ANALISIS KUALITAS AIR DAN STATUS MUTU AIR SUNGAI BANJARKEMANTREN KABUPATEN SIDOARJO MENGGUNAKAN METODE INDEKS PENCEMAR

Aktivitas manusia dan industri menjadi salah satu sumber pencemaran lingkungan perairan, terutama sungai. Tingkat pencemaran air bisa diketahui dengan perhitungan Indeks
Pencemar (IP) yang mengacu pada Keputusan Menteri Lingkungan Hidup No. 115 Tahun 2003 tentang penentuan status mutu air. Sungai Banjarkemantren merupakan salah satu sungai di
Kecamatan Buduran yang letaknya berdekatan dengan permukiman warga dan kawasan industri. Tujuan penelitian ini adalah mengetahui kategori tingkat pencemaran sungai terhadap
parameter TSS, TDS, pH, dan Pb serta perhitungan IP dan status mutu Sungai Banjarkemantren. Penelitian ini dilakukan dengan pengambilan sampling air sungai Banjarkemantren Kecamatan Buduran dan selanjutnya dilakukan analisis kualitas air sungai terhadap parameter TSS, TDS, pH dan Pb menggunakan perhitungan IP untuk mengetahui kategori tingkat pencemaran air atau status mutu air Sungai Banjarkemantren Kecamatan Buduran Kabupaten Sidoarjo, sehingga dapat diketahui status mutu sungai Banjarkemantren berdasarkan Peraturan Pemerintah Nomor 22 Tahun 2021 tentang Penyelenggaraan Perlindungan dan Pengelolaan Lingkungan Hidup. Pengambilan sampel air dilakukan di Kawasan industri dan Kawasan permukiman. Masing-masing kawasan terdapat 5 titik pengambilan sampel. Berdasarkan hasil penelitian pada area industri dan area permukiman di sekitar sungai Banjarkemantren ditunjukkan bahwa sungai Banjarkemantren memenuhi baku mutu terhadap parameter TSS, TDS pH, dan Pb dan masuk kategori air sungai kelas III.
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Human and industrial activities are one of the sources of pollution of the aquatic environment, especially rivers. The level of water pollution can be determined by calculating the Pollutant Index (IP) which refers to the Decree of the Minister of the Environment No. 115 of 2003 concerning the
determination of the status of water quality. Banjarkemantren River is one of the rivers in Buduran District which is located close to residential areas and industrial areas. The purpose of this study was to determine
the category of river pollution levels on the parameters of TSS, TDS, pH, and Pb as well as the calculation of IP and quality status of the Banjarkemantren River. This research was conducted by sampling the water of the Banjarkemantren river, Buduran District and then analyzing the quality of river water on the parameters of TSS, TDS, pH and Pb using IP calculations to determine the category of water pollution
level or water quality status of the Banjarkemantren River, Buduran District, Sidoarjo Regency, so that it could be known the quality status of the Banjarkemantren river based on Government Regulation Number 22 of 2021 concerning the Implementation of Environmental Protection and Management. Water sampling is carried out in industrial areas and residential areas. Each area had 5 sampling points. Based on the results of research on industrial areas and residential areas around the Banjarkemantren river, it was shown that the quality standards of the Banjarkemantren river for TSS, TDS, pH, and Pb parameters and was categorized as class III for river water.