A comparative evaluation of surface water quality standards for lakes and fish
ponds from Bucharest and vicinity

Monitoring of lakes and ponds water quality parameters is important to evaluate the interactions between quality and effects on aquatic organisms’ growth and health. Even if each water parameter individually may not be relevant, several parameters together can reveal dynamic processes that occur in the water. For instance, unbalanced pH values may increase ammonia and hydrogen sulfide toxicity. Nitrogen and phosphorus are associated with plant and algae growth, although phosphorus is generally the limiting nutrient in freshwater bodies. Accordingly, it is recommended to monitor and assess water quality parameters based on routine analyses. Therefore, the aim of this study was to generate an overview of our researches related to the monitoring of water quality collected from lakes and fish ponds. The parameters on the basis of which was evaluated the quality of water were: pH, electrical conductivity (EC), total hardness (TH), chemical oxygen demand (COD), nitrate-nitrogen (N-NO3-), nitrite nitrogen (N-NO2-), ammonium nitrogen (N-NH4+), phosphate phosphorus (P-PO43-).

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Cladoceran abundance in relation to water quality parameters of Chakki Talab, Bodhan, Telangana

International Journal of Current Engineering and Technology ◽

10.14741/ijcet.v8i01.10877 ◽

2018 ◽

Vol 8 (01) ◽

Author(s):

Vasudha Lingampally ◽

V.R. Solanki ◽

D. L. Anuradha ◽

Sabita Raja

Keyword(s):

Water Quality ◽

Dissolved Oxygen ◽

Oxygen Demand ◽

Total Dissolved Solids ◽

Quality Parameters ◽

Biological Oxygen Demand ◽

Water Quality Parameters ◽

Total Alkalinity ◽

Total Hardness ◽

One Year

In the present study an attempt has been made to evaluate water quality and related density of Cladocerans for a period of one year, October 2015 to September 2016. Water quality parameters such as temperature, PH, total dissolved solids, dissolved oxygen, biological oxygen demand, total alkalinity, total hardness, chlorides, phosphates, and nitrates are presented here to relate with the abundance of Cladocerans. The Cladoceran abundance reflects the eutrophic nature of the Chakki talab.

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Spatiotemporal Analysis of Surface Water Quality in Dong Thap Province, Vietnam Using Water Quality Index and Statistical Approaches

Water ◽

10.3390/w13030336 ◽

2021 ◽

Vol 13 (3) ◽

pp. 336

Author(s):

Nguyen Thanh Giao ◽

Phan Kim Anh ◽

Huynh Thi Hong Nhien

Keyword(s):

Water Pollution ◽

Water Quality ◽

Surface Water ◽

Water Quality Index ◽

Quality Index ◽

Oxygen Demand ◽

Surface Water Quality ◽

Quality Parameters ◽

Water Quality Parameters ◽

E Coli

The study was conducted to spatiotemporally analyze the quality, location and critical water variables influencing water quality using water monitoring data from the Department of Environment and Natural Resources, Dong Thap province in 2019. The water quality parameters including turbidity, pH, temperature, dissolved oxygen (DO), total suspended solids (TSS), biological oxygen demand (BOD), chemical oxygen demand (COD), nitrite (N-NO2−), nitrate (N-NO3−), ammonium (N-NH4+), total nitrogen (TN), orthophosphate (P-PO43−), chloride (Cl−), oil and grease, sulfate (SO42−), coliforms, and Escherichia coli (E. coli) were collected at 58 locations with the frequency of four times per year (February, May, August, and November). These parameters were compared with national technical regulation on surface water quality—QCVN 08-MT: 2015/BTNMT. Water quality index (WQI) was calculated and spatially presented by geographical information system (GIS) tool. Pearson correlation analysis, cluster analysis (CA), and principal component analysis (PCA) were used to evaluate the correlation among water quality parameters, group and reduce the sampling sites, and identify key parameters and potential water pollution sources. The results showed that TSS, BOD, COD, N-NH4+, P-PO43−, coliforms, and E. coli were the significant concerns impairing the water quality. Water quality was assessed from poor to medium levels by WQI analysis. CA suggested that the current monitoring locations could be reduced from 58 sites to 43 sites which can be saved the total monitoring budget up to 25.85%. PCA showed that temperature, pH, TSS, DO, BOD, COD, N-NH4+, N-NO2−, TN, P-PO43−, coliforms, and E. coli were the key water parameters influencing water quality in Dong Thap province’s canals and rivers; thus, these parameters should be monitored annually. The water pollution sources were possibly hydrological conditions, water runoff, riverbank erosion, domestic and urban activities, and industrial and agricultural discharges. Significantly, the municipal and agricultural wastes could be decisive factors to the change of surface water quality in the study area. Further studies need to focus on identifying sources of water pollution for implementing appropriate water management strategies.

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EVALUATING SURFACE WATER QUALITY AND WATER MONITORING PARAMETERS IN THE TIEN RIVER, VIETNAMESE MEKONG DELTA

Jurnal Teknologi ◽

10.11113/jurnalteknologi.v83.16355 ◽

2021 ◽

Vol 83 (3) ◽

pp. 29-36

Author(s):

Thanh Giao Nguyen ◽

Vo Quang Minh

Keyword(s):

Water Quality ◽

Surface Water ◽

Monitoring Program ◽

Oxygen Demand ◽

Surface Water Quality ◽

Principal Component ◽

Water Quality Monitoring ◽

Quality Parameters ◽

Water Monitoring ◽

Water Quality Parameters

The study aimed to evaluate the surface water quality of the Tien River and identify water quality parameters to be monitored using the water quality monitoring data in the period of 2011 - 2019. The water samples were collected at five locations from Tan Chau to Cho Moi districts, An Giang province for three times per year (i.e., in March, June, and September). Water quality parameters included temperature (oC), pH, dissolved oxygen (DO), total suspended solids (TSS), nitrate (NO3--N), orthophosphate (PO43--P), biological oxygen demand (BOD), and coliforms. These parameter results were compared with the national technical regulation on surface water quality QCVN 08-MT: 2015/BTNMT, column A1. Principal component analysis (PCA) was used to identify the sources of pollution and the main factors affecting water quality. The results of this study showed that DO concentration was lower and TSS, BOD, PO43--P, coliforms concentrations in the Tien river exceeded QCVN 08-MT: 2015/BTNMT, column A1. pH, temperature, and NO3--N values were in accordance with the permitted regulation. The water monitoring parameters were seasonally fluctuated. DO, BOD, TSS, and coliforms concentrations were higher in the rainy season whereas NO3--N and PO43--P were higher in the dry season. The PCA results illustrated that pH, TSS, DO, BOD, PO43--P and coliforms should be included in the monitoring program. Other indicators such as temperature and NO3--N could be considered excluded from the program to save costs.

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Status of Water Quality in the Tista River at Kaunia Point and its Impact on Aquatic Environment

Journal of Environmental Science and Natural Resources ◽

10.3329/jesnr.v8i1.24660 ◽

2015 ◽

Vol 8 (1) ◽

pp. 29-33

Author(s):

MS Islam ◽

MA Islam ◽

MJ Islam ◽

MH Kabir ◽

NT Meghla

Keyword(s):

Water Quality ◽

Oxygen Demand ◽

Surface Water Quality ◽

Aquatic Organisms ◽

Agricultural Runoff ◽

Quality Parameters ◽

Dry Season ◽

Anthropogenic Sources ◽

Wet Season ◽

Total Dissolved Solid

The study was conducted to investigate the surface water quality of the Tista River at Kaunia point in wet (September to November) and dry season (December to February) during the period from September 2013 to February 2014. The water samples were collected from five different sampling stations of Tista River mentioned as Station 1 (St-1), 2 (St-2), 3 (St-3), 4 (St-4) and 5 (St-5). The analysis of the study showed that the average transparency was 13.28 and 32.31 cm in wet and dry season, respectively, while the temperature was observed 25.86 and 18.18?C in wet and dry season, respectively. The observed electrical conductivity (EC) was 84 and 145.67 ?s cm-1, pH was 7.72 and 8.03, dissolve oxygen (DO) was 5.35 and 5.37 mg l-1, biochemical oxygen demand (BOD) 1.64 and 1.89 mg l-1 in wet and dry season, respectively. In wet season, the total dissolved solid (TDS) was measured 53.2 mg l-1, while 73.86 mg l-1 in dry season. The alkalinity was found 40.94 and 43.4 mg l-1 in wet and dry season, whereas, the hardness was found 98.47 and 102.46 mg l-1 in the following seasons. The study showed that most of the water quality parameters of the Tista River were suitable for aquatic organisms as well as fishes. However, the agricultural runoff and waste materials generated from anthropogenic sources could be the main causes of degradation of water quality and aquatic organisms.J. Environ. Sci. & Natural Resources, 8(1): 29-33 2015

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Surface Water Quality in the Forest Catchment – A Case Study of Tunga and Bhadra River Stretches, Karnataka

Current World Environment ◽

10.12944/cwe.15.2.10 ◽

2020 ◽

pp. 228-235

Author(s):

Santhosh Kumar T. M1 ◽

K. L Prakash

Keyword(s):

Water Quality ◽

Surface Water ◽

Monsoon Season ◽

Oxygen Demand ◽

Surface Water Quality ◽

Water Quality Assessment ◽

Quality Parameters ◽

Total Hardness ◽

Post Monsoon ◽

Post Monsoon Season

A need of water quality assessment of the rivers before enters into the human induced habitations play a vital role in maintenance of ecological balance. The surface water samples were randomly collected from the Tunga and Bhadra reservoirs situated in the downstream catchments of Western Ghats with semi-evergreen and mixed deciduous forests during January 2018 to December 2019. The samples were analyzed as per the Standard Methods prescribed for drinking water analysis. Increased trend of pH in Pre-monsoon and decreased trend in post monsoon season was observed and the mean concentrations of pH was ranged between 7.30 and 8.02. Electrical Conductivity values were found to be <143µS/cm and indicated that the water is suitable for irrigation and drinking purposes. The Total Dissolved Solids and Total Hardness values were indicated as soft water as values are <75 mg/L. A significant relation was noticed between Dissolved Oxygen (DO) and Biochemical Oxygen Demand during Post monsoon season. Whereas, no relationship was existing with water quality parameters in Tunga River and Bhadra reservoirs during monsoon (2019) wherein highest floods were received in this season. An insignificant pollution load was observed as the water flows through forest areas and no relationship exists between past mining activities in the Bhadra river catchment, sedimentation of reservoir and water quality. However, it is suggested to control of alterations in land use / land cover, use of fertilizer and pesticides, mono culture plantations and developmental activities to maintain the water quality in the study area to meet the domestic demands in the downstream.

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ANALYSIS OF POTENTIAL PHYSICO CHEMICAL WATER QUALITY PARAMETERS OF ELENGENA BEEL, JAGIROAD, MORIGAON, ASSAM

YMER Digital ◽

10.37896/ymer20.10/12 ◽

2021 ◽

Vol 20 (10) ◽

pp. 100-106

Author(s):

JAYANTA KUMAR BORA ◽

◽

MD. Y HASSAN ◽

M BURAGOHAIN ◽

◽

...

Keyword(s):

Water Quality ◽

Water Temperature ◽

Oxygen Demand ◽

Paper Mill ◽

Quality Parameters ◽

Water Quality Parameters ◽

Total Alkalinity ◽

Total Hardness ◽

Physico Chemical ◽

Chemical Water

The study was made to investigate the potential physico-chemical water quality of Elengena beel. In this study 40 nos water samples were collected from 4 sampling sites (10 from each) of Elengena beel and had been analyzed for some water quality parameters and ranges of results were found as - water temperature, transperancy, depth, pH, dissolved oxygen (DO), biological oxygen demand (BOD), chemical oxygen demand (COD), total dissolved solids (TDS), total suspended solids (TSS), total solids (TS), total alkalinity (TA), total hardness (TH), chloride (Cl-) and fluoride (F-). silicates (SiO2), free carbondioxide (FCO2), nitrate (NO3-), phosphate (PO43-), colour and odour. Nutrients were determined by following the standard procedures outlined in the American Public Health Association (APHA). The result showed that water temperature, transperancy, depth, pH, DO, BOD, COD, TA, TH, TS, TDS, SiO2 , F-CO2 , Cl- , NO3- , and PO43-were 19.9 ±0.28; 21.5 ± 0.71; 1.0 ± 0.23; 6.8 ± 0.15; 4.1 ± 0.34; 51.8 ± 2.32; 58.61 ± 3.22; 156.2 ± 1.2; 210.5 ± 0.2; 153.8 ±0.90; 170.2 ±0.60; 49.2 ± 0.85; 2.87 ± 0.02; 10.91 ± 1.32; 0.20 ± 0.01 and 0.10 ± 0.1 mg/L respectively. All the measured parameters were within the standard values of WHO. In general the present investigation found that the maximum parameters were not at a level of pollution. In order to stop further deterioration of Elengena beel water quality and to eventually restore the beneficial uses of the beel, management of effluents of Nagaon paper mill in the beel watershed should be given urgent priority.

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Influencing Factors Analysis of Taiwan Eutrophicated Reservoirs

Water ◽

10.3390/w12051325 ◽

2020 ◽

Vol 12 (5) ◽

pp. 1325 ◽

Cited By ~ 1

Author(s):

Marsha Savira Agatha Putri ◽

Jr-Lin Lin ◽

Lin-Han Chiang Hsieh ◽

Yasmin Zafirah ◽

Gerry Andhikaputra ◽

...

Keyword(s):

Water Quality ◽

Trophic State ◽

Oxygen Demand ◽

Principal Component ◽

Quality Parameters ◽

Water Quality Parameters ◽

Total Hardness ◽

Trophic State Index ◽

Weather Factors ◽

Domestic Water

Treatment cost and quality of domestic water are highly correlated with raw water quality in reservoirs. This study aims to identify the key factors that influence the trophic state levels and correlations among Carlson trophic state index (CTSI) levels, water quality parameters and weather factors in four major reservoirs in Taiwan from 2000 to 2017. Weather (e.g., air temperature, relative humidity, total precipitation, sunlight percentage and cloud cover) and water quality parameters (e.g., pH, chemical oxygen demand, suspended solids (SS), ammonia, total hardness, nitrate, nitrite and water temperature) were included in the principal component analysis and absolute principal component score models to evaluate the main governing factors of the trophic state levels (e.g., CTSI). SS were washed out by precipitation, thereby influencing the reservoir transparency tremendously and contributing over 50% to the CTSI level in eutrophicated reservoirs (e.g., the Shihmen and Chengchinghu Reservoirs). CTSI levels in the mesotrophic reservoir (e.g., Liyutan Reservoir) had strong correlation with chlorophyll-a and total phosphorus. Results show that rainfall/weather factors were the key driving factors that affected the CTSI levels in Taiwan eutrophicated reservoirs, indicating the need to consider basin management and the impacts of extreme precipitation in reservoir management and future policymaking.

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EVALUATING SURFACE WATER QUALITY AND TESTING FREQUENCY IN TIEN AND HAU RIVERS, AN GIANG PROVINCE, USING 10-YEAR MONITORING DATA

Scientific Journal of Tra Vinh University ◽

10.35382/18594816.1.37.2020.379 ◽

2020 ◽

Vol 1 (37) ◽

pp. 78-88

Author(s):

Giao Thanh Nguyen

Keyword(s):

Water Quality ◽

Surface Water ◽

Suspended Solids ◽

Oxygen Demand ◽

Surface Water Quality ◽

Quality Parameters ◽

Water Quality Parameters ◽

Monitoring Frequency ◽

Current Water ◽

The Individual

The study aimed to assess the variation of surface water quality and evaluate the monitoring frequency at threecontinuous monitoring stations on the Tien river (MT1 station) and Hau river (MH1 and MH2 station) over a 10-year period (2009-2018), with a monitoring frequency of 12 times per year (monthly). The water quality variables comprised of temperature (oC), pH, dissolved oxygen (DO, mg/L), total suspended solids (TSS, mg/L), nitrate (N-NO- 3 , mg/L), orthophosphate (P-PO3 4- mg/L), chemical oxygen demand (COD, mg/L), and coliforms (MPN/100 mL). The individual water quality parameters were assessed by comparison with National Technical Regulation on surface water quality (QCVN 08-MT: 2015/BTNMT). Monitoring frequency was evaluatedusing Cluster Analysis (CA). The findings revealed that surface water on both Tien and Hau rivers was perpetually polluted with suspended solids, organic matter, nutrients, and microorganisms. The CA identified that the frequencies of current water monitoring could be reduced from 12 times to 5 times per year, resulting in a 58% reduction in monitoring costs. Future study should focus on evaluating water quality parameters toencompass all water quality characteristics in the Tien and Hau rivers. International collaboration with countries that impact the river before flowing into Vietnam in water management should be enhanced to solve continuing water problems.

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Water Quality Monitoring with Emphasis on Estimation of Point and Diffuse Pollution Sources

Global NEST Journal ◽

10.30955/gnj.002911 ◽

2019 ◽

Vol 21 (2) ◽

pp. 163-171

Keyword(s):

Water Quality ◽

Organic Nitrogen ◽

Nitrate Nitrogen ◽

Anthropogenic Activities ◽

Oxygen Demand ◽

Water Quality Monitoring ◽

Total Coliform ◽

Ammonium Nitrogen ◽

Quality Parameters ◽

Water Quality Parameters

<p>Population growth, urbanization and anthropogenic activities are becoming a serious problem for water resources in Turkey, which necessitates their monitoring and maintenance of water quality. In this study, water quality was implemented in the Porsuk Stream in Inner Anatolia, Turkey. Water samples were collected at monthly intervals between the period of 2008-2010 at four selected stations. Twenty one water quality parameters were measured which are water temperature (T), pH, dissolved oxygen (DO), electrical conductivity (EC), salinity, turbidity, chloride, suspended solids, dissolved solids, organic nitrogen (Org-N), ammonium nitrogen (NH3-N), nitrite nitrogen (NO2-N), nitrate nitrogen (NO3-N), total organic carbon, biological oxygen demand (BOD), chemical oxygen demand (COD), total coliform, alkalinity, orthophosphate phosphorus (PO43--P), total phosphorus and chlorophyll-a. The monitoring was conducted to see how the water quality changed along the stream in response to various anthropogenic activities. Besides, a paired t-test was utilized to determine the concentration differences at stations above and below the single most important point source of pollutants (Eskişehir city). Moreover, a regression model was used to establish relations between water quality parameters and flow and to estimate nonpoint source loadings.</p>

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Assessement of Water Quality Parameters in Some Potential Pollutant Areas from Romania

Revista de Chimie ◽

10.37358/rc.18.8.6470 ◽

2018 ◽

Vol 69 (8) ◽

pp. 2045-2049

Author(s):

Catalina Gabriela Gheorghe ◽

Andreea Bondarev ◽

Ion Onutu

Keyword(s):

Water Quality ◽

Surface Water ◽

Surface Water Quality ◽

Quality Parameters ◽

Water Quality Parameters ◽

Quality Data ◽

Chemical Parameters ◽

Water Quality Data ◽

Pollutant Sources ◽

Water Quality Forecasting

Monitoring of environmental factors allows the achievement of some important objectives regarding water quality, forecasting, warning and intervention. The aim of this paper is to investigate water quality parameters in some potential pollutant sources from northern, southern and east-southern areas of Romania. Surface water quality data for some selected chemical parameters were collected and analyzed at different points from March to May 2017.

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