scholarly journals Toxicity and genotoxicity of water and sediment from streams on dotted duckweed (Landoltia punctata)

2014 ◽  
Vol 74 (4) ◽  
pp. 769-778 ◽  
Author(s):  
R Factori ◽  
SM Leles ◽  
GC Novakowski ◽  
CLSC Rocha ◽  
SM Thomaz
Keyword(s):  
Rural Areas ◽  
Test Organism ◽  
Industrial Effluents ◽  
Genotoxic Effects ◽  
Relative Growth ◽  
Fresh Biomass ◽  
Water And Sediment ◽  
Quality Of Water ◽  
Floating Macrophyte

Most rivers are used as a source to supply entire cities; the quality of water is directly related to the quality of tributaries. Unfortunately men have neglected the importance of streams, which receive domestic and industrial effluents and transport nutrients and pesticides from rural areas. Given the complexity of the mixtures discharged into these water bodies, this study aimed to evaluate the quality of water and sediment of ten tributaries of Pirapó River, in Maringá, Paraná State, Brazil. To this end, the free-floating macrophyte Landoltia punctata (G. Meyer) Les & D.J.Crawford was used as test organism in microcosm, and the toxicity of water and sediment samples was evaluated by the relative growth rate, dry/fresh biomass ratio, and genotoxic effects (comet assay). Samples of water and sediment of each stream were arranged in microcosms with L. punctata. Seven days later, plants were collected for analysis. Nutrient levels were higher than the reference location, indicating eutrophication, but the results indicated a toxic effect for only three streams, and a genotoxic effect for all streams.

scholarly journals Quality of water and sediment of different cottage industries water bodies: A case study

2017 ◽  
Vol 29 (2) ◽  
pp. 133-141
Author(s):  
Farzana Yasmin ◽  
Sayma Khanom ◽  
Md Sunjid Sultan Ferdous
Keyword(s):  
Heavy Metals ◽  
Surface Water ◽  
Industrial Effluents ◽  
Heavy Metal Concentration ◽  
Industrial Area ◽  
Water And Sediment ◽  
Quality Of Water ◽  
Cottage Industries

This study was carried out in order to assess the effect of industrial effluents on the surface water and sediment around BSCIC industrial area, Narayanganj. Different parameters such as TDS, DO, pH, EC, Turbidity, BOD, COD, and heavy metals such as Pb, Zn, Cd, Mn, Cr and Ni were investigated. The results showed that, different industries inside the BSCIC area discharge effluents composed of various chemicals at considerably higher levels compared to pollution limits of inland surface water standard given by DoE. Significantly higher levels of EC (3540 ?S/cm), TDS (3862 mg/l), BOD (143.71 mg/l) and COD (396.30 mg/l) were found in the water. Also a higher level of heavy metals along with high pH was found both for the water and sediment around the BSCIC area. A significant correlation was found between the pH, EC and heavy metal concentration of the collected water samples. The above findings point out that the water around the studied area is quite polluted by the industrial activities of the BSCIC area and malicious for surrounding environment.Bangladesh J. Sci. Res. 29(2): 133-141, December-2016

DANUBIUS-RI: Future Vision and Research Needs for River-Sea Systems

2020 ◽  
Author(s):  
Sina Bold ◽  
Jana Friedrich ◽  
Peter Heininger ◽  
Chris Bradley ◽  
Andrew Tyler ◽  
...  
Keyword(s):  
Climate Change ◽  
Ecosystem Services ◽  
Extreme Events ◽  
Research Priorities ◽  
Research Infrastructure ◽  
Natural Connection ◽  
Water And Sediment ◽  
Quality Of Water ◽  
Excellent Research

<p><span>More than three quarters of the Earth's land surface is connected to the ocean by rivers. This natural connection between land and ocean by rivers, estuaries and deltas, as well as coastal seas, is essential for humankind in providing key ecosystem services (incl. food and water). However, the quantity and quality of water and sediment transported along the river-sea continuum is changing fundamentally with implications for the structure and functioning of associated ecosystems that are in turn affecting the continued provision of ecosystems services. </span></p><p><span>DANUBIUS-RI, the International Centre for Advanced Studies on River-Sea Systems, is a distributed research infrastructure (RI) integrating studies of rivers and their catchments, transitional waters, such as estuaries, deltas and lagoons, and their adjacent coastal seas (i.e. River-Sea Systems). DANUBIUS-RI’s vision is to achieve healthy River-Sea Systems and advance their sustainable management in order to live within the planet’s ecological limits by 2050. DANUBIUS-RI’s mission is to facilitate excellent research from the river source to the sea </span><span>by (1) providing access to </span><span>state-of-the art </span><span>facilities, methods and tools, as well as samples and data; (2) bringing together relevant expertise to advance process and system understanding and to enhance stakeholder engagement; and (3) enabling the development of integrated management and policy-making in </span><span>River-Sea Systems. DANUBIUS-RI’s mission-oriented, integrated, interdisciplinary and participatory approach seeks to change the process and system understanding of River-Sea Systems and their respective management.</span></p><p><span>DANUBIUS-RI’s</span><span> Science & Innovation Agenda </span><span>is </span><span>guiding the RI’s evolution as it progresses from preparation through implementation to operation. It describes DANUBIUS-RI’s vision, mission and approach, and provides a scientific framework for the RI’s design and highlights the research priorities for the first five years. </span><span>The framework includes interrelated key challenges in River-Sea Systems, such as global change including climate change and extreme events</span><span>, changes in hydromorphology, the </span><span>quantity and quality of water and sediment across the river-sea continuum as well as the structure and functioning of associated ecosystems</span><span>. DANUBIUS-RI’s research priorities are in line with forthcoming missions of Horizon Europe, which have been applied to River-Sea Systems (1): “Achieving healthy inland, transitional and coastal waters” including the research priorities (a) Water Quantity, (b) Sediment Balance, (c) Nutrients and Pollutants, (d) Biodiversity, (e) Ecosystem Services; and (2): “Adapting to Climate Change: Enhancing Resilience of River-Sea Systems” including the research priorities (f) Climate Change, (g) Extreme Events.</span></p><p><span>In 2016, the European Strategy Forum for Research Infrastructures (ESFRI) included DANUBIUS-RI in its roadmap highlighting the need for a research infrastructure at the freshwater-marine interface. </span><span>The Horizon 2020 project DANUBIUS-PP (Preparatory Phase) has built the scientific, legal and financial foundation to enable DANUBIUS-RI to proceed to implementation (www.danubius-pp.eu.</span></p>

Influence of the Flooding in 2002 on the Plankton and the Quality of Water and Sediment of the River Elbe over Its Longitudinal Profile

2005 ◽  
Vol 33 (5) ◽  
pp. 430-448 ◽  
Author(s):  
Rudolf Pepelnik ◽  
Bernhard Karrasch ◽  
Rainer Niedergesäß ◽  
Burkhard Erbslöh ◽  
Maren Mehrens ◽  
...  
Keyword(s):  
Longitudinal Profile ◽  
Water And Sediment ◽  
Quality Of Water ◽  
River Elbe

Effects of invasive fish and quality of water and sediment on macrophytes biomass, and their consequences for the waterbird community of a Mediterranean floodplain

2016 ◽  
Vol 551-552 ◽  
pp. 513-521 ◽  
Author(s):  
Celia Laguna ◽  
Jhon J. López-Perea ◽  
Javier Viñuela ◽  
Máximo Florín ◽  
Jordi Feliu ◽  
...  
Keyword(s):  
Invasive Fish ◽  
Water And Sediment ◽  
Quality Of Water

scholarly journals Avaliação de água de poços tubulares para consumo humano no Município de Boa Vista, Paraíba

2016 ◽  
Vol 11 (1) ◽  
pp. 08
Author(s):  
Débora Samara Cruz Rocha Farias ◽  
Soahd Arruda Rached Farias ◽  
José Dantas Neto
Keyword(s):  
Rural Communities ◽  
Water Resources ◽  
Rural Areas ◽  
Underground Water ◽  
Total Hardness ◽  
Human Consumption ◽  
Surface Water Resources ◽  
Deep Wells ◽  
Quality Of Water

<p>Na Região do Semiárido nordestino a diminuição da disponibilidade dos recursos hídricos superficiais tem levado a população da zona rural a buscar, nos recursos hídricos subterrâneos, a solução de seus problemas de abastecimento, o que tem acarretado um crescimento no número de perfurações de poços tubulares profundos. O trabalho objetivou avaliar a qualidade de águas utilizadas para consumo humano em áreas rurais da região de Boa Vista, Paraíba. As amostras de água foram coletadas em poços tubulares, em dois períodos: 4º trimestre de 2014 e 2º trimestre de 2015. As variáveis avaliadas foram: pH, CE, Ca, Mg, Na, K, HCO<sub>3 </sub><sup>-</sup>, Cl, alcalinidade e dureza total e SDT. Das águas analisadas 94,55% são consideradas salgadas nas duas amostragens. Em sua maioria os teores de dureza, alcalinidade, cloreto, magnésio, sódio e potássio estão fora do limite estabelecido pela Portaria vigente no país. Com relação ao pH, as amostras se encontram dentro do padrão normal.</p><p align="center"><strong><em>Water quality for human consumption in rural communities in the municipality of Boa Vista, state Paraíba</em></strong></p><p><strong>Abstract</strong><strong>: </strong>In the semi-arid northeastern region of decreasing availability of surface water resources has led to population from the countryside to look for underground water resources to solve their supply problems, which has led to an increase in the number of deep wells drilling. The study aimed to assess the quality of water used for human consumption in rural areas of the region Boa Vista, Paraíba. Water samples were collected from wells in two periods: 4th quarter 2014 and 2nd quarter of 2015. The variables evaluated were: pH, EC, Ca, Mg, Na, K, HCO<sub>3</sub><sup>-</sup>, Cl, alkalinity and total hardness and TDS. 94.55% of the analyzed waters are considered cured in the two sampling. Mostly hardness levels, alkalinity, chloride, magnesium, sodium, potassium are beyond the limit set by current Ordinance in the country. Regarding the pH samples are within the normal pattern.<strong></strong></p>

Assessment of quality of water wells in rural areas in Tirana City, Albania

2019 ◽  
Author(s):  
Milidin Bakalli ◽  
Danjela Bakalli ◽  
Julis Selamaj
Keyword(s):  
Rural Areas ◽  
Quality Of Water ◽  
Water Wells

scholarly journals Water Quality Assessment of the Nile Delta Lagoons

2020 ◽  
Vol 13 ◽  
pp. 117862212096307
Author(s):  
Karim M Morsy ◽  
Amrit K Mishra ◽  
Mona M Galal
Keyword(s):  
Water Quality ◽  
Trace Metals ◽  
Nile Delta ◽  
Sediment Quality ◽  
Oxygen Demand ◽  
Industrial Effluents ◽  
Water Quality Assessment ◽  
Fish Mortality ◽  
Water And Sediment

Nile Delta Lagoons have been formed 7000 years before the present. The lagoons were aqua-cultural and ecological keystones for the early Egyptian agricultural civilization. The water quality of Nile Delta Lagoons has been deteriorated with the economic development, population rapid increase, and the related industrialization, which exert high pressure on the surrounding environment. The 4 lagoons (1) Maryut, (2) Edku, (3) Burullus, and (4) Manzala are large is surface area, shallow in depth and located on the Nile Delta that receive great amounts of agricultural drainage, sewage, and industrial effluents before discharging into the Mediterranean Sea. The aim of this study is to monitor and assess the water and sediment quality of the lagoons. In light of this assessment, it was found that excessive nutrients are discharged into these lagoons causing severe eutrophication. In addition, relatively low values of dissolved oxygen were recorded causing fish mortality in the lagoons which amplifies in summer as the temperature increases. The article also examined the physical and biological parameters in addition to the chemical concentration of trace metals (Zn, Fe, Pb, Mn, Cr, and Cd) in the water and sediment samples that were collected from the 4 lagoons. High values of biological oxygen demand, chemical oxygen demand, total coliform, fecal coliform, fecal streptococci, ammonia (NH3), total nitrogen, and total phosphorus were recorded. In addition, high concentrations of trace metals were found in the water and sediments of the 4 lagoons.

scholarly journals Evaluation of water and sediment quality of urban streams in Santa Cruz do Sul County, RS, Brasil, using ecotoxicological assays

2014 ◽  
Vol 26 (1) ◽  
pp. 18-25 ◽  
Author(s):  
Luã de Vargas ◽  
Camila Athanásio ◽  
Adriana Düpont ◽  
Adilson Ben da Costa ◽  
Eduardo Aléxis Lobo
Keyword(s):  
Local Population ◽  
Sediment Quality ◽  
Test Organism ◽  
Ceriodaphnia Dubia ◽  
Urban Streams ◽  
Santa Cruz ◽  
Sediment Samples ◽  
Water And Sediment ◽  
Water And Sediment Quality

AIM: This study aimed to assess the quality of water and sediment of urban streams (Lajeado, Preto, Pedras and Lewis-Pedroso) located in Santa Cruz do Sul County, RS, Brazil, using the microcrustacean Ceriodaphnia dubia as test-organism. METHODS: Quarterly scientific excursions to the streams were held on August and November 2011, February and May of 2012 in order to collect water and sediment samples, in the upper reaches (P1, P3, P5, P7) and lower reaches (P2, P4, P6, P8), totalizing 8 points. To evaluate the toxicity (acute and chronic), the microcrustacean C. dubia was used. RESULTS AND CONCLUSION: The results indicated high toxicity levels detected in samples P2, P6 and P8 (lower reaches), as they caused the mortality of 100% of organisms in the water samples (P6 and P8) and sediment samples (P2 and P8), denoting acute effect. Yet, all upstream sites showed chronic effects in sediment samples, at least for one collection period, with the highest significant toxicity level among all samples (55.2%), which indicates the presence of contamination even in upper areas. These results indicated a strong degradation of the water and sediment quality of urban streams coming from the wastewater and industrial discharges of the urban area, which can cause damage to the biota as well as the public health, due to the multiples uses of water that the local population does, highlighting many of them as inappropriate to the water quality detected, such as the primary contact recreation (balneability).

scholarly journals Histopathological Effects and Element Concentration Of Body Tissues Of Ranid Frog Inhabiting Polluted Water Sites

2016 ◽  
Vol 12 (8) ◽  
pp. 388
Author(s):  
Aqeela Zahra ◽  
Muhammad Tayyab ◽  
Irfan Zia Qureshi
Keyword(s):  
Heavy Metals ◽  
Industrial Effluents ◽  
Polluted Water ◽  
Tissue Samples ◽  
Body Tissues ◽  
Quality Of Water ◽  
Run Off ◽  
Histopathological Effects ◽  
Abnormal Tissue

Freshwater or wetlands are being polluted on regular basis due to the release of domestic sewage and most importantly industrial effluents that include chemicals, organic pollutants and heavy metals, and run-off from land-based activities containing leached fertilizers. Pollutants are such substances that reduce quality of water that effect directly and indirectly. The present study was carried out on Korang River Islamabad/Rawalpindi. Two different locations were selected along the Korang River. The data were collected two times during the current study period; March 2012, and October 2012. Ranid frogs (n=10) were captured from all selected sites, which were dissected to collect blood and body tissue samples. During the month of March and October the concentration of heavy metals in water samples increase and decrease significantly at both sites of Korang River. The continuous leaching of contaminants may cause abnormal tissue damage in amphibians making them more vulnerable to predation and competition and also decreased reproductive success.

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