scholarly journals An appraisal of geohydrological status and assessment of groundwater quality of Indpur Block, Bankura District, West Bengal, India

2021 ◽  
Vol 11 (3) ◽  
Author(s):  
Moumita Palmajumder ◽  
Susanta Chaudhuri ◽  
Vikas K. Das ◽  
Sisir K. Nag
Keyword(s):  
West Bengal ◽  
Chemical Characterization ◽  
The State ◽  
Subsurface Water ◽  
Current Status ◽  
Total Hardness ◽  
Estimation Of Parameters ◽  
Drainage Pattern ◽  
Magnesium Adsorption Ratio ◽  
Bankura District

AbstractThe present work aimed to evaluate the overall hydro-geological status of Indpur block, Bankura district, West Bengal, India. Despite of having adequate annual precipitation, south-western districts of the state of West Bengal, India, are considered to be a significantly water-stressed area of the state. This is because of unfavorable geological setting near to subsurface occurrence of impervious lithology and inundated nature of surface drainage pattern. The study was carried out both in pre- and post-monsoon seasons of 2019 to obtain an updated current status on concentration and spatiotemporal fluctuations of controlling ions of the subsurface water. Estimation of major physicochemical parameters and specific qualitative chemical characterization of groundwater were rated through field and laboratory studies. Water samples were collected from twenty-two equidistantly scattered tube wells in the block. Seasonal variations of water table elevation heads and subsurface shift of predominant recharge zones of the block were also demarked. Drinking, domestic and irrigation suitability of the block water were measured by the estimation of parameters such as Sodium Adsorption Ratio (SAR), Magnesium Adsorption Ratio (MAR), Soluble Sodium Percentage (SSP), Residual Sodium Carbonate (RSC), Permeability Index (PI), Total Hardness (TH) and Kelly’s ratio (KR) and piper trilinear plots. Sustainable non-availability of groundwater seems to be the major problem of the studied area, which intern resulted in overexploitation, mostly for cultivation practices causing considerable depletion of its suitability as drinking and irrigation. Further, results show that suitability of the water both for domestic and irrigation of the studied area may be termed as ‘good’ to ‘moderate’ with a few exceptions on a local scale. Judging by every parameter, it can be stated that groundwater of Indpur block is not much suitable for drinking purposes.

Hydrogeochemistry and Overall Appraisal of Groundwater Status of Taldangra Block, Bankura District, West Bengal, India

2020 ◽  
Vol 17 (4) ◽  
pp. 37-46
Author(s):  
Moumita Palmajumder ◽  
Susanta Chaudhuri ◽  
Vikas K. Das ◽  
Sisir K. Nag
Keyword(s):  
Soil Cover ◽  
West Bengal ◽  
Sodium Adsorption Ratio ◽  
The State ◽  
Permeability Index ◽  
Drainage Pattern ◽  
Piper Trilinear Diagram ◽  
Block Level ◽  
Bankura District

South-western districts of the state of West Bengal, India are considered to be a significantly water-stressed area of the state because of unfavourable geological setting, subsurface lithology, soil cover and surface drainage pattern. Updated geohydrological data on micro-scale i.e., at subdivision or block-level are scanty for Bankura District, West Bengal. For the present study, a geo-hydrological survey was conducted in Taldangra block of Bankura District, West Bengal, during post and pre-monsoon session of 2017–18, to obtain an intense status on present groundwater quality of this water-stressed block. Variation of concentration of major affecting ions and spatial-temporal seasonal variations of water table elevation head and subsurface shift of predominant recharge and discharge zones of the block were demarked explaining the possible reasons. Suitability status of the groundwater for drinking, domestic and irrigation usages was also rated by the estimation of sodium adsorption ratio (SAR), soluble sodium percentage (SSP), permeability index (PI), Piper trilinear diagram.

scholarly journals Seasonal Variation of Zooplankton Density and Physicochemical Parameters of A Perennial Freshwater Body, Samudrabundh of Joypur, Bankura, West Bengal, India

2021 ◽  
Vol 17 (4) ◽  
pp. 853-858
Author(s):  
Tapas Kumar Dutta ◽  
Rajendra Prasad Mondal
Keyword(s):  
Water Body ◽  
West Bengal ◽  
Quality Parameters ◽  
Total Hardness ◽  
Water Type ◽  
Physico Chemical ◽  
Zooplankton Density ◽  
Aquatic Food ◽  
Bankura District ◽  
Carbon Dioxide Co2

Water is the most essential and vital component required for the survival of all organisms in this earth. The physico-chemical and biological characteristics of a water body determine its efficacy for the production of plankton especially the zooplankton. Zooplankton are the most important primary consumer of aquatic food chain which in turn influence the productivity of finfishes in an aquatic body .The present study is primarily based on assessment of seasonal density and diversity as well as the physico-chemical condition of Samudrabundh, of Joypur block of Bankura district, West Bengal. Such type of assessment on this water body has not been done before this.. The study was carried during March.2019 to February, 2020. The water quality parameters which were used for study were temperature, PH, Dissolved Oxygen (DO), Free carbon dioxide (CO2),Chloride, salinity, alkalinity and total hardness. A total of 26 taxa of zooplankton were recorded. Out of which 8 sp ecies comprises of Rotifera, 05 species of Copepoda, 10 species of Cladocera and 03 species of Ostracoda. The total zooplankton density ranges from 756 (Ind/L) to 957 (Ind/L) which is quiet lower than the desired value required for good fish culture. The study concludes that the water body is of soft water type and medium productive in nature.

scholarly journals On the distribution of Vagrans egista (Cramer, 1780) in West Bengal, India

2021 ◽  
Vol 47 (3) ◽  
pp. 513-519
Author(s):  
Subhajit Roy ◽  
Aniruddha Singhamahapatra ◽  
Suvankar Dutta
Keyword(s):  
Invasive Plant ◽  
West Bengal ◽  
The State ◽  
Distribution Range ◽  
Plateau Region ◽  
Mikania Micrantha ◽  
Tiger Reserve ◽  
Bankura District ◽  
First Time

Vagrans egista (Cramer, 1780) is reported for the first time from southern part of West Bengal, India. The Raygar forest of Bankura district in the plateau region is the second locality for the reported species in West Bengal, which extends the distribution range (aerial distance: 525 km) of the species from its known locality, Buxa Tiger Reserve of Alipurduar district in the state. This paper also reports occurrence of Rapala pheretima and Gerosis bhagava in Bankura district for the first time. Importance of an invasive plant, Mikania micrantha has also been discussed as a nectaring plant of butterflies.

The History Of Modern Vaccination In Cooch Behar State In The Nineteenth Century

2019 ◽  
Vol 5 (4) ◽  
pp. 180-190
Author(s):  
Rajkumar Bind
Keyword(s):  
Nineteenth Century ◽  
Vaccination Programme ◽  
West Bengal ◽  
The State ◽  
The People ◽  
Small Pox ◽  
Preventive Method ◽  
History Of

This paper examines the development of modern vaccination programme of Cooch Behar state, a district of West Bengal of India during the nineteenth century. The study has critically analysed the modern vaccination system, which was the only preventive method against various diseases like small pox, cholera but due to neglect, superstation and religious obstacles the people of Cooch Behar state were not interested about modern vaccination. It also examines the sex wise and castes wise vaccinators of the state during the study period. The study will help us to growing conciseness about modern vaccination among the peoples of Cooch Behar district.   

Antibacterial and Anti-Biofilm Biosynthesised Silver and Gold Nanoparticles for Medical Applications: Mechanism of Action, Toxicity and Current Status

2020 ◽  
Vol 17 (2) ◽  
pp. 88-100 ◽  
Author(s):  
Sundos Suleman Ismail Abdalla ◽  
Haliza Katas ◽  
Fazren Azmi ◽  
Mohd Fauzi Mh Busra
Keyword(s):  
Gold Nanoparticles ◽  
Synthesis Method ◽  
Chemical Characterization ◽  
Current Status ◽  
Silver And Gold Nanoparticles ◽  
Physical And Chemical Characterization ◽  
Biosynthesized Agnps ◽  
Physical And Chemical ◽  
Insight Into ◽  
Bio Synthesis

Fast progress in nanoscience and nanotechnology has contributed to the way in which people diagnose, combat, and overcome various diseases differently from the conventional methods. Metal nanoparticles, mainly silver and gold nanoparticles (AgNPs and AuNPs, respectively), are currently developed for many applications in the medical and pharmaceutical area including as antibacterial, antibiofilm as well as anti-leshmanial agents, drug delivery systems, diagnostics tools, as well as being included in personal care products and cosmetics. In this review, the preparation of AgNPs and AuNPs using different methods is discussed, particularly the green or bio- synthesis method as well as common methods used for their physical and chemical characterization. In addition, the mechanisms of the antimicrobial and anti-biofilm activity of AgNPs and AuNPs are discussed, along with the toxicity of both nanoparticles. The review will provide insight into the potential of biosynthesized AgNPs and AuNPs as antimicrobial nanomaterial agents for future use.

scholarly journals "Communist" dispossession meets "reactionary" resistance

Focaal ◽  
2009 ◽  
Vol 2009 (54) ◽  
pp. 89-96 ◽  
Author(s):  
Projit Bihari Mukharji
Keyword(s):  
Communist Party ◽  
West Bengal ◽  
Present Situation ◽  
The State ◽  
Political Subjectivity ◽  
Self Reflection ◽  
Term Change ◽  
Communist Government ◽  
Set Up

The reflections in this article were instigated by the repeated and brutal clashes since 2007 between peasants and the state government’s militias—both official and unofficial—over the issue of industrialization. A communist government engaging peasants violently in order to acquire and transfer their lands to big business houses to set up capitalist enterprises seemed dramatically ironic. De- spite the presence of many immediate causes for the conflict, subtle long-term change to the nature of communist politics in the state was also responsible for the present situation. This article identifies two trends that, though significant, are by themselves not enough to explain what is happening in West Bengal today. First, the growth of a culture of governance where the Communist Party actively seeks to manage rather than politicize social conflicts; second, the recasting of radical political subjectivity as a matter of identity rather than an instigation for critical self-reflection and self-transformation.

Tribal Land Rights: A Situational Analysis in the Context of West Bengal

2020 ◽  
Vol 9 (1) ◽  
pp. 193-209
Author(s):  
Sudipta Biswas ◽  
Sukumar Pal
Keyword(s):  
Land Reform ◽  
West Bengal ◽  
Land Rights ◽  
The State ◽  
Situational Analysis ◽  
Tribal Population ◽  
Political Commitment ◽  
Large Section ◽  
Tribal People ◽  
Tribal Land

Tribal communities in India are most deprived. Socio-economically, they are poor and marginalised. The root cause of socio-economic marginalisation can be attributed to alienation of tribal people from their land, territory and resources. The overall situation of the tribal population of West Bengal is not better than the national average, even more deprived than the tribal population of other states. Despite progressive land reform laws and political commitment to implement such laws, issues of tribal land rights have not been addressed adequately. There is no such exclusive study to understand the situation of tribal land rights in the state of West Bengal. This article analyses the status of tribal land rights in the state context and makes some suggestions for improving the situation. It is found that despite distribution of land titles, a large section of the tribal population remains landless. A sizable portion has not received received record-of-rights. Claims of many tribal people for forest patta remain pending or stand rejected. Tribal land alienation continues to be a matter of concern. The state has not taken any concrete steps for the restoration of unlawfully alienated tribal lands. A large section of the tribal sharecroppers in the state remain unrecorded.

scholarly journals Assessment and distribution of water quality of Pandoh river basin (PRB), Himachal Pradesh, North India

2021 ◽  
Vol 11 (8) ◽  
Author(s):  
C. Prakasam ◽  
R. Saravanan ◽  
M. K. Sharma ◽  
Varinder S. Kanwar
Keyword(s):  
Water Quality ◽  
Surface Water ◽  
River Basin ◽  
Geographical Information ◽  
North India ◽  
Total Hardness ◽  
Drainage Pattern ◽  
Study Region ◽  
Northern India

AbstractAs the surface water in northern India is the main water resource for regional economic and also supply for drinking and irrigation purposes. However, deficiency of water quality leads to serious water pollution in the Pandoh river basin (PRB). Therefore, the main objective of the present study is to evaluate the quality of surface water. With this objective, surface water samples were collected from the PRB of northern India, and analyzed for pH, EC, turbidity, alkalinity, total dissolved solids, and total hardness. Moreover, geographical information system (GIS) tools were used to prepare the geology, drainage pattern, and location maps of the study region. Surface water quality observed from the PRB has an alkaline nature with a moderately hard type. Further studies are encouraged to better understand the water quality in northern India.

Current Questions and New Directions in Archaeological Obsidian Studies

2016 ◽  
Author(s):  
Carolyn Dillian
Keyword(s):  
Chemical Characterization ◽  
Current Status ◽  
Formation Processes ◽  
X Ray ◽  
Dating Methods ◽  
New Directions ◽  
Trade And Exchange

This article discusses the current status of archaeological obsidian studies, including techniques used in characterization and sourcing studies, obsidian hydration, and regional syntheses. It begins with an overview of obsidian and the unique formation processes that create it before turning to a discussion of the significance of characterization and sourcing techniques for understanding prehistoric obsidian trade and exchange. It then considers the problematic aspects of the term “sourcing,” despite its ubiquitous use in archaeology and archaeometry, along with the use of X-ray fluorescence in the chemical characterization of obsidian. It also explores obsidian hydration dating methods and equations, factors that can affect the date assignments for hydration specimens, and the various uses of obsidian in prehistoric times. Finally, it addresses some important questions relating to obsidian research and suggests new directions in the field.

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