Kualitas Air Sungai Belawan Kecamatan Pancur Batu Kabupaten Deli Serdang Provinsi Sumatera Utara

Abstract

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).