Water Quality Index in The Green Corridor of The Jawi River, Pontianak
Keywords:
green corridor, Sungai Jawi, Water Pollutant Index (WPI)Abstract
Abstract: Water Pollutant Index (WPI) is the next indicator to be examined in this study for determining the Environmental Quality Index (EQI) of the green corridor (N. Listyaningrum, 2021). Water pollution is one of the components that must be measured and analyzed to determine whether the water elements within the Sungai Jawi green corridor are polluted or not. According to the Ministry of Environment and Forestry (2019), the Water Pollutant Index (WPI) or Water Quality Index (WQI) can be determined through measured parameters, including Total Suspended Solids (TSS), Dissolved Oxygen (DO), Biological Oxygen Demand (BOD), Chemical Oxygen Demand (COD), Total Phosphate, Fecal Coliform, and Total Coliform. The calculation of the Water Quality Index uses the pollution index method, which applies the concept that the higher the pollution index value, the poorer the water quality. This assessment refers to the Class II water quality standards based on Government Regulation Number 82 of 2001. The research methods employed include: 1) Identification, by conducting measurements according to the established parameters; 2) Analysis, by performing calculations using formulas provided by the Ministry of Environment and Forestry; 3) Hypothesis formulation, to obtain results and conclusions regarding the Water Quality Index values of the Sungai Jawi green corridor; and 4) Preparation of the WPI map for the Sungai Jawi green corridor at Gertak sections 1 and 2, based on the results of the formulated hypothesis. The results indicate that the Water Pollutant Index (WPI) or Water Pollution Index of the Sungai Jawi River at Gertak sections 1 and 2 falls under the lightly polluted classification. The WPI (Pij) values obtained were 1.868 at point 1, 1.833 at point 2, and 1.742 at point 3. The lightly polluted classification indicates that one or more measured parameters exceed the established water quality standards, specifically the Class II water quality standard.
References
Anonimous. 2003. Penentuan Status Mutu Air. Keputusan Menteri Lingkungan Hidup No. 115 Tahun 2003.
Anonimous .2008. Pedoman Penyediaan dan Pemanfaatan Ruang Terbuka Hijau di Kawasan Perkotaan. Peraturan Menteri Pekerjaan Umum No.5 Tahun 2008.
Anonimus 2019. Indeks Kualitas Lingkungan Hidup 2019. Kementerian Lingkungan Hidup dan Kehutanan. Indonesia. ISBN : 978-602-8358-94-1.
Dewi, R., Retno, P. L., Ernawita, N., Ridwan, F. (2018). Pengembangan indeks kualitas air sebagai alternatif penilaian kualitas air sungai. Jurnal Ecolab.
Eka, W., Yunus, P. (2021). Pollutant Index method in determining the water quality status of the Cimahi River in West Bandung Regency. IOP Conf. Series: Earth and Environmental Science, 1(999), 1-11.
Listyaningrum, N., Dewanti, T., Wahyudi, T. P., Josiana, G. R., Latifah., Ariefin, R. F., Slamet, S. (2022). Study of the environmental quality index in an urban campus area. IOP Conference Series : Earth and Environmental Science. doi:10.1088/1755-1315/1039/1/012065, 4(1039), 1-13.
Liu, Y., Zhang, Z., Wang, W. (2021). Impact of agricultural and industrial pollution on river water quality in urban areas: a case study of the yellow river basin. Journal of Environmental Management, (269), 110753.
