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Wahyungsih, Hesti
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Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Economics, Econometrics & Finance Environmental Science Social Sciences

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Batang Toru Rivers Water Quality Analysis of Batangtoru River in South Tapanuli District, North Sumatra Province Rasyid, Fahmi; Nasution, Zulkifli; Wahyungsih, Hesti
Journal of Environmental and Development Studies Vol. 5 No. 01 (2024): Journal of Environmental and Development Studies
Publisher : TALENTA Publisher, Universitas Sumatera Utara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32734/jeds.v5i01.11664

Abstract

Water is a natural resource whose quality needs to be maintained. In order to protect against pollution or achieve good river water quality, it is necessary to make good water management efforts to maintain water functions in accordance with water quality standards. The purpose of this research is to analyze the water quality of the Batangtoru River and the factors that affect the water quality of the Batangtoru River. This research was conducted in the river located in South Tapanuli Regency, North Sumatra Province, Indonesia, for two months in November and December 2020 with test parameters Total Suspended Solid (TSS), Biological parameters in the form of Biological Dissolved Oxygen (BOD), E.Colli, and chemical parameters in the form of Copper (Cu), Zinc (Zn), Cadmium (Cd), Nitrite (NO2-N), and Ammonia (NH3- N). The research results showed that the water quality of the Batangtoru river was: TSS 50 mg/L, BOD 3 mg/L, Cu 0.02 mg/L, Zn 0.05 mg/L, Cd 0.01 mg/L, NO2-N 0.06 mg/L, NH3-N and E. Colli 0 mg/L. These results based on PP 82 of 2001 show that the test parameter values have exceeded water quality standards. And it is included in class II, which means that the quality of the Batangtoru River is experiencing light pollution.  
Bioecological Aspect of Lakepe (Betta raja) in Natural Habitat of Bandar Tinggi Village, Rantau Selatan District, Labuhan Batu Regency Khairul; Machrizal, Rusdi; Wahyungsih, Hesti
Journal of Environmental and Development Studies Vol. 1 No. 01 (2020): Journal of Environmental and Development Studies
Publisher : TALENTA Publisher, Universitas Sumatera Utara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32734/jeds.v1i1.4606

Abstract

Lakepe (Betta raja) is a wild fish species inhabiting water region in Labuhanbatu regency. The fishes are commonly known to inhabit steady and unpolluted streams. The aquatic environmental condition and its ecology will determine the survivability and breeding of Betta raja in its natural habitat.A study of its ecological aspect is needed to obtain any physicochemical characteristics of natural habitat which may act as limiting factor to Betta raja presence. In this study, physicochemical characteristics of water are measured, i.e temperature (T), velocity, pH, dissolved oxygen (DO), biological oxygen demand (BOD), chemical oxygen demand (COD), total dissolved solid (TDS), and total suspended solid (TSS). The environmental condition are measured in the field (in situ) while other parameters, i.e DO, BOD, TDS, and TSS are analyzed in the laboratory. The results showed that the physicochemical characteristics of B. raja habitat are: T (26oC), velocity (0.05 m/s), DO (6.9 mg/L), BOD (3.27 mg/L), COD (8.26 mg/L), TDS (22.1 mg/L), and TSS (5.1 mg/L). The sizes of wild caught B. raja are ranged between 6.3–94.0 cm with body masses of 1.1–4.8 g.
Co-Authors Khairul Rasyid, Fahmi Rusdi Machrizal Zulkifli Nasution