Changes in physicochemical, heavy metals and air quality in life episode of Aplocheilus panchax along Mahanadi industrial belt of India as a function of social lockdowns

2020 ◽  
Author(s):  
Biswaranjan Paital ◽  
Pawan Agrawal
Keyword(s):  
Heavy Metals ◽  
Water Quality ◽  
Air Quality ◽  
Dissolved Oxygen ◽  
Environmental Audit ◽  
Temperature Conductivity ◽  
Mahanadi River ◽  
Positive Effects ◽  
Environmental Status ◽  
First Time

Abstract The COVID-19 induced lockdowns have many positive effects on the environment. However, a preplanned experiment explaining the impacts of such lockdowns on environmental markers and appearance of fish species is lacking. We hypothesize that spotting the fish Aplocheilus panchax along the industrial belt of Mahanadi River near Cuttack in a never seen manner could be due to the regenerated environment. Heavy metals, water quality and air qualities along with spotting A. panchax in up, mid and down stations in Mahanadi River at Jagatpur industrial basins were analysed at pre-lockdown (end of March 2020) and after 60 days of lockdown (last week of May 2020). Here we show that an overall reduction of 45, 61, 79, 100, 97 and 90% of Fe, Cu, Ni, Cd, Pb and Zn, respectively, was recorded in the studied area after lockdowns. Similarly, dissolved oxygen and pH was elevated by 26 and 7%, respectively. Water temperature, conductivity and total dissolved solute levels were reduced by 7, 46 and 15%, respectively. Air NO2, SO2, NH3, PM2.5, PM10 and CO levels were alleviated by 58.75, 80.33, 72.22, 76.28, 77.33 and 80.15%, respectively. Finally, for the first time we documented about 12 numbers of the A. panchax per 100 m shore line in the area. The observed lockdown induced environmental healing at the studied area could contribute to this and therefore a stringent environmental audit is suggested during post-COVID-19 periods to make the regenerated environmental status long lasting at several places of the planet.

scholarly journals Características de um Rio Cárstico na Bacia do São Francisco (Characteristics of a Cárstico River in the São Francisco Basin)

2017 ◽  
Vol 10 (5) ◽  
pp. 1576
Author(s):  
José Henrique Izidoro Apezteguia Martinez
Keyword(s):  
Water Quality ◽  
Dissolved Oxygen ◽  
River Basin ◽  
High Sensitivity ◽  
Minas Gerais ◽  
Annual Rainfall ◽  
Flow Temperature ◽  
Temperature Conductivity ◽  
Western State ◽  
The Mean

Este trabalho teve como objeto de estudo o Córrego do Barreado localizado na mesorregião do oeste do estado de Minas Gerais, que tem sua bacia contida na região da bacia do Alto São Francisco sobre relevo cárstico. A Bacia do São Francisco abastece 14,2 milhões de habitantes em 6 estados, sendo assim importante o conhecimento de suas características limnológicas. Para se avaliar as águas do Córrego do Barreado foi efetuado um monitoramento hidrológico mensal de um ano, entre outubro de 2014 e setembro de 2015, os parâmetros avaliados foram: precipitação, vazão, temperatura, condutividade, oxigênio dissolvido, pH, turbidez, nitrito, nitrato, ortofosfato e amônia. O acumulado de chuva anual entre outubro de 2014 e setembro de 2015 foi 1464,8 mm, as médias de cada parâmetro para todo o Córrego do Barreado foram respectivamente: oxigênio dissolvido (OD) – 2,83 mg/l, pH – 7,25, turbidez – 53,6, nitrito – 0,03 mg/l de NO2, nitrato – 0,14 mg/l de NO3, ortofosfato – 0,05 mg/l de P, amônia – 0,16 mg/l NH3. Conclui se que a combinação da impropriedade da qualidade das águas, ocupação do solo e alta sensibilidade dos aquíferos cársticos amplificam efeitos poluidores no Córrego do Barreado, que alteram suas características com efeito percebido principalmente nos valores de oxigênio dissolvido.Palavras-chave: água, relevo cárstico, monitoramento hidrológico, usos da água.A B S T R A C TThis study object was the Córrego do Barreado located in the mesoregion of the western state of Minas Gerais, which has its basin inserted in the region of the Upper São Francisco basin on karst relief. The São Francisco River Basin supplies 14.2 million inhabitants in 6 states, so it is important to know its limnological characteristics. The following parameters were evaluated: rainfall, flow, temperature, conductivity, dissolved oxygen, pH, turbidity, nitrite, precipitation, precipitation, nitrate, orthophosphate and ammonia. The annual rainfall accumulated between October 2014 and September 2015 was 1464.8 mm, the mean of each parameter for the entire Barreado Stream were: OD - 2.83 mg / l, pH - 7.25, turbidity - 53.6, nitrite – 0.03 mg/l de NO2, nitrate - 0.14 mg/l de NO3, orthophosphate - 0.05 mg/l de P, ammonia - 0.16 0,16 mg/l NH3. It is concluded that the combination of water quality improperness, soil occupation and high sensitivity of the karstic aquifers amplify polluting effects in the Barreado Stream, which alter their characteristics with a perceived effect mainly on the values of dissolved oxygen.Keywords: water, carstic relief, hidrologic monitoring, warer uses. 

scholarly journals Benthic macroinvertebrates as bioindicators of water quality in Billings Reservoir fishing sites (SP, Brazil)

2016 ◽  
Vol 28 (0) ◽  
Author(s):  
José Ricardo Baroldi Ciqueto Gargiulo ◽  
Cacilda Thais Janson Mercante ◽  
Ana Lucia Brandimarte ◽  
Luciana Carvalho Bezerra de Menezes
Keyword(s):  
Water Quality ◽  
Dissolved Oxygen ◽  
Environmental Conditions ◽  
Benthic Community ◽  
Diversity Index ◽  
Metropolitan Region ◽  
Total Density ◽  
Artisanal Fishing ◽  
Fishing Activity ◽  
Temperature Conductivity

Abastract: Aim The Billings Reservoir is the largest reservoir in the metropolitan region of São Paulo and has multiple uses, including artisanal fishing. Its surroundings present intense occupation, resulting in various environmental impacts. Although the water is degraded, affecting the composition and quality of the fish, this reservoir supports artisanal fishermen who survive through this activity. This study aimed to analyze the water quality in the main sites of artisanal fishing activity, with an emphasis on the benthic community as a bioindicator. Methods Three sampling sites were selected, in which water and zoobenthos samples were collected monthly from April 2012 to March 2013. Water analyses consisted of the determination of pH, temperature, conductivity, turbidity, total dissolved solids, dissolved oxygen, total nitrogen, total phosphorus, and trophic state as well as a principal components analysis. The zoobenthos analysis consisted of determining the relative abundance and total density of taxa, the Shannon-Weaver diversity index, taxa richness, uniformity, Simpson’s dominance index, and the benthic community index and conducting a canonical correspondence analysis. The non-parametric Kruskal-Wallis test followed by the Student-Newman-Keuls test were used to investigate the existence of significant differences in the abiotic and biotic variables among the sites. Results The studied sites showed a high degree of eutrophication, with nitrogen and phosphorus totals levels above the limits defined by current Brazilian legislation. Taquacetuba (P1) showed the best environmental conditions for the development of fishing activity, with the presence of sensitive organisms (Polymitarcyidae) and higher levels of dissolved oxygen. Alvarenga (P2) had the worst water quality, with a predominance of tolerant organisms (Oligochaeta) and lower levels of dissolved oxygen. Conclusion In conclusion, the benthic community in association with abiotic metrics proved to be a useful tool as a bioindicator of environmental conditions, indicating that fishing activity at Alvarenga is not recommended due to the degradation of water quality.

scholarly journals Impacts of Artisanal Gold Mining on Water Quality: A Case Study of Tangandougou Commune in Sikasso Region, Mali

2018 ◽  
pp. 621-629
Author(s):  
Mahamadou Moussa Keita ◽  
George Morara Ogendi ◽  
Owuor Owuor ◽  
Wycliff N Nyamao
Keyword(s):  
Heavy Metals ◽  
Water Quality ◽  
Human Health ◽  
Gold Mining ◽  
Environmental Concern ◽  
Anthropogenic Activity ◽  
Physical Parameters ◽  
Temperature Conductivity ◽  
Mining Areas ◽  
Artisanal Gold Mining

Introduction: Unsustainable natural resources utilization is on the increase in the developing countries thus the ability of many local communities to meet their basic needs including food, water and shelter is jeopardized. Uncontrolled gold-mining in Sikasso region is one such an anthropogenic activity that is of great environmental concern to the local and national governments of Mali owing to its potential impacts on water quality, human health and environment. This study was conceived to assess the impacts of artisanal gold mining on water quality in Tangandougou in Sikasso region of Mali.Materials and Methods: In this descriptive study, water samples were collected, processed and analyzed for heavy metals (Lead, Cadmium and Arsenic) according to APHA protocols. Measurements of physical parameters of water quality were done according to APHA protocols. Data were analyzed using both descriptive and inferential statistics.Results: There were no significant spatial differences in physical and chemical parameters (pH, Temperature, Conductivity, total dissolved solids and Salinity) of water quality amongst the sampling sites. However, the heavy metals concentrations in the sampled water exceeded WHO drinking water quality guidelines.Conclusion: It was concluded that the water of Sankarani River and its tributaries is contaminated and may cause adverse effects on human health due to biomagnification and the bioaccumulative nature of heavy metals. Therefore, the study recommends continuous monitoring of the water quality in all water sources adjacent to gold-mining areas to protect human and environmental health.

scholarly journals Diel patterns of temperature, conductivity and dissolved oxygen in an Amazon floodplain lake: description of a friagem phenomenon

2014 ◽  
Vol 26 (3) ◽  
pp. 318-331 ◽  
Author(s):  
Pedro Caraballo ◽  
Bruce Rider Forsberg ◽  
Fabiane Ferreira de Almeida ◽  
Rosseval Galdino Leite
Keyword(s):  
Dissolved Oxygen ◽  
Water Column ◽  
High Water ◽  
Floodplain Lake ◽  
Temperature Conductivity ◽  
Amazon Floodplain ◽  
Air Temperatures ◽  
Lake Bottom ◽  
Mixing Patterns ◽  
First Time

AIM: The aim of this work was to study the diel stratification parameters temperature, dissolved oxygen and conductivity, providing a more detailed description of a friagem event. METHODS: the mixing behavior of the limnetic water column in Lago Catalão, an Amazon floodplain lake flooded by two of the world’s largest rivers (Solimões and Negro), was studied through diel profiling of temperature, conductivity and dissolved oxygen, between 2006 and 2007. Measurements were made every four hours at 1m depth intervals to the lake bottom. RESULTS: The water column remained stratified during most of the year with the exception of one month with low water level, when nocturnal mixing occurred and one friagem event during high water (May 2007) when an isothermal temperature profile and an atypical orthograde oxygen profile were observed. CONCLUSIONS: The friagem event, a large drop in air temperatures due to the intrusion of a polar air mass in the Amazon, constitutes an important force in the dynamics of the water column, which produces a profound redistribution of dissolved gases and solutes in the system. This is the first time that the effects of the friagem on the mixing patterns in a lowland Amazon lake have been documented in detail. The decline in air temperature, observed during the friagem event destabilized the normally stratified water column, which can be associated with an environmental disturb.

scholarly journals Water Quality and Anthropogenic Pressures in a Changing Environment: The Arges River Basin, Romania

2022 ◽  
Author(s):  
Daniel Dunea
Keyword(s):  
Heavy Metals ◽  
Water Quality ◽  
Dissolved Oxygen ◽  
Socioeconomic Development ◽  
Oxygen Demand ◽  
Quality Parameters ◽  
Water Quality Parameters ◽  
Danube River ◽  
Anthropogenic Pressures ◽  
Management Plans

The objective of this work was to present several benchmarks regarding the water quality at hydrological basin level under increasing anthropogenic pressures. The first part briefly describes the sources of water pollution, the hydromorphological pressures, and the main water quality parameters widely used for the assessment. The second part presents as an example the dynamics of several water quality parameters recorded between 2007 and 2014 downstream of Argeș River, Romania, near the confluence with the Danube River. Argeș River supplies water for several important Romanian cities including Bucharest, and from here comes the rationale of the work, which envisages characterizing water quality status to substantiate proper water management. The following parameters were statistically analyzed: water temperature, suspended solids, pH, dissolved oxygen, biochemical oxygen demand, ammonium, nitrates, nitrites, and dissolved heavy metals. The factor analysis results showed that the first factor contains temperature and dissolved oxygen, the second has the heavy metals, the third groups have the ammonium and pH, the fourth contains the TSS and nitrites, while the fifth is formed by BOD5 and nitrates. Water quality plays a significant role in promoting socioeconomic development and maintaining viable ecosystems. The protection of water quality requires improved monitoring and reliable watershed management plans.

scholarly journals Wired Sensor Systems for Water Quality Monitoring

2019 ◽  
Vol 8 (4) ◽  
pp. 847-852
Keyword(s):  
Water Quality ◽  
Drinking Water ◽  
Dissolved Oxygen ◽  
Energy Saving ◽  
Water Quality Monitoring ◽  
Quality Monitoring ◽  
Temperature Conductivity ◽  
Quality Of Water ◽  
The World

Water is an essential need and elixir of life. People all the world are fighting for their drinking water in order to keep it clean. No matter in what form it is rivers, lakes etc people have taken extreme measures to keep their water drinkable and useable for both humans and animals. Water is a significant characteristic asset without which no life can be envisioned. In any case, individuals misuse this real asset and cause wastage of water. We provide energy saving solution for monitoring the water quality. The proposed idea will build an IOT based sensor which monitors the pH, temperature, conductivity, dissolved oxygen, turbidity, bacteria, etc. present in the water collected. The sensors collect data and send it through a network. Then server will upload the data to the cloud. The remote water station will read the collected data and determine the quality of water. Henceforth, this application can be used on bigger scales, saves time and man-power.

A New Life for the St. Croix River

1988 ◽  
Vol 23 (4) ◽  
pp. 568-577
Author(s):  
Harold S. Bailey
Keyword(s):  
Water Quality ◽  
Dissolved Oxygen ◽  
Discharge Rate ◽  
Paper Mill ◽  
Regulated River ◽  
Secondary Treatment ◽  
Pulp And Paper Mill ◽  
Oxygen Regime ◽  
Oxygen Concentrations

Abstract The water quality of the upper 110 kilometres of the St. Croix River is considered to be pristine. A major industrial discharge renders the lower 14 kilometres of the river a water quality limited segment. Prior to 1970 the Georgia-Pacific Pulp and Paper Mill at Woodland, Maine, discharged untreated effluent directly into the river causing dissolved oxygen concentrations to drop well below 5 mg/L, the objective chosen in the interest of restoring endemic fish populations. Since 1972, the Mill has installed primary and secondary treatment, regulated river discharge rate and effluent composition which has greatly improved the summer dissolved oxygen regime. By 1980, dissolved oxygen concentrations were generally above 5.0 mg/L and restocking the river with Atlantic Salmon (Salmo salar) was initiated.

Considering the impact of intermittent discharges when modelling overflows

1998 ◽  
Vol 38 (10) ◽  
pp. 23-30
Author(s):  
Sarah Jubb ◽  
Philip Hulme ◽  
Ian Guymer ◽  
John Martin
Keyword(s):  
Water Quality ◽  
Dissolved Oxygen ◽  
Preliminary Investigation ◽  
Oxygen Demand ◽  
Sediment Oxygen Demand ◽  
Combined Sewer Overflows ◽  
River Hydraulics ◽  
Combined Sewer ◽  
The Impact ◽  
Curve Equation

This paper describes a preliminary investigation that identified factors important in the prediction of river water quality, especially regarding dissolved oxygen (DO) concentration. Intermittent discharges from combined sewer overflows (CSOs) within the sewerage, and overflows at water reclamation works (WRW) cause dynamic conditions with respect to both river hydraulics and water quality. The impact of such discharges has been investigated under both wet and dry weather flow conditions. Data collected from the River Maun, UK, has shown that an immediate, transient oxygen demand exists downstream of an outfall during storm conditions. The presence of a delayed oxygen demand has also been identified. With regard to modelling, initial investigations used a simplified channel and the Streeter-Phelps (1925) dissolved oxygen sag curve equation. Later, a model taking into account hydrodynamic, transport and dispersion processes was used. This suggested that processes other than water phase degradation of organic matter significantly affect the dissolved oxygen concentration downstream of the location of an intermittent discharge. It is proposed that the dynamic rate of reaeration and the sediment oxygen demand should be the focus of further investigation.

A modeling approach to simulate impact of climate change in lake water quality: phytoplankton growth rate assessment

1998 ◽  
Vol 37 (2) ◽  
pp. 177-185 ◽  
Author(s):  
Hany Hassan ◽  
Keisuke Hanaki ◽  
Tomonori Matsuo
Keyword(s):  
Climate Change ◽  
Water Quality ◽  
Growth Rate ◽  
Dissolved Oxygen ◽  
Lake Water ◽  
Phytoplankton Growth ◽  
Quality Data ◽  
Model Parameters ◽  
Lake Water Quality ◽  
Phytoplankton Growth Rate

Global climate change induced by increased concentrations of greenhouse gases (especially CO2) is expected to include changes in precipitation, wind speed, incoming solar radiation, and air temperature. These major climate variables directly influence water quality in lakes by altering changes in flow and water temperature balance. High concentration of nutrient enrichment and expected variability of climate can lead to periodic phytoplankton blooms and an alteration of the neutral trophic balance. As a result, dissolved oxygen levels, with low concentrations, can fluctuate widely and algal productivity may reach critical levels. In this work, we will present: 1) recent results of GCMs climate scenarios downscaling project that was held at the University of Derby, UK.; 2) current/future comparative results of a new mathematical lake eutrophication model (LEM) in which output of phytoplankton growth rate and dissolved oxygen will be presented for Suwa lake in Japan as a case study. The model parameters were calibrated for the period of 1973–1983 and validated for the period of 1983–1993. Meterologic, hydrologic, and lake water quality data of 1990 were selected for the assessment analysis. Statistical relationships between seven daily meteorological time series and three airflow indices were used as a means for downscaling daily outputs of Hadley Centre Climate Model (HadCM2SUL) to the station sub-grid scale.

Pollution retention capabilities of roadside soils

1999 ◽  
Vol 39 (2) ◽  
pp. 201-208 ◽  
Author(s):  
C. Dierkes ◽  
W. F. Geiger
Keyword(s):  
Heavy Metals ◽  
Water Quality ◽  
Drinking Water ◽  
Groundwater Recharge ◽  
Drinking Water Quality ◽  
Traffic Density ◽  
Roadside Soils ◽  
Highway Runoff ◽  
Lead And Cadmium ◽  
Lead Zinc

Runoff from highways contains significant loads of heavy metals and hydrocarbons. According to German regulations, it should be infiltrated over embankments to support groundwater-recharge. To investigate the decontaminating effect of greened embankments, soil-monoliths from highways with high traffic densities were taken. Soils were analyzed to characterize the contamination in relation to distance and depth for lead, zinc, copper, cadmium, PAH and MOTH. Lysimeters were charged in the field and laboratory with highway runoff to study the effluents under defined conditions. Concentrations of pollutants in roadside soils depend on the age of embankments and traffic density. Highest concentrations were found in the upper 5 cm of the soil and within a distance of up to two metres from the street. Concentrations of most pollutants decreased rapidly with depth and distance. Lead and cadmium could not be detected in lysimeter effluent. Zinc and copper were found in concentrations that did not exceed drinking water quality limits.

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