Electronic Theses and Dissertation

Penelitian mengenai analis kualitas air BOD5, Nitrat, dan Fosfat di perairan
Alue Naga berdasarkan parameter fisika dan kimia. Penelitian ini telah dilakukan
pada Bulan Januari 2024, yang bertujuan untuk mengetahui kualitas air di perairan
Alue Naga dan Indeks Pencemaran. Penentuan titik lokasi penelitian menggunakan
metode purposive sampling dan analisis sampel BOD5, Nitrat dan fosfat di
Laboratorium Teknik Pengujian Kualitas Lingkungan Universitas Syiah Kuala
menggunakan Spektofotometri. Hasil penelitian menunjukkan bahwa kandungan
tertinggi berada pada 2 stasiun yaitu sebesar 6,78 mg/L dan paling terendah pada
stasiun 3 yaitu sebesar 2,46 mg/L. Kandungan konsentrasi BOD5 menunjukkan bahan
organuk di dalam air tinggi. Kandungan konsentrasi Fosfat tertinggi berada pada
stasiun 3 sebesar 13,16 mg/L dan terendah pada stasiun 1 sebesar 10,43 mg/L.
Kandungan fosfat yang berlebihan disertai dengan adanya nitrogen dapat mendorong
ledakan pertumbuhan fitoplankton di perairan. Sedangkan NO3- konsentrasi tertinggi
berada pada stasiun 1 yaitu sebesar 0,006 mg/L dan paling terendah pada stasiun 2
yaitu sebesar 0,0028 mg/L. Berdasarkan Keputusan Menteri Kelautan dan Perikanan
No. KEP.28/MEN/2004 Tentang Pedoman Umum Budidaya Udang di Tambak.
Kata Kunci: BOD5, Baku mutu, Fosfat, Kualitas Air, dan Nitrat

This study research on air quality analysis of BOD5, Nitrate and Phosphate in Alue Naga waters based on physical and chemical parameters. This research was carried out in January 2024, which aims to determine the air quality in Alue Naga waters and the Pollution Index. Determining the research location using the purposive sampling method and analyzing BOD5, nitrate and phosphate samples at the Environmental Quality Testing Engineering Laboratory at Syiah Kuala University using spectophotometry. The research results showed that the highest content was at 2 stations, namely 6.78 mg/L and the lowest was at station 3, namely 2.46 mg/L. The BOD5 concentration shows that the organic matter in the air is high. The highest phosphate concentration content was at station 3 at 13.16 mg/L and the lowest at station 1 at 10.43 mg/L. Excessive phosphate content accompanied by the presence of nitrogen can encourage explosive growth of phytoplankton in waters. Meanwhile, the highest concentration of NO3- was at station 1, namely 0.006 mg/L and the lowest at station 2, namely 0.0028 mg/L. Based on Decree of the Minister of Maritime Affairs and Fisheries No. KEP.28/MEN/2004 Concerning General Guidelines for Shrimp Cultivation in Ponds. Keywords: Water Quality, BOD5, Nitrate, Phosphate and Quality Standards