Kualitas Air Situ Lebak Wangi Bogor Berdasarkan Analisa Fisika, Kimia dan Biologi

Abstract

<div class="WordSection1"><p><em>Abstrak</em> - <strong>Situ Lebak Wangi merupakan situ yang berada di daerah Bogor, dan awalnya dimanfaatkan sebagai tempat penampungan air saat musim hujan untuk peningkatkan persediaan air tanah. Saat ini, Situ Lebak Wangi dimanfaatkan sebagai tempat pembuangan limbah oleh masyarakat. Hal ini dapat menyebabkan perubahan kualitas baik fisik, kimia dan biologi perairan situ. Untuk itu perlu dilakukan penelitian terhadap kualitas fisik, kimia dan biologi perairan Situ Lebak Wangi agar diperoleh informasi mengenai kualitas perairannya sehingga dapat disosialisasikan kepada masyarakat di sekitarnya nilai penting konservasi, pengelolaan dan pemanfaatan situ tersebut. Hasil pengukuran sifat fisik dan kimia air menunjukkan bahwa suhu di perairan Situ Lebak Wangi masih memenuhi baku mutu air kelas 1, nilai total padatan terlarut perairan Situ masih di bawah ambang batas baku mutu yang dipersyaratkan, nilai kecerahan di perairan Situ Lebak Wangi berkisar antara 67,17 – 80,83 cm dengan nilai rata-rata 74,46 cm, nilai pH perairan danau lebih rendah dari perairan sungai, yaitu berkisar antara 6,60–8-80. Pengukuran DO menunjukkan bahwa di perairan danau konsumsi oksigennya lebih tinggi, sedangkan hasil BOD5 menunjukkan bahwa perairan Situ Lebak Wangi sudah tercemar oleh bahan organik mudah urai (BOD5). Nilai daya hantar listrik berkisar antara 112,0 – 118,0 µhos/cm. Hasil analisa kualitas air Situ Lebak Wangi secara keseluruhan menunjukkan bahwa perairan tersebut tidak layak untuk dijadikan sebagai air baku, karena mengandung bakteri patogen Salmonella-Shigella yang merupakan penyebab thypus dan kolera. </strong></p><p> </p><p><strong><em>Keata Kunci </em></strong> - kualitas fisik, kimia dan biologi; Situ Lebak Wangi; Perairan; Baku mutu air</p></div><br clear="all" /><p> </p><p><em>Abstract</em> - <strong>Situ Lebak Wangi is a place located in the Bogor area, and was originally used as a water reservoir during the rainy season to increase groundwater supply. Currently, Situ Lebak Wangi is used as a waste disposal site by the community. This can lead to changes in the quality of both physical, chemical and biological waters there. Therefore, research on the physical, chemical and biological qualities of waters of Situ Lebak Wangi to obtain information about the quality of the waters so that it can be socialized to the community around the importance of conservation, management and utilization of the site. The result of measurement of physical and chemical properties of water shows that the temperature in Situ Lebak Wangi waters still meet the water quality standard class 1, the total dissolved solids of waters Situ is still below the required quality standard threshold, the brightness value in Situ Lebak Wangi waters ranges between 67, 17 - 80.83 cm with an average rating of 74.46 cm, the pH value of the lake waters lower than river waters, which ranged from 6.60-8-80. Measurements of DO indicate that in lake waters oxygen consumption is higher, whereas BOD5 results show that waters Situ Lebak Wangi already contaminated by organic material easily explained (BOD5). The electrical conductivity values range from 112.0 - 118.0 μhos / cm. The result of Situ Lebak Wangi water quality analysis as a whole shows that the water is not feasible to serve as raw water, because it contains Salmonella-Shigella pathogen bacteria which is the cause of thypus and cholera.</strong></p><p><strong> </strong></p><p><strong><em>Keywords</em></strong><strong> - </strong><em>physical quality, chemistry and biology, </em><em>Situ Lebak Wangi, </em><em>Waters, Water quality standards</em><strong><em></em></strong></p>

Evaluasi Karakteristik Fisik Kimiawi Perairan Situ Cibuntu, Kabupaten Bogor, Jawa Barat

“…The electrical conductivity at Cibuntu Pond with an average value of 43.95 μS/cm was lower than that in the observations in 2013 with a value of 80.76 μS/cm (Sadi, 2013). The value was also lower than that of Lebak Wangi Pond (Elfidasari et al, 2015).…”

“…The measured TDS parameter with an average value of 28.78 mg/L was lower when compared to the results of the previous studies with a value of 50 mg/L (Dianto et al, 2020). The value was also lower when compared to the TDS value in Pond Lebak Wangi, which had an average of 56.78 mg/L (Elfidasari et al, 2015). This condition follows the conductivity value, which was lower at Cibuntu Pond than at Lebak Wangi Pond.…”

Water quality index and pollution loading capacity of Setu Babakan, Jakarta-Indonesia

“…BOD concentrations in the middle and outlet of the lake were the highest. Sedimentation or accumulation of organic wastes increases the intensity of microbial decomposition that consumes available dissolved oxygen in the water; hence, high BOD [19]. Also, Inlets 1 and 2 had high BOD levels because these points continuously received inputs of organic compounds generated by industrial, domestic, and fishing activities.…”

Physical Water Quality Contaminated by Soil-Transmitted Helminths in Sumbersari District, Jember Regency

“…Previous research conducted in 2017 in Bogor shows that the water source of Situ Lebak Wangi still meets water quality standards based on physical and chemical quality tests. However, the presence of Coliform bacteria was found in biological tests (12). The physical quality of water and its effect on intestinal parasite contamination, especially STH is still an underresearched area.…”