Indeks Pencemaran Dan Nsf-Wqi Untuk Menentukan Kualitas Air Sungai Batang Ampalu
    (wahyu sari yeni, 2019-01-09) Putri, Auwilla; Dewata, Indang
    The study was conducted on the Ampalu River to determine river water quality using pollution index (PI) and NSF-WQI methods. The river is one of the small rivers in the city of Padang and is used as drinking water sources, and for the purpose of fisheries, agriculture and water recreation so that the quality needs to be analyzed. The data used is monitoring data of Environmental Protection Agency of Padang Laboratory in 2017 at 2 stations by analyzing 13 parameters, namely temperature, turbidity, TSS, TDS, pH, DO, BOD, NH3-N, NO2-N, NO3-N, total phosphate, fecal coliform and COD. The analysis results showed that there is no influence of the season for the status of water quality of Ampalu River in 2017. The upstream part of the river is in lightly polluted condition with a PI value of 2.07 while the downstream is in a moderately polluted condition with an IP value of 5.63. The analysis results of water quality index show that in the dry season the quality of river water is in the medium category with NSF-WQI values at the upstream and 50.21 at the downstream. In the rainy season, the water quality index of the upper reaches of the Ampalu River is in the medium category with NSF-WQI values of 54.31 and in the downstream in bad conditions with NSF-WQI values of 48.94. It is hoped that the results of this research can be used to improve the quality of Ampalu River so that the river can be utilized in accordance with its purposes.