scholarly journals ANALISIS STATUS MUTU AIR SUNGAI SIANGKER BERDASARKAN INDEKS KUALITAS AIR Water Quality Status Analysis of Siangker River based on Water Quality Index

2020 ◽  
Vol 8 (4) ◽  
pp. 275-282
Author(s):  
Hayu Asmawati ◽  
Haeruddin Haeruddin ◽  
Bambang Sulardiono

Sungai Siangker merupakan sungai yang terletak di Semarang Barat. Terdapat berbagai aktivitas di sepanjang aliran sungai tersebut, diantaranya pemukiman penduduk, perkotaan, dan pertambakan dimana buangan limbah masuk ke dalam badan sungai. Hal tersebut menyebabkan terjadinya penurunan kualitas perairan. Tujuan penelitian ini adalah untuk mengetahui konsentrasi nitrat, fosfat, BOD, dan COD, mengetahui status mutu air berdasarkan nilai indeks kualitas air (IKA), dan rasio BOD/COD Sungai Siangker. Penelitian  dilaksanakan bulan April 2019. Pegambilan sampel terdiri dari 3 stasiun yang masing-masing dilakukan 3 kali pengulangan. Stasiun I berada di kawasan pemukiman namun masih jauh dari pipa pembuangan limbah domestik, stasiun II berada setelah kawasan pemukiman dan di kawasan pertambakan, serta stasiun III berada di hilir Sungai Siangker. Berdasarkan hasil penelitian, konsentrasi rata-rata nitrat di Sungai Siangker sebesar 0,52 mg/l, konsentrasi rata-rata fosfat di Sungai Siangker sebesar 0,054 mg/l, konsentrasi rata-rata BOD di Sungai Siangker sebesar 28 mg/l, dan konsentrasi rata-rata COD di Sungai Siangker sebesar 113 mg/l. Konsentrasi  nitrat, fosfat, BOD, dan COD di beberapa titik telah melebihi baku mutu, baik baku mutu PP No. 82 Tahun 2001 kelas III untuk perikanan maupun baku mutu air laut untuk biota laut KepMenLH No. 51 Tahun 2004. Berdasarkan nilai IKA, kualitas air Sungai Siangker (IKA: 1,48 - 29,72) termasuk kategori tercemar ringan - tercemar sangat berat (kotor). Hasil rasio BOD/COD pada stasiun I (0,23), stasiun II (0,30), dan stasiun III (0,38) menunjukan bahwa bahan-bahan pencemar yang berada pada stasiun I, II, dan III bersifat biodegradable. ABSTRACT Siangker River is a river that located in West Semarang. There are various activities along the river flow, including the existence of settlements, restaurants, and aquaculture where waste effluents enter the river. It causes a decrease in water quality. The purpose of this study was to determine the concentration of nitrate, phosphate, BOD, and COD, also to determine water quality status based on Water Quality Index (WQI). The study was conducted on April, 2019. Samples of water from Siangker were taken from the upstream, midstream, and downstream. The sampling point was consisted of 3 points with 3 repetitions. Station I is located in a residential area but still far away from the domestic sewage pipe, station II is after the residential area and near a fishpond area, and station III is downstream of Siangker River. Based on the result, the average concentration of nitrate was 0.52 mg/l, the average concentration of phospate was 0.054 mg/l, the average concentration of BOD was 28 mg/l, and the average concentration of COD was 113 mg/l. The concentration of nitrate, phosphate, BOD, COD, and DO at some point has exceeded the quality, both quality standard PP No. 82 of 2001 class III and KepMenLH No. 51 of 2004 seawater quality standard for marine biota. Based on IKA, water quality of Siangker River (WQI: 1.48 – 29.72) included in the slightly polluted category - the very heavily polluted category. The BOD/COD ratio at station I (0.23), station II (0.30), and station III (0.38) shows that pollutants at stations I, II, and III are biodegradable. 

2021 ◽  
Vol 20 (1) ◽  
pp. 22-29
Author(s):  
Novianti Novianti ◽  
Badrus Zaman ◽  
Anik Sarminingsih

Sungai Cidurian adalah salah satu sungai yang mengalir di Kabupaten Tangerang dan Kabupaten Serang yang melintasi 17 (tujuh belas) kecamatan dan 2 (dua) kabupaten dengan panjang 67,5 Km. Kajian dilakukan untuk menganalisis status kualitas air Sungai Cidurian pada segmen hilir agar dapat mengetahui kondisi dan tingkat status mutu airnya sehingga dapat mengambil kebijakan pengelolaan dan pengendalian pencemaran dengan tepat. Penelitian dilakukan pada saat musim kemarau dan musim hujan. Nilai status mutu air dianalisis dengan Metode Indeks Pencemaran (IP) yang perhitungannya mengacu pada KepMen LH No. 115 Tahun 2003 tentang Pedoman Penentuan Status Mutu Air.  Hasilnya menunjukan pada 4 (empat) lokasi titik sampling memperlihatkan rata-rata nilai Indeks Pencemaran (IP) pada hilir sungai dalam kondisi baik dan cemar ringan berdasarkan Baku Mutu Kelas II PP 22/2021, untuk nilai Indeks Pencemaran (IP) terendah sebesar 0,66 dan tertinggi sebesar 1,56. ABSTRACTThe Cidurian River is one of the rivers that flows in Tangerang Regency and Serang Regency which crosses 17 (seventeen) sub-districts and 2 (two) districts with a length of 67.5 Km. The study was carried out to analyze the water quality status of the Cidurian River in the downstream segment in order to know the condition and level of the water quality status so that it could take appropriate pollution management and control policies. The research was conducted during the dry season and the rainy season. The value of water quality status was analyzed by using the Pollution Index Method (IP), the calculation refers to the Minister of Environment Decree No. 115 of 2003 concerning Guidelines for Determining Water Quality Status. The results show that at 4 (four) sampling point locations, the average Pollution Index (IP) value in the downstream river is in good condition and lightly polluted based on the Class II PP 22/2021 Quality Standard, for the lowest Pollution Index (IP) value of 0, 66 and the highest of 1.56.


2010 ◽  
Vol 3 (1) ◽  
pp. 151 ◽  
Author(s):  
S. Islam ◽  
T. Rasul ◽  
J. Bin Alam ◽  
M. A. Haque

The Titas River, a trans-boundary river of Bangladesh flows almost the entire Brahmanbaria district, consumes a huge amount of sewage, agricultural discharges and runoff, waste produced from human excreta, discharges of two oil mills and contaminants from other minor sources. A study is conducted to find the water quality status of the river during the period from July 2008 to June 2009 and by using National Sanitation Foundation (NSF) water quality index, the probable use of this water is predicted. This work consists of laboratory tests for the evaluation of some water quality parameters of the Titas and to identify its probable use in various purposes. The results of the laboratory tests and NSF water quality index suggest that the water can be used for recreation, pisciculture and irrigation purposes but requires treatment before using for drinking.Keywords: Water pollution; Faecal coliform; Dissolved oxygen (DO); Biochemical oxygen demand (BOD).© 2011 JSR Publications. ISSN: 2070-0237 (Print); 2070-0245 (Online). All rights reserved.doi:10.3329/jsr.v3i1.6170                 J. Sci. Res. 3 (1), 151-159 (2011)


2020 ◽  
Vol 10 (1) ◽  
Author(s):  
Akumtoshi Lkr ◽  
M. R. Singh ◽  
Neizo Puro

AbstractThe Doyang River of Wokha district, Nagaland, NE India, has a strong economic and traditional attachment to the local people. It provides sufficient fertile plains and slopes for cultivation, good grounds for community fishing and hunting. It is not only important for the people of Wokha but also for the state of Nagaland because of the rich natural resources it provides. This study was conducted to assess the Water Quality Index (WQI) of the Doyang River from eight selected sampling stations. Maximum WQI values were recorded during monsoon season in all the stations followed by pre-monsoon and post-monsoon. Sampling stations located in the upstream of the river experience deteriorating WQI due to the presence of hydroelectric dam, changing landuse practices, increasing settlements and deforestation in the catchment and river banks. The overall WQI values showed good water quality status indicating suitability for different human uses. The present study points out that pH, DO and BOD played a central role in affecting the WQI of the river; however, in case of nutrient elements no such significant roles were observed in affecting the water quality of the river. The condition of water quality in our present study felt the necessity to adopt proper management policy and conservation efforts along the riparian zones of Doyang River.


Author(s):  
Siti Nor Nadrah Muhamad ◽  
Mohd Fazril Izhar Mohd Idris ◽  
Nurul Izzati Husna Wahab ◽  
Wan Nurshazelin Wan Shahidan

2016 ◽  
Vol 2016 ◽  
pp. 1-8 ◽  
Author(s):  
Anita Bhatnagar ◽  
Pooja Devi ◽  
M. P. George

The present study was designed to assess the impact of mass bathing and religious activities on water quality index (WQI) of prominent water bodies (eight) in Haryana, India. Water quality characteristics revealed significant increase in the values of nitrate, biochemical oxygen demand (BOD), turbidity, total dissolved solids (TDS), conductivity, total hardness, total alkalinity, and MPN count after the religious activities. The computed WQI at all the eight selected sites varied from 47.55 to 211.42. The results revealed that there was a significant increase in the value of WQI after mass bathing or any other ritual performed. Out of eight water bodies studied three (sites 3, 4, and 5) were found under good water quality status; four sites (1, 2, 6, and 7) depicted medium water quality but site 8 was found under poor water quality after the religious activities. The good water quality status of water bodies was correlated with larger size of the water bodies and less number of pilgrims; however, the poor WQI values may be attributed to smaller size of the water body and heavy load of pilgrims on such sites. Therefore, water of these religious water bodies needed to be regularly changed after mass bathing to protect the aquatic component from different contaminations.


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