scholarly journals Quantitative vulnerability assessment of Corda river water basin: impacts of seasonality on water quality in the State of Maranhao

2020 ◽  
Vol 42 ◽  
pp. e2
Author(s):  
Késia Gomes da SIlva Cavalcanti ◽  
Darlan Ferreira Da Silva ◽  
Neuriane SIlva Lima ◽  
Rita De Cássia Mendonça ◽  
Wallace Ribeiro Nunes Neto ◽  
...  
Keyword(s):  
Public Health ◽  
Water Quality ◽  
Physicochemical Parameters ◽  
Total Dissolved Solids ◽  
Dry Season ◽  
American Public Health Association ◽  
Quality Of Water ◽  
Health Association ◽  
Nitrite Nitrate

The Corda river is the main source of fresh water for recreation, leisure, supply and irrigation to the municipality of Barra do Corda - MA. The objective of the present study was to evaluate the physicochemical parameters of Corda river’s water using the methodology described by the American Public Health Association. The water samples were collected in the seasonal period spanning between February and September of the year of 2018. The parameters which were analyzed during the study were pH, conductivity, turbidity, total dissolved solids and salinity, besides concentrations of nitrite, nitrate, and total phosphorus. Three principal components were identified during the PC Analysis. Those components explain more than 74% of the total variance observed during the rainy and dry season. Axis 1and 2 included variables which were related to quality of water and could be affected by the change in seasons. The results indicated that pH (7.11), P (2,82 mg L-1), NO3- (3,23 mg L-1), turbidity (35.82 NTU) and conductivity (35.83 µS/cm) parameters were most affected by changing from rainy to dry season.

scholarly journals Performance Evaluation of Tuntang Watershed based on Quantity and Quality of Water

2016 ◽  
Vol 30 (2) ◽  
pp. 176
Author(s):  
Ugro Hari Murtiono ◽  
Paimin Paimin
Keyword(s):  
Water Quality ◽  
Drinking Water ◽  
Performance Evaluation ◽  
Dissolved Oxygen ◽  
Water Discharge ◽  
Total Dissolved Solids ◽  
Dry Season ◽  
Water Quantity ◽  
Quality Of Water

The objective of the study was to evaluate the performance of Tuntang Catchment based on water quantity and quality area ranging from its upstream to downstream. The method used to determine the water quantity was by carrying out ground study on water discharge in the dry season (June 2011) in the research site, while the water quality was determined by conducting a laboratory analysis on the samples obtained from the sites in both the rainy and dry season (January and June 2011). The results indicated that the quantity of water discharge in Tuntang River was categorized “good”, although it was utilized for many uses such as irrigation, hydropower, and drinking water. Most of water discharges were mainly supplied from the upstream of Rawa Pening Lake. The water quality determined from the parameters of total dissolved solids, conductivity, pH, phosphate, and nitrate could be classified as “good”, meanwhile, the turbidity and dissolved oxygen were classified as “poor”.

scholarly journals Assessment of Quality of Groundwater in Kandarvakottai and Karambakudi Areas of Pudukkottai District, Tamilnadu, India

2009 ◽  
Vol 6 (3) ◽  
pp. 898-904
Author(s):  
D. Ilangeswaran ◽  
R. Kumar ◽  
D. Kannan
Keyword(s):  
Water Quality ◽  
Electrical Conductivity ◽  
Physicochemical Parameters ◽  
Quality Standards ◽  
Physicochemical Characteristics ◽  
Total Dissolved Solids ◽  
Water Quality Standards ◽  
Standard Procedures ◽  
Groundwater Samples

Various samples of groundwater were collected from different areas of Kandarvakottai and Karambakudi of Pudukkottai District, Tamilnadu and analyzed for their physicochemical characteristics. The results of this analysis were compared with the water quality standards of ISI, WHO and CPHEEO. In this analysis the various physicochemical parameters such as pH, electrical conductivity, turbidity, total dissolved solids, Cl-, F-, SO42-, PO43-, NO3-, NO2-, CN-, Nas+, K+, NH3, Mn, Fe, Ca & Mg hardnessetc., were determined using standard procedures. The quality of groundwater samples were discussed with respect to these parameters and thus an attempt were made to ascertain the quality of groundwater used for drinking and cooking purposes in and around Kandarvakottai and Karambakudi areas.

scholarly journals Multivariate and Spatial Analysis of Physicochemical Parameters in an Irrigation District, Chihuahua, Mexico

Water ◽  
2018 ◽  
Vol 10 (8) ◽  
pp. 1037 ◽  
Author(s):  
Jesús Prieto-Amparán ◽  
Beatriz Rocha-Gutiérrez ◽  
María Ballinas-Casarrubias ◽  
María Valles-Aragón ◽  
María Peralta-Pérez ◽  
...  
Keyword(s):  
Water Quality ◽  
Physicochemical Parameters ◽  
Reduction Potential ◽  
Principal Component ◽  
Total Dissolved Solids ◽  
Irrigation District ◽  
Maximum Permissible Level ◽  
Site Water ◽  
Agricultural Use

Water quality is relevant due to the complexity of the interaction of physicochemical and biological parameters. The Irrigation District 005 (ID005) is one of the most important agricultural region in Chihuahua, México; for that reason, it was proposed to investigate the water quality of the site. Water samples were collected in two periods: Summer (S1) and Fall (S2). The samples were taken from 65 wells in S1, and 54 wells in S2. Physicochemical parameters (PhP) such as Arsenic (As), Temperature, Electrical Conductivity (EC), Oxide Reduction Potential (ORP), Hardness, pH, Total Dissolved Solids (TDS), and Turbidity were analyzed. The data were subjected to statistical principal component analysis (PCA), cluster analysis (CA) and spatial variability tests. In both seasons, the TDS exceeded the Mexican maximum permissible level (MPL) (35% S1, 39% S2). Turbidity exceeded the MPL in S1 (29%) and in S2 (12%). Arsenic was above the MPL for water of agricultural use in 9% (S1) and 13% (S2) of the wells. The PCA results suggested that most variations in water quality in S1 were due to As, pH and Temperature, followed by EC, TDS and Hardness; while in S2 to EC, TDS and Hardness, followed by As and pH.

Fecal and Coliform Levels as Indicative Factors in Deterioration of the Water Quality of

2014 ◽  
Vol 10 (1) ◽  
Author(s):  
EUKENE OPORTO BENSIG ◽  
MARY JOYCE L. FLORES ◽  
FLEURDELIZ F. MAGLANGIT
Keyword(s):  
Water Quality ◽  
Surface Waters ◽  
Physicochemical Parameters ◽  
Oxygen Demand ◽  
Aquatic Ecology ◽  
Total Dissolved Solids ◽  
Biological Oxygen Demand ◽  
Indicator Bacteria ◽  
The Difference

The use of surface waters such as rivers for domestic, agricultural andindustrial purposes have made them vulnerable to pollution leading to impairedwater quality. The water quality of Lahug River in Cebu City was evaluated usingcoliforms as indicators, in relation with physicochemical parameters such as biological oxygen demand (BOD), conductivity, dissolved oxygen (DO), nitrate,pH, phosphate, salinity, temperature, total dissolved solids (TDS) and totalsuspended solids (TSS). Sampling was done once a month from November 2011to April 2012 in three stations covering the upstream, midstream and downstream.The multiple tube fermentation technique was used for the analysis of coliforms.The level of these indicator bacteria increased from the upstream towards thelower reaches of the river especially in the months of February to April; however,the difference in values across time was not significant. This implies that therewas a continuous fecal pollution in the river. There were no statistically significantcorrelations between FCs and TCs with the physicochemical parameters. Anegative relationship was observed among FCs and TCs with pH, TSS, DOand nitrate (p>0.05). These results suggest the presence of sewage and organicpollutants in the river.Keywords: Aquatic Ecology, water quality, coliform, physicochemical parameters,experimental design, Philippines

scholarly journals KARAKTERISTIKHABITATDANSEBARAN JENIS IKAN DI SUNGAIKAPUAS BAGIAN TENGAHDANHILIR

2017 ◽  
Vol 3 (5) ◽  
pp. 277
Author(s):  
Susilo Adjie ◽  
Agus Djoko Utomo
Keyword(s):  
Public Health ◽  
Water Quality ◽  
Fish Species ◽  
Water Samples ◽  
Flood Plain ◽  
Habitat Characteristics ◽  
American Public Health Association ◽  
Conservation Area ◽  
Health Association ◽  
Distribution Of Fish

Sungai Kapuas memiliki keanekaragaman jenis ikan yang tinggi dilaporkan mencapai sekitar 200 spesies. Penelitian ini bertujuan untuk mengetahui karakteristik habitat serta sebaran jenis ikan di Sungai Kapuas bagian tengah dan hilir. Penelitian ini dilakukan pada bulan April, Juli, September, dan Nopember 2006. Parameter yang diamati meliputi kualitas air (suhu, kecerahan, daya hantar listrik, pH, CO2, oksigen terlarut, alkalinitas, BOD, PPO 4, N-NO3, N-NO2, COD, N-NH3, dan salinitas), habitat perairan, serta sebaran jenis ikan. Contoh air diambil dari sembilan stasiun pengamatan yaitu di bagian tengah Tengkidap, Pengembung, Pemerak, Bukit Tekenang, dan Sambar Indah dan di bagian hilir Muara Jungkat, Sungai Raya, Muara Sungai Tayan, dan Semitau, contoh air dianalisis menggunakan American Public Health Association (1986). Hasil pengamatan menunjukkan bahwa karakteristik kualitas air bagian tengah dan hilir relatif sama dan karakteristik habitat Sungai Kapuas bagian tengah merupakan daerah rawa banjiran (flood plain) yang banyak terdapat hutan rawa danmerupakan kawasan konservasi dari Taman Nasional Danau Sentarum. Karakteristik habitat Sungai Kapuas bagian hilir dipengaruhi oleh pasang surut air laut dan merupakan kawasan industri. Jenis ikan yang dijumpai di sepanjang stasiun pengamatan terdapatsekitar 123 jenis, penyebarannya terkonsentrasi di sungai bagian tengah ± 120 jenis yang didominansi oleh ikan Cyprinidae dan Sungai Kapuas bagian hilir ±85 jenis yang didominansi oleh ikan dukang (Arius stomi) dan janggut(Polynemus longipectoralis). Kapuas River has a high diversity of fish species reported to reach about 200 species. This study aimed to characterize the habitat and distribution of fish species in the Kapuas River middle and downstream sections. The study was conducted in April, July, September, and November 2006. The parameters observed included water quality (temperature, brightness, electrical conductivity, pH, CO2, dissolved oxygen, alkalinity, BOD, P-PO4, NNO3, N-NO2, COD, NH3-N, and salinity), and aquatic habitats distribution of fish species. Water samples taken from nine observation stations are in the middle Tengkidap, Pengembung, Pemerak, Bukit Tekenang, and Sambar Indah and in the downstream Muara Jungkat, Sungai Raya, Muara Sungai Tayan, and Semitau, water samples were analyzed using the American Public Health Association (1986). The results showed that characteristics of water quality downstream of the middle and relatively similar, habitat characteristics of the Kapuas River and the middle is a swamp area flood plain that there are still a lot of swamp forest and is a conservation area of the Park Lake Sentarum. Characteristics of the Kapuas River downstream habitats are influenced by tides and is an industrial area. Types of fish that are found along the observation stations are about 123 species, its distribution is concentrated at the center of the ± 120 River dominated by fish species cyprinidae and Kapuas River downstream of ± 85 species dominated by fish dukang (Arius stomi) and janggut (Polynemus longipectoralis).

scholarly journals Water Management of River Beaches—A Portuguese Case Study

Geosciences ◽  
2021 ◽  
Vol 11 (4) ◽  
pp. 152
Author(s):  
Maria Oliveira ◽  
Margarida Antunes ◽  
Ana Carvalho
Keyword(s):  
Water Quality ◽  
Physicochemical Parameters ◽  
Continuous Monitoring ◽  
Water Quality Management ◽  
Quality Of Water ◽  
Microbiological Parameters ◽  
Awareness Raising ◽  
The Town

The quality of water is crucial for the qualification of river beaches. The Cávado River watershed (Northern Portugal) contains five river beaches with a regular and specific mandatory monitorization. The main subject of this research is the evaluation of spatial and temporal water microbiological and physicochemical parameters to assess the water quality improvement and consequently watershed management. The results of monitoring surface water, considering microbiological parameters from the five river beaches (2015/19), and physicochemical parameters from three water points along the Cávado River (2018/19) were considered. The river beaches located upstream of the town of Braga has an “excellent” and “good” quality, while the river beach located downstream shows a lower water quality. The physicochemical water results indicated that there is a progressive degradation of water quality from upstream to downstream of the river, which is associated with the influence of domestic and industrial activities. To improve water quality, continuous monitoring will be necessary, with the implementation of adequate awareness-raising programs and strategic water quality management by the population and local agents.

scholarly journals Challenges Regarding Water Quality of Eutrophic Reservoirs in Urban Landscapes: A Mapping Literature Review

2018 ◽  
Vol 16 (1) ◽  
pp. 40 ◽  
Author(s):  
Sofia Oliver ◽  
Jason Corburn ◽  
Helena Ribeiro
Keyword(s):  
Public Health ◽  
Water Quality ◽  
Drainage Water ◽  
Urban Landscapes ◽  
Anthropogenic Pressure ◽  
Quality Of Water ◽  
Mapping Review ◽  
Unsafe Water ◽  
Eutrophic Reservoirs

Urbanized river basins usually suffer from anthropogenic pressure, compromising the quality of water. Unsafe water is a risk to public health, especially when there are occurrences of HABs (Harmful Algae Blooms) as in the case of cyanobacteria, which cause different human health problems. In this paper, we aimed to review the scientific literature documenting what has been studied in the scope of the stratified reservoirs of urbanized basins. The mapping review method was used to categorize existing literature on urbanized watersheds and eutrophic reservoirs. Using the keywords “Eutrophic Reservoir” and “Urban” and selecting all the years of open publication on the Science web page, we obtained 69 results, 53 of them meeting the requirements established for the search. Many of the studies mention as the most important determinant for eutrophication of reservoirs and the proliferation of algae, the anthropogenic influence through the diffuse load of streets, domestic and industrial sewage, and even drainage water from agricultural areas in the basin. The results of this study reinforce that informal settlements without sanitary infrastructure are aggravating the deterioration of water quality in urban water sources and therefore posing many risks to public health.

scholarly journals Benthic macroinvertebrates diversity as bioindicators of water quality of Nasarawa Reservoir Katsina State Nigeria

2020 ◽  
Vol 12 (1) ◽  
pp. 449-456
Author(s):  
Zahraddeen Hassan Yusuf
Keyword(s):  
Water Quality ◽  
Benthic Macroinvertebrates ◽  
Working Party ◽  
Dry Season ◽  
Wet Season ◽  
Quality Of Water ◽  
Physico Chemical ◽  
Invertebrate Population ◽  
Number Of Individuals

This study was carried out to assess the water quality of Nasarawa using benthic macroinvertebrates as bioindicators. Biological monitoring working party (BMWP) scoring system was the index used to assess the ecosystem health of Nasarawa reservoir. A total of 4460 macrobenthic invertebrate comprising three phyla, three classes, six families and seventeen species were recorded. The overall macrobenthic population at the different stations revealed that the study area was dominated by Mollusca (41.18%), Oligochaetae (23.53%), Coleoptera and Diptera (11.77%), Mollusca (29.06%), Ephemerophtera and Odonata (5.89%). (BMWP) score of 65.7 was obtained for Nasarawa reservoir which classifies the reservoir as moderately polluted. Higher BMWP score of 65.7 was recorded in the wet season compared to the dry season value of 58.7. More macrobenthic invertebrate population was recorded in the dry season than in the wet season in Nasarawa reservoir. Simpson (1-D), Shannon (H) and evenness were higher during the dry season than in the wet season but dominance was higher in the wet season. Species richness as revealed by the Margaleff and Menhinick index was higher during the wet season than in the dry season. The variations in taxa and number of individuals during the months of sampling was not significantly different (P>0.05). It was found that agricultural activities, washing and bathing could alter physico-chemical parameters of the stream and hence changing the abundance of macroinvertebrates as well as the quality of water. This study, therefore, recommends that the source of pollutants should be controlled and the stream regularly monitored by the relevant authorities. Keywords: Benthic macroinvertebrates, Bioindicator, Water quality, Reservoir

scholarly journals Water Quality in the Cultivation of Catfish (Clarias gariepinus) and Nile Tilapia (Oreochromis niloticus) in the Aquaponic Biofloc System

2019 ◽  
pp. 1-6
Author(s):  
Irfan Zidni ◽  
Iskandar . ◽  
Ibnu Dwi Buwono ◽  
Benedikta Prasiwi Mahargyani
Keyword(s):  
Water Quality ◽  
Nile Tilapia ◽  
Clarias Gariepinus ◽  
Stocking Density ◽  
Quality Of Water ◽  
Randomized Design ◽  
Nile Tilapia Oreochromis Niloticus ◽  
Nitrite Nitrate ◽  
Fish Productivity

Aims: Water quality is one of them being an important role in terms of cultivation. Good water quality can support growth productivity in aquaculture. This is also of great concern when the rest of fish metabolism results that can contaminate fish contained in the maintenance media and if water is changed every day, water carrying toxins can pollute the area around the cultivation. One of the first steps to reduce the toxic content found in the maintenance media and the area around cultivation is to use aquaponic cultivation using biofloc. It is also expected to minimize the toxin content in maintenance media. This research aims to determine the comparison of the polyculture stocking density of sangkuriang catfish and nile tilapia which results in water quality that supports fish productivity. Study Design:  The research was conducted experimentally. Place and Duration of Study: This research was carried out for 40 days between March 2019 - April 2019 in the Ciparanje Laboratory of the Faculty of Fisheries and Marine Sciences, Universitas Padjadjaran. Methodology: The method used in this research is experimental using a completely randomized design (CRD), consisting of 5 treatments with 3 replications. The treatments to be given are dense stocking variations with the following treatments: A(75 catfish:75 tilapia), B(100 catfish:50 tilapia), C(125 catfish:25 tilapia), D(150 catfish), E(150 tilapia). Results: Water Quality Measured During The Study Namely, DO, Temperature, Ph, Nitrite, Nitrate And Ammonia Are Still In The Threshold For The Growth Of Test Animals During Maintenance. Conclusion: Based on the results of the research that has been done, it can be concluded that the quality of water in maintenance media using aquaponics biofloc gives good water quality values on maintenance media and is still within the threshold for the growth of catfish and tilapia.

Sign in / Sign up

Export Citation Format

Share Document