Analisis  Kualitas Air Di Perairan Danau Toba Kecamatan Pangururan, Kabupaten Samosir

Silaban, Winarto; Silalahi, Mastiur Verawaty

doi:10.23887/jst-undiksha.v10i2.39500

Cited by 6 publications

(7 citation statements)

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“…Furthermore, Station_11 Marom located at upstream of Lake Toba, shows a light to moderate pollution water quality status. This result is in line with research conducted by Silaban and Silalahi (2021), which shows that the quality of the waters of Lake Toba is categorized as lightly polluted [6].…”

Section: Water Quality Statussupporting

confidence: 92%

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Water Quality Data Analysis from the Onlimo Monitoring System at 16 Stations in Priority Watersheds and Lakes

Yudo,

Wahyono,

Alhasa

et al. 2023

IOP Conf. Ser.: Earth Environ. Sci.

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Currently, the decline in the quality of river and lake water continues, for this reason, activities to control pollution and improve river and lake water quality are required. One effort to prevent this problem is to implement online water quality monitoring technology continuously and in real time. The information generated from the water quality monitoring system can be used as a basis for planning watershed management and determining river and lake water management policies at the national and regional levels. The purpose of this activity is to analyze river and lake water quality data and evaluate the performance of the monitoring systems in 16 water quality monitoring stations that have been built. The data being analyzed is from 2016 to 2020 and includes the parameters of temperature, conductivity, TDS, DO, pH, and turbidity. The 16 station locations are spread over the Ciliwung River, Cisadane River, Citarum River, Serayu River, Bengawan Solo River, and Lake Toba. This research method uses descriptive statistical analysis and the STORET method, which refers to the Decree of the Minister of Environment and Forestry Number 115 of 2003 and Government Regulation of the Republic of Indonesia Number 82 of 2001. The results of this study indicate that most of the rivers monitored fall into the moderate to heavily polluted category, especially the rivers downstream of the Ciliwung, Cisadane, and Bengawan Solo rivers. The results of the analysis of DO, TDS, conductivity, and turbidity parameters from 16 monitoring stations, mostly met the Class II quality standards.

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Section: Water Quality Statussupporting

confidence: 92%

“…Based on the result, Station_8 Wanganaji Dam, located upstream of Serayu River, has the lowest temperature value. This result is in line with the study conducted by Widyastuti, et al (2017) [6]. They stated that the lowest temperature was upstream of the Serayu River at about 17.9 °C.…”

Section: Temperaturesupporting

confidence: 92%

Water Quality Data Analysis from the Onlimo Monitoring System at 16 Stations in Priority Watersheds and Lakes

Yudo,

Wahyono,

Alhasa

et al. 2023

IOP Conf. Ser.: Earth Environ. Sci.

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“…The status of lake water quality in Cimahi City is presented in Table 4. Water quality in Cimahi City is not much different from lakes/lakes in other areas such as Lake Toba, Pangururan District, including the category of lightly polluted (Silaban & Silalahi, 2021), Situ Gunung Putri in Bogor Regency is lightly polluted (Aristawidya et al, 2020). ), Lake Expo Arena Area, Jaya Pura City, is moderately polluted (Prasetia & Walukow, 2021), Situ Gede Water, Tanggerang City, is moderately polluted (Purwanti H, 2019), Gili Meno Saltwater Lake, Lombok City is moderately polluted (Abdullah, 2021 ), Situ Jatijajar and Gadog, Depok City are lightly polluted (Permana et al, 2021), Sunter Lake, Jakarta City, is lightly polluted (Saputro, 2020), and Situ Cibuntu, Bogor City, is lightly polluted (Alfilaili, 2020).…”

Section: Resultsmentioning

confidence: 90%

Analysis of Lake Water Quality in Cimahi City, West Java Province

et al. 2023

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Cimahi City is experiencing raw water insecurity. This requires the local government to look for new water sources, such as rehabilitating the condition of existing lakes in their area so that they function again as raw water lake. This study aims to analyze water quality and parameters that exceed quality standards and to calculate the status of lake water quality. The data will be the basis for preparing priority recommendations for lake management. The calculation of this method uses the Pollution Index (PI) method. The lakes studied were lakes located at the Cimahi City Government location, at the Cibabat Hospital, Setiamanah, Ciseupan, and the Cimahi City Infantry Brigade Complex. Based on research results in 2021, all lakes will be in the moderately polluted category, while in 2022 they will be in the low-moderate pollutant category. Lake water quality that has improved is Setiamanah Lake and that in the Cimahi City Infantry Brigade Complex. The two lakes originally had moderate to moderate polluted status with an index value of 8.40 to 4.94, so efforts and control strategies are needed to reduce pollution in the 5 lakes.

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“…Oocystis sp. has an important role in the waters, namely as a producer of oxygen and as natural food [16]. In addition, it is also used as a phycoremediation agent.…”

Section: Figure 2 Oocystis Sp Magnification 400xmentioning

confidence: 99%

Monitoring the distribution of phytoplankton in vannamei shrimp cultivation in intensive system, Banyuwangi, East Java, Indonesia

Zulkarnain,

Sari,

Sari

et al. 2023

IOP Conf. Ser.: Earth Environ. Sci.

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The increase in Vannamei shrimp farming is closely related to an increase in the demand for shrimp feed. At present there are many technological developments in cultivating natural feed. The natural feed here refers to plankton which can be used as natural food for every organism of larvae in waters. Conditions in water will affect the distribution pattern of phytoplankton either horizontally or vertically. As a result, it affects the abundance of phytoplankton and subsequently also affects the value of the main productivity. The purpose of study is to find out the cultivation process and to find out the types of plankton that exist in Vannamei shrimp farming ponds. Plankton observations were carried out directly with the help of a microscope and haemocytometer, while the measurement of water quality using each instrument had been prepared for each parameter. The results of plankton observations found species of Chaetoceros sp., Oocystis sp., Oscillatoria sp. and Cyclotella sp. while the water quality measurements obtained temperature (29-31°C); DO during the day (7.6-9.5 ppm) and at night (4.0-4.6 ppm); pH in the morning (7.8-8, 5) and daylight (8.1-9.0); and salinity 26-27 ppt. The application of probiotics used carbon sources derived from molasses and katul.

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Analisis Kualitas Air Di Perairan Danau Toba Kecamatan Pangururan, Kabupaten Samosir

Cited by 6 publications

References 0 publications

Water Quality Data Analysis from the Onlimo Monitoring System at 16 Stations in Priority Watersheds and Lakes

Water Quality Data Analysis from the Onlimo Monitoring System at 16 Stations in Priority Watersheds and Lakes

Analysis of Lake Water Quality in Cimahi City, West Java Province

Monitoring the distribution of phytoplankton in vannamei shrimp cultivation in intensive system, Banyuwangi, East Java, Indonesia

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