ABSTRAK
UZI ZEFANYA GULO. Kualitas Air Sungai Belawan Kecamatan Pancur Batu Kabupaten Deli Serdang Provinsi Sumatera Utara. Di bawah bimbingan TERNALA ALEXANDER BARUS dan ANI SURYANTI.
Perairan Sungai Belawan merupakan perairan yang banyak dimanfaatkan untuk berbagai aktivitas masyarakat. Keberadaan aktivitas masyarakat dapat mempengaruhi kualitas air Sungai Belawan Kecamatan Pancur Batu. Penelitian ini bertujuan untuk mengetahui kualitas air berdasarkan parameter fisika dan kimia akibat aktivitas masyarakat di Sungai Belawan Kecamatan Pancur Batu Kabupaten Deli Serdang. Parameter fisika dan kimia air dianalisis dengan metode Storet. Penelitian dilakukan pada bulan Maret sampai April 2015. Metode penelitian yang digunakan adalah Purposive Random Sampling. Stasiun yang digunakan terdiri atas stasiun I (Kontrol), stasiun II (Pengerukan Pasir), dan stasiun III (Rekreasi dan MCK). Nilai parameter fisika dan kimia air antara lain suhu 25,00 − 27,00 oC, kekeruhan (TSS) 22,68 – 28,86 mg/l, TDS 156,6 – 187,2 mg/l, DO 4,80 – 6,00 mg/l, pH 7,20 – 8,10, BOD 1,20 – 2,20 mg/l, nitrat 0,812 – 1,123 mg/l, fosfat 0,112 − 0,153 mg/l, kadar organik substrat 0,372 – 0,705 %. Berdasarkan parameter fisika dan kimia air, stasiun I dan II memenuhi baku mutu air Kelas II (tercemar ringan), sedangkan pada stasiun III memenuhi baku mutu air Kelas II (tidak sedang).
Kata kunci : Kualitas Air, Aktivitas Masyarakat, Sungai Belawan
ABSTRACT
UZI ZEFANYA GULO. The Belawan River Water Quality in District Pancur Batu Deli Serdang regency of North Sumatera. Under academic supervision of TERNALA ALEXANDER BARUS and ANI SURYANTI.
Belawan River waters are widely used for a variety of community activities. The existence of community activities into the waters of the rivers affecting water quality in Belawan River Pancur Batu subdistrict. This study aims to determine the water quality based on physical and chemical parameters as a result of community activities in Belawan River Pancur Belawan Subdistrict of Deli Serdang Regency. Physical and chemical parameters of water were analyzed with method Storet. The study was conducted in March and April 2015. The method used is purposive random sampling. Stations used consisted of station I (Control), station II (dredging sand), and the station III (Recreation and MCK). The value of physical and chemical parameters of water include temperature from 25.00 to 27.00 ° C, turbidity (TSS) from 22.68 to 28.86 mg / l, TDS 156.6 to 187.2 mg / l, DO 4.80 - 6.00 mg / l, pH 7.20 to 8.10, BOD 1.20 to 2.20 mg / l, nitrate 0.812 to 1.123 mg / l, phosphate from 0.112 to 0.153 mg / l, the organic content of the substrate from 0.372 to 0.705 %. Based on the physical and chemical parameters of water, the station I and II meet the water quality standard Class II (lightly polluted), whereas the third station meet Class II water quality standard (not being).
Keywords: Water Quality, Community Activities, Belawan River
