Hydrochemical Analysis of Six Sacred Lakes of Sikkim

2021 ◽  
pp. 51-64
Author(s):  
Roshni Chettri ◽  
Dipankar Tuladhar ◽  
Chandrashekhar Bhuiyan
Keyword(s):  
Hydrochemical Analysis

Hydrochemical analysis of groundwater quality in central Hodna Basin, Algeria: a case study

2021 ◽  
Vol 1 (1) ◽  
pp. 1
Author(s):  
Mahmoud Hasbaia ◽  
Salim Djerbouai ◽  
Hakim Djafer Khodja ◽  
Nour El Houda Belazreg ◽  
Ratiba Mitiche Kettab ◽  
...  
Keyword(s):  
Groundwater Quality ◽  
Hydrochemical Analysis

scholarly journals HYDROCHEMICAL ANALYSIS OF A BASIN UNDER ANTHROPOGENIC INFLUENCE AND EFFECTS IN MANAUS’ SHORELINE - CENTRAL AMAZONIA

2020 ◽  
Vol 21 (77) ◽  
pp. 209-219
Author(s):  
Bruno Del Rio Calvo ◽  
Tereza Cristina Souza de Oliveira
Keyword(s):  
Anthropogenic Influence ◽  
Icp Oes ◽  
Hydrochemical Analysis ◽  
Rio Negro ◽  
Central Amazonia

Estudo ambiental realizado na bacia do Educandos (Manaus-AM), que abrange grande quantidade de residências e o Pólo Industrial de Manaus (PIM), vem avaliar o impacto das atividades antrópicas nos igarapés dessa bacia e potenciais influências ao Rio Negro, na orla de Manaus. Foi determinado o pH, C.E., turbidez, temperatura, SST, ânions (HCO3-,NO3-, F-, Cl-, SO42- ) e metais (Ni2+, Pb2+, Cr3+, Cu2+, Fe2+,V+, Zn2+ e Al3+). Mensurou-se os ânions por CLAE, os metais por ICP-OES e demais parâmetros por métodos clássicos. Constatou-se alteração de todos os parâmetros nos igarapés pela atividade antropogênica. Observou-se que o igarapé do Quarenta não alterou significativamente os padrões de qualidade da água na orla do Rio Negro. Observou-se elevada degradação da foz dos igarapés do Cachoeirinha e Mestre Chico com os mais elevados níveis de Cl-, F-, SO42-, C.E., pH e HCO3-. Estes parâmetros foram mais altos que em décadas passadas, indicando um aumento de contaminação por esgotos. Locais ao lado do PIM apresentaram altos teores de Ni2+ e Al3+, decorrente da emissão industrial.  Os metais de Pb2+, Cr3+, Cu2+, V+ mantiveram-se adequados a legislação N° 357/2005 do CONAMA em todos os pontos de coleta, indicando possível redução da emissão de metais potencialmente tóxicos.

scholarly journals Hydromycoflora of thirty-one lakes in Ełk Lake District and adjacent waters with reference to the chemistry of the environment

2014 ◽  
Vol 30 (1) ◽  
pp. 49-63 ◽  
Author(s):  
Bazyli Czeczuga
Keyword(s):  
Water Bodies ◽  
Lake District ◽  
Hydrochemical Analysis ◽  
First Time ◽  
Elk Lake

The mycoflora of Lake Ełk and thirty-one adjacent lakes and six rivers was studied. Samples of water were collected in 1987-1991 for hydrochemical analysis and determination of fungi species. In total 123 species of fungi were found in these water bodies, including 9 species reported for the first time from Poland

scholarly journals Characterising thermal water circulation in fractured bedrock using a multidisciplinary approach: a case study of St. Gorman’s Well, Ireland

2021 ◽  
Author(s):  
Sarah Blake ◽  
Tiernan Henry ◽  
John Paul Moore ◽  
John Murray ◽  
Joan Campanyà ◽  
...  
Keyword(s):  
Multidisciplinary Approach ◽  
Variable Temperature ◽  
Time Lapse ◽  
Thermal Spring ◽  
Maximum Temperature ◽  
Thermal Waters ◽  
Circulation System ◽  
Hydrothermal Circulation ◽  
Hydrochemical Analysis ◽  
3D Audio

AbstractA hydrogeological conceptual model of the source, circulation pathways and temporal variation of a low-enthalpy thermal spring in a fractured limestone setting is derived from a multidisciplinary approach. St. Gorman’s Well is a thermal spring in east-central Ireland with a complex and variable temperature profile (maximum of 21.8 °C). Geophysical data from a three-dimensional(3D)audio-magnetotelluric(AMT) survey are combined with time-lapse hydrogeological data and information from a previously published hydrochemical analysis to investigate the operation of this intriguing hydrothermal system. Hydrochemical analysis and time-lapse measurements suggest that the thermal waters flow within the fractured limestones of the Carboniferous Dublin Basin at all times but display variability in discharge and temperature. The 3D electrical resistivity model of the subsurface revealed two prominent structures: (1) a NW-aligned faulted contact between two limestone lithologies; and (2) a dissolutionally enhanced, N-aligned, fault of probable Cenozoic age. The intersection of these two structures, which has allowed for karstification of the limestone bedrock, has created conduits facilitating the operation of relatively deep hydrothermal circulation (likely estimated depths between 240 and 1,000 m) within the limestone succession of the Dublin Basin. The results of this study support a hypothesis that the maximum temperature and simultaneous increased discharge observed at St. Gorman’s Well each winter is the result of rapid infiltration, heating and recirculation of meteoric waters within a structurally controlled hydrothermal circulation system.

scholarly journals The influence of the biotic and abiotic factors on the state of the parasitic fauna of the hydrobionts in natural waters of the Southern Ukraine

2019 ◽  
pp. 60-70
Author(s):  
S. Honcharov
Keyword(s):  
Natural Waters ◽  
Abiotic Factors ◽  
Esox Lucius ◽  
Total Hardness ◽  
Hydrochemical Analysis ◽  
Parasitic Fauna ◽  
Biotic And Abiotic Factors ◽  
Level Of Invasion ◽  
The Impact ◽  
Southern Ukraine

The article observes the results of the scientifi c researches conducted in 2018–2019. 198 samples of the Gobiidae fi shes (Neogobius fl uviatialis Pallas, 1814, Mesogobius batrachocephalus Pallas, 1814, Neogobius melanostomum Pallas, 1814,), as well as 78 samples of other predatory fi shes (Perca fl uviatilis Linnaeus, 1758, Sander lucioperca Linnaeus, 1758, Esox lucius Linnaeus) were subjected to the ihtyopathological analysis with such an aim. The samples were caught in the waters of the Dnipro-Buh estuary near the Dniprovske village and near the Agigol Cape in the Mykolayiv Region. The average index of the invasion extensiveness among the Gobiidae fi shes of the Dnipro-Buh estuary in June counted 26.6%, and the highest level of the invasion intensiveness counted – 94 – 157 metacecaria – the cryptocotyle agents. Following the fi sh-kill in July 2018 it was possible to notice the 114.2 % – decrease of the Gobiidae fi shes population. The level; of the cryptocotyle invasion of these fi shes reached its peak in August, counting 60.3%, and the amplitude of the invasion intensiveness waved between 102 and 211 samples. In June the level of invasion of the predatory fi shes (perch, pike, sander) with eustrongylides counted 63.8%, and the invasion intensiveness reached the highest point among Esox lucius Linnaeus – from 1 to 8 nematoda larvae. The 47.8 % – decrease of the amount of the predatory fi shes caught in the waters of the DniproBuh estuary was noticed after the fi sh-kill. In August the eustrongylide invasion extensiveness counted 84.3%, and the index of the invasion intensiveness was 2–12 parasites. The impact of the fi sh-eating birds on forming the natural focuses of the cryptocotyle and eustrongylide invasions among the main commercial fi shes of the Dnipro-Buh estuary was determined. Hydrochemical analysis of the waters of the Dnipro-Buh estuary was held separately to determine the reason of the mass fi sh-kill in July 2018. The hydrochemical analysis of the waters of the DniproBuh estuary in July showed contradictions of such points as pH, oxygen, free ammonia, and total hardness to the actual normative legal documents. The inappropriate hydrochemical condition was the reason of the fi sh-kill in the aquatic biological recourses. The infl uence of biotic and abiotic factors on the condition of the parasitic fauna in the researched fi shes of the natural waters of the Southern Ukraine was determined. Key words: gobiidae fi shes, predatory fi shes, abiotioc and biotic factors, cryptocotilosis, eustrongylidosis.

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