Water Quality Status Of River Research Articles

Assessment of Changes in Water Quality of Enim River, Muara Enim, South Sumatera, Indonesia to Determine Environmental Designations

Enim river flows within several sub-districts in Muara Enim Regency, including Semendo Darat Laut, Semendo Darat Tengah, Semendo Darat Ulu, Tanjung Agung, Lawang Kidul, and Muara Enim. This study examines changes in the water quality of the Enim River due to domestic wastewater discharges and the presence of the coal mining industry and household industries. Water samples were taken from 4 sampling stations along the Enim River in 2018 and 2023. Data consisted of results of physical, chemical, and microbiological parameters. The status of river water quality was assessed from the pollution index. The results of Enim River surface water quality measurements showed that the parameters of total suspended solids, Dissolved Oxygen, iron (Fe), copper (Cu), oil, and grease concentrations had breached the criteria set for Class II water quality, referring to Government Regulation of the Republic of Indonesia Number 82 of 2001. The results showed that there has been a change in the water quality status of Enim River from 2018 to 2023. The river water pollution index was (1.43-2.47) in 2018 and (1.49-3.85) in 2023 (lightly polluted). Comprehensive water treatment and preventive measures are necessary to manage and mitigate additional pollution in the Enim River.

Spatio-temporal analysis of river water pollution levels in the Angke-Pesanggrahan watershed

River water is an important part of people’s lives, both in quantity and quality. Various utilizations will influence the decline in water quality, especially from household, industrial, and solid waste or garbage disposal. One of the watersheds affected by this anthropogenic influence is the Angke-Pesanggrahan watershed in Jakarta Province. The study was conducted at 31 observation points of several rivers, such as the Angke, Sekertaris, Sepak, Mookervart, Grogol, Cengkareng, Kamal, and Pesanggrahan Rivers. This study aims to analyze the water pollution level spatio-temporal for eight periods in 2021-2022. The dynamics of the pollution level are analyzed by the Pollution Index (PI) using water physical-chemical-biological parameters. The pollution level in each river was then mapped using ArcGIS software. The pollution level of this watershed was light to heavily polluted (PI value of 4.13-19.34). The status of river water quality in almost all rivers is likely to be worse in 2022 than in 2021. High pollution levels are generally found in almost all rivers, especially the Sekertaris and Sepak Rivers. Pesanggrahan River has a better status, with an average PI of 8.06 (moderately polluted). Parameters often do not meet quality standards: color, TSS, ammonia, free chlorine, H2S, BOD, COD, DO, nitrite, MBAS, fecal coliform, and total coliform. Pollution in the watershed needs to be resolved by involving local stakeholders, implementing communal WWTP, applying for stricter wastewater discharge permits, and continuously educating and empowering the community on sustainable river management.

The inconsistency of land use along the 10 m river buffer of East Kalibaru, Jakarta

The East Kalibaru River extends from Depok/South Jakarta to northern Jakarta. Visually, the riverbank is crowded with settlements, even though the Ministerial Regulation of Public Works and Housing Number 28 Years 2015 has regulated the River Boundary Line, where rivers must have a 10 m wide buffer zone. This study aims to reveal the inconsistency of land use along the 10 m river buffer of East Kalibaru using a quantitative and qualitative descriptive approach using spatial data, river hydrology, and river water quality status for the analysis process. The river was categorized into three segments (upstream, midstream, and downstream). Using ArcGIS, delineation was carried out along the 10 m river buffer of East Kalibaru and then overlaid with land use data, resulting in land use type suitability. Land use suitability was evaluated by calculating the percentage of land area based on compliance with the regulations. The inconsistency of land use along the 10 m river buffer of East Kalibaru amounted to 46.25% (26.21 ha). The most significant land use inconsistency occurred in the midstream segment (68.24% or 13.23 ha), whereas the best was found in the downstream segment (26.54% or 4.36 ha). Residential and office & trade land use types dominate the inconsistency of land use. Residential areas are mainly found in the midstream segment, with an area reaching 47.42% or 9.19 ha. The government should gradually be disciplined the 46.25% inconsistent area because the river buffers must have 100% suitable land use to optimize the function of the river boundary.

Macroinvertebrate community structure, pollution tolerance, diversity and feeding functional groups in polluted urban rivers under different black and odorous levels

Macroinvertebrate community structure parameters can reflect the water quality and water ecosystem health status of rivers. In this paper, using the results of macroinvertebrates in 16 urban rivers in Sichuan Province from November 2020 to March 2021, we independently evaluated the level of black odor in urban rivers based on the mathematical model. On this basis, we examined the community structure, fouling tolerance, diversity, and feeding functional groups of macrobenthos in rivers with different degrees of black odor. During the study, a total of 39 species of macroinvertebrates were collected and identified to 3 phyla, 7 classes, 16 orders, 26 families and 30 genera. Urban rivers changed from non-black and non-odorous to black and odorous: (1) the dominant species, Chironomus flaviplumus, Physa fontinalis and Barbronia weberi, changed to Chironomus flaviplumus, a fouling-tolerant species with wide adaptability; (2) According to the tolerance values (TVs), the pollution resistance categories gradually increased as the level of black odor increased, which indicated the level of black odor in water bodies; (3) The calculation of the Hilsenhoff biotic indices (HBI) indicated that 83.3% of the sampled sites were moderately to heavily polluted. In general, the severity of water quality pollution in the black and odorous type of river was significantly higher than that in the non-black and odorous type of river, and with the deepening of the degree of blackness and odor the quality of the water deteriorated; (4) The community structure had an unstable community structure and a low diversity index of macroinvertebrate species; (5) The taxa of feeding functional groups shifted from the presence of all five types of feeding functional groups to the dominance of fouling-resistant species represented by scrapers. The results summarize the characteristics and change patterns of various indicators under different black-odorous degrees, indicating that the HBI can be used as an alternative indicator for the evaluation of black odorous water, and the number of species of Chironomidae can indicate the degree of black odor in water bodies.

Determination of The Water Quality Status of The Kalimalang River In Telaga Murni Recidence, Bekasi District

The behavior of the people around the riverbanks, such as throwing garbage directly into the river body, and the river's proximity to steel-producing companies impacts river water quality. This research aims to determine the Kalimalang River water quality status in Telaga Murni housing. The sampling method used in this study is the Grab Sampling method with a combination of Purposive Sampling, which is taken from the most polluted points so that it is expected to obtain river water samples that best follow the conditions of river water quality from upstream to downstream. From the results of laboratory tests & calculations using the Storet method and Pollution Index, river water in Telaga Murni housing is classified as heavily polluted. The Phenol and Total Coliform values exceed the quality standards indicating contamination from domestic and industrial wastewater.

Kajian Status Mutu Air Sungai Akibat Buangan Air Lindi TPA Piyungan di Kabupaten Bantul

This research was conducted along a tributary that empties into the Opak River in Piyungan District. This study aimed to examine the characteristics of leachate from the Piyungan landfill, river water quality, and the status of river water quality due to the discharge of leachate from the Piyungan landfill. The research method used is a survey method with sampling and field observations. Purposive sampling is used to take river sample points. There are five sample points taken with 15 test parameters used to analyze river water quality, including COD, BOD, TSS, TDS, Zinc (Zn), Iron (Fe), Chromium, Copper (Cu), Lead (Pb), Mercury (Hg), pH, temperature, turbidity, color, and total coliform. River water quality status is obtained by calculating the Pollution Index (IP) of class II quality standard, Governor of DIY Regulation Number 20 of 2008, without the total coliform parameter. Based on the analysis results, the characteristics of the leachate water of the Piyungan TPA have concentrations of BOD, COD, TSS, TDS, and Iron (Fe), which exceed the quality standards of Yogyakarta Special Region Regulation Number 7 of 2016. River water quality shows that parameters BOD, COD, TSS, TDS, Zinc (Zn), Iron (Fe), turbidity, color, and total coliform exceed class II water quality standards regulation of the Governor of the Special Region of Yogyakarta Number 20 of 2008. The highest pollution load in rivers is Total Coliform, BOD, and COD. The status of river water quality from all sample point locations has the status of heavily polluted water (Point S1), moderately polluted (Point S2, S3, S4), and lightly polluted (Point S5). Thus, river water quality around the Piyungan landfill has decreased due to the discharge of leachate from the Piyungan landfill and community activities around the river.

Examining the Water Quality Situation in Klampok River, Semarang through the Application of the NSF-WQI (National Sanitation Foundation – Water Quality Index) Model

The Klampok River is one of the rivers that crosses the Bandungan, Bawen, Bergas and Pringapus Districts. The increase in the number of residents in the river basin which is not matched by the availability of land encourages the conversion of land functions that are not in accordance with their designation. The existence of the Klampok River as a water body receiving wastewater resulting from anthropogenic activities has caused the Klampok River to become polluted. Thus, it is important to study the water quality and water quality status of the Klampok River for nature conservation. This study aims to determine the water quality status of the Klampok River using the water quality index method, namely the National Sanitation Foundation – Water Quality Index (NSF-WQI) with reference to class II river water quality standards. NSF-WQI is a method that uses several specific parameters to determine river water quality.DO, fecal coliform, pH, BOD, nitrate, phosphate, temperature, turbidity, and total solids.The 2018 water quality index using the NSF-WQI method is in the range54.13 – 65.38with medium-good quality status. Meanwhile, the water quality index for 2019 using the NSF-WQI method is within the range35.47 – 66.60with moderate status, except for sampling point 6 which has bad status.

Water Quality Status of Way Batanghari River, Metro City, Lampung Province Based on Water Fit for Consumption Parameters

Introduction: The need of water fit for consumption will continue to be sustainable along with the increasing human population, so we need a source of clean water that suitable for consumption. Therefore, this study aims to determine the water quality status of the Way Batanghari river based on an analysis of the feasibility of potable water. Methods: This research used survey method and water sampling in the Way Batanghari tributary, Metro City, Lampung using the consecutive sampling method. Results and Discussion: The physical parameters which include water color exceeds the 50 TCU and indicates the odor of ammonia. The chemical parameters which include COD were 63.5 mg/L (4th class) upstream, 59.3 mg/L (4th class) downstream. DO values upstream were 4.36 mg/L (1st class), 2.83 mg/L (3rd class) downstream. The phosporus value shows a number of 0.54 mg/L (2nd class). pH parameter which shows a value of 7.1 on the upstream, 6.6 on the downstream. Found species from class of Bacillariophyceae, Cyanophyceae as parameters of pollution. Conclusion: Based on Regulation of the Minister of Health, Republic of Indonesia Number 492 of 2010, this river has color and odor of water shows that indicates not meet the requirements for consumption.

A biological diatom indices based preliminary assessment of water quality of Thamirabarani river, Southern India

ABSTRACT Diatoms have long been used as bio-indicators for the assessment of surface water quality. This study investigates the biological diatom index (BDI) and water quality index (WQI) for evaluating the water quality impact in the Thamirabarani River, Southern India. Diatom and water samples were taken for the present investigation from ten different locations along the river. The samples were enumerated and the morphometrics valve was documented by light microscopy. In the study area, a total of 70 diatom taxa belonging to 28 genera were recorded. The diatom indices implemented in OMNIDIA software version 6.1 was used to infer the river water quality status. The results showed that based on the BDI and WQI analysis values varied from 6.7 to 17.4 and 48 to 71 were observed. According to the BDI and WQI analysis result during the study period in the river revealed the water quality varied between good (Oligo-mesotrophic) to bad (Eutrophic) ecological conditions. The biological diatom index and water quality index results indicate the respective locations (Site 2, Site 3, Site 7, Site 8, Site 9 and Site 10) represent bad water quality. The result indicated moderate water quality at Sites 4 and Site 6. The diatom indices and water quality index results show the locations Site 1, and Site 5 indicate good water quality. The biological diatom index results from diatom assemblages show more information about the water quality and environmental impact on the river. For the national assessment of water quality better to use diatoms along with physico-chemical parameters variables. Based on the analysis result reveal that the major component of water quality degradation was due to anthropogenic activities, domestic waste and industrial effluents in the study area.

Media Synchronicity Environmental Communication Perspective Rehabilitate Rivers from Domestic Waste

Abstract. Nowadays, the world is experiencing climate change and water pollution which can have bad impact on many aspects. Thus, the purpose of this study is to analyze the relationship between media synchronicity and task performance and communication performance in rehabilitating rivers from domestic waste in the Citarum Harum program. This study uses survey and the withdrawal technique uses multi-clustering, by choosing an area that is very close to the river which is the target of the Citarum Harum Program. The population is taken from two villages in Bandung Regency with heavily polluted river water quality status and uses multiple correlation coefficients and structural equation modeling partial least squares 3 as the data analysis technique. It shows a weak relationship between communication process variables and task performance and a negative relationship between the effects of moderation on communication performance. So, it is necessary to develop further models to improve these sub-variables.

Analisis Kualitas Air di Sungai Marbau

This study aims to analyze the quality of river water and the water quality status of the Marbau watershed in North Labuhanbatu Regency based on water quality criteria and to formulate a pollution control strategy that needs to be implemented. The method used is a quantitative descriptive method by analyzing the status of river water quality based on the pollution index. The results showed that the P1 value of Marbau river water ranged from 0.94 to 1.82. The recommended pollution control strategies are: 1) maintaining river protection zones involving environmental cadres and green communities in monitoring; 2) monitoring and controlling water pollution along the river; 3) improve river water quality monitoring; 5) supervision of the discharge of waste water into rivers; 4) granting permits for disposal of wastewater (IPLC) into rivers must pay attention to the condition of the capacity to accommodate river pollution loads and enforce environmental law against business actors who violate established environmental quality standards. In conclusion, the quality of the Marbau river has decreased with the water quality status being slightly polluted. The recommendations for water pollution control strategies that need to be implemented are progressive strategies.
 Keywords: Water Quality, North Labuhanbatu, Marbau

Evaluation of the Water Quality Status and Pollution Load Carrying Capacity of Way Umpu River, Way Kanan District, Lampung Province, Indonesia, Based on Land Use

This research aims to evaluate the water quality status and pollution load-carrying capacity of the Way Umpu River based on land use. This was carried out using the survey method by directly measuring the river water debit, pH, temperature, and dissolved oxygen (DO) on-site, taking the water sample to analyze the parameters of water quality such as total dissolved solid (TDS), total suspended solid (TSS), water color, turbidity, salinity, biochemical oxygen demand (BOD), chemical oxygen demand (COD), fecal coli, total coliform, and plankton in the lab, and monitoring the land use. The results showed that the use of land for illegal mining and the settlement of inhabitants in station-4 (ST-4) caused water pollution. Furthermore, based on Class III water use, the parameters in ST-4 exceeded the standards for TSS, color, and BOD, while other stations such as ST-1, ST-2, ST-3, ST-5, and ST-6 showed clean and good water quality statuses. It was also found that the pollution load-carrying capacity of the Way Umpu River has not yet been exceeded for Class III and the quality of the water may be improved when the river water debit increases. In addition, the plankton community structure on ST-1, ST-2, and ST-3 showed the number of species and individuals, and the diversity index was relatively high compared to ST-4, ST-5, and ST-6. It was concluded that the integrated evaluation was based on water quality status, plankton community structure, and pollution load analyses. The land use for illegal mining will decrease the water quality and the plankton community structure compared to other land uses.

ANALISIS STATUS MUTU AIR SUNGAI KARANG MUMUS SEGMEN JEMBATAN S. PARMAN DAN JEMBATAN PERNIAGAAN KOTA SAMARINDA

Karang Mumus is a river that is widely used by the community for various activities to meet the needs of life such as bathing, washing and as a source of drinking water. This causes water quality to decline and results in health impacts on river users. The purpose of this study was to analyze the water quality status of the Karang Mumus River Segment of the S. Parman Bridge and the Perniagaan Bridge of Samarinda City. This research is an observational descriptive study, which is to find out what are the potential sources of pollution in river water, find out how the quality of river water is using the Pollution Index method and find out the health impacts caused by river water. The research shows that the sources of pollution in the S. Parman Bridge and Perniagaan Bridge segments come from household and industrial activities. The status of river water quality in the S. Parman Bridge and Perniagaan Bridge segments has light and heavy polluted categories with 4 parameters that do not meet the quality standards, namely, TSS, COD, DO, and Fecal Coli. The health impacts caused by using river water in the S. Parman Bridge segment and Perniagaan are diarrhea, dysentery and skin irritation. The largest percentage of diseases experienced by the people of the river area of the S. Parman Bridge segment is diarrhea by 30%, while in the Perniagaan Bridge segment, skin irritation is 40%.
 Keywords: Karang Mumus River; Pollution Index; Water Quality

Status of groundwater and river water quality around the location of illegal gold mining activities in Lantung District, Sumbawa

The Lantung area is one of the places on Sumbawa Island with a large gold deposit. One of the activities of the Lantung people that has the potential to damage the environment is separating gold from mercury. This study aimed to examine the activity of the gold laundering process, and the level of contamination of groundwater and river water due to gold processing from amalgamation by mercury (Hg<sup>+</sup>) waste. In this study, sampling was carried out for each location, namely two samples of wastewater, six samples of river water, and two samples of groundwater, which were then tested in the laboratory on the parameters of mercury and TSS. At the same time, pH was measured in the field. Furthermore, from the survey results, it was found that the use of mercury was ±150-250 mL at each gold processing location. The results showed that all samples from wastewater (tailings), groundwater and river water were contaminated with mercury with levels exceeding the acceptable quality standards. Furthermore, the status of water quality using the Pollution Index (IP) method shows that wastewater is light to moderately polluted, groundwater is lightly polluted, and river water is also lightly to moderately polluted.

Analysis of Water Quality Status in Tuntang River, Semarang Regency in 2022

Tuntang River is a river located in Tuntang District, Semarang Regency. The study was conducted to determine the quality of river water, status of river water quality and sources of river pollution in the Tuntang River in the Upstream Segment so that steps can be taken to tackle pollution in the Tuntang River in the Upstream Segment. This research was conducted during the dry season, samples were taken during the January-June 2022 period. The quality status was assessed using the Pollution Index (PI) method. The results of the study of 2 sample points were at lightly polluted status based on Class II Quality Standards according to Government Regulation Number 22 of 2021. Based on calculations using the PI method at Point 1 were in normal conditions. Meanwhile, point 2 is in a moderately polluted condition. In the analysis using Geography Information System (GIS) there are several sources of pollution, namely, in the domestic sector, plantation sector, agricultural sector (rice fields and fields), livestock sector, and mining sector.

Spatio-temporal analysis of the Brantas river water quality status by using principal component weighted index (PCWI)

River, as one of the surface water resources, has faced many contaminations due to domestic and industrial activities in its surrounding, and thus routine water quality monitoring is required. This activity yields a large number of water quality characteristics that can be very useful to evaluate the status of river quality status. In this study, we integrated a statistical multivariate analysis such as Principal Component Analysis (PCA) and conventional Water Quality Index (WQI) measure to produce a data-driven composite index for water quality assessment. We implemented this technique to evaluate the status of Brantas River, the largest river in East Java Province-Indonesia, using a long-term dataset collected from 2012 to 2021. The study area was divided into three classes: upstream, midstream, and downstream. Results of the study suggested that the pollution level in the Brantas River fluctuates yearly. Meanwhile, the degree of contamination increased from upstream to downstream.

GIS-based Spatial Assessment of Post COVID Water Quality Status of Turag River for Water Resource Conservation in Bangladesh

The COVID-19 pandemic has had enormous effects on human life and the environment, particularly freshwater ecosystems, on a global scale. Despite its numerous effects, the pandemic has improved the quality of the environment, allowing devastated ecosystems to recover. During the COVID lockdown period, many researchers observed positive amendments in environmental quality in various parts of the world. Due to increased industrialization and urbanization over the past several decades, Dhaka's peripheral rivers have grown highly polluted. In this study, an attempt was made to illustrate the post-covid surface water quality scenario of Bangladesh's hihgly contaminated Turag River. Therefore, for the first time, a GIS-based spatial analysis of water quality index was used to endeavor to quantify 16 water quality parameters (pH, EC, temperature, turbidity, salinity, TDS, DO, Na+, K+ Ca2+, Mg2+ Cl-, Cu, Pb, Fe, and Cd) in the river Turag. Thus, it could serve as a reference work for future researches in Bangladesh. After calculating the WQI for the collected samples, it was determined that the water quality status at all sampling stations was extremely poor because each WQI was greater than 100. Using the Kriging method of interpolation, the encroaching WQS were predicted and visually represented using GIS maps. The findings of this study are particularly concerning, as all recorded WQS samples surpassed the standard limits. Based on these findings, we urged for the rapid deployment of proper water management practices and policies in order to safeguard and manage the water resources.

Long-Term (2002–2021) Trend in Nutrient-Related Pollution at Small Stratified Inland Estuaries, the Kishon SE Mediterranean Case

Nutrient pollution may negatively affect the water quality and ecological status of rivers and estuaries worldwide, specifically in stratified and small inland estuaries. We present a long-term, two-decade data set of dissolved inorganic nutrient concentrations, chlorophyll-a (chl-a), dissolved oxygen (DO), and potentially toxic algal cell concentrations at the Kishon River estuary (Israel) as a case study for assessing nutrient ecological thresholds in such type of estuaries, prevalent along the Mediterranean coast of Israel. In-situ measurements and water samples were collected at 3 permanent stations at the lower part of the estuary every March and October/November in 40 campaigns over the years 2002 to 2021. In spite of an improvement in nutrient loads and concentrations as recorded over the last 2 decades, the nutrient and chl-a levels at the Kishon estuary surface water represent mostly a ‘bad’ or ‘moderate’ ecological state, considering the recommended thresholds discussed in this study. It is suggested to develop a combined suite of nutrient and biological variables for assessing Good Environmental Status (GES), considering the relatively high residence time of such small, low-flow estuarine water bodies.

Water Quality Status of the Rivers in Tembilahan City Based on Physical-Chemical Parameters and Storet Index

Tembilahan city has several tidal-type rivers flowing into the Indragiri river which encountered a waste pollution problem. This research aims to obtain insight into the water quality of the rivers in Tembilahan City. Characteristics of rivers that flow in urban areas are vulnerable to water quality degradation and environmental pollution due to high anthropogenic activities. Water quality data, which includes physical and chemical properties of water, were obtained from monitoring four rivers as sampling stations representing several rivers in Tembilahan city. The sampling location was determined based on the representativeness of the human activity area. The river water quality status was analysed by using Storet Index. The results showed that the water quality of the rivers in Tembilahan City has a score of -31 which indicates that the rivers are categorised as polluted rivers. Therefore, there is a need for river revitalisation management with the participation of the public sector and the community in Tembilahan City.

Determining River Water Quality Status based on the Pollution Index Method as Control of Environmental Quality: The Laeya River, South Konawe Regency

This study aims to analyze and determine the water quality status of the Laeya River for the provision of raw water in South Konawe Regency. This research was conducted in South Konawe Regency during 2022, using one method, namely the Pollution Index method. The Pollution Index method is used to determine the level of pollution from the Laeya River for the provision of raw water in South Konawe Regency. The results showed that the Laeya River at Station-I, Station-II, and Station-III obtained Pollution Index values of 2.511, 3.768, and 2.963, of the three stations whose parameters were analyzed, all of them met the quality standards except Total Suspended Solids (TSS), Chemical Oxygen Demand (COD), and Total of Coliform at Station-I. TSS, Biological Oxygen Demand (BOD), COD and Total of Coliform at Station-II, and TSS, Dissolved Oxygen (DO), BOD, COD, Detergent and Total of Coliform at Station-III, so that the water quality status of the Laeya River belonged to the classification of mild contaminants for Station-I, Station-II, and Station-III.