- Sarguja University, Dept. of Env. Sc. Ambikapur (C.G.) 497001 (INDIA)
- 07774-221819
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The present study was undertaken with the databank of dissolved Pb and pH of the aquatic system in the East Kolkata Wetlands, an internationally unique Ramsar Site of Eastern India during a period of twenty years (2000-2019). Our study... more
The present study was undertaken with the databank of dissolved Pb and pH of the aquatic system in the East Kolkata Wetlands, an internationally unique Ramsar Site of Eastern India during a period of twenty years (2000-2019). Our study site is receiving huge amounts of domestic and industrial wastewater from surrounding areas of highly populated metropolitan city of Kolkata. The data on pH exhibits a decreasing trend with the passage of time, which may be attributed to the phenomenon of acidification in which CO2 dissolves with the water and shifts the pH to a lower value. This may result in the dissolution of accumulated Pb in the sediment and transfer the same to the overlying aquatic phase. The increasing trend of dissolved Pb confirms the hypothesis. The significant negative correlation between pH and dissolved Pb (r= -0.7763; p≤0.01) supports the view of the regulatory effect of pH on the dissolved Pb level in the aquatic systems of East Kolkata Wetland.
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Climate Change is a global phenomenon and is one of the burning glitches and emerging environmental issues in present time. The impact of climate change is manifold and having indelible impact on all aspects of earth life and... more
Climate Change is a global phenomenon and is one of the burning glitches and emerging environmental issues in present time. The impact of climate change is manifold and having indelible impact on all aspects of earth life and biodiversity. Fisheries and Aquaculture have been considered as an important branch of Indian subcontinent economy associated with agriculture and allied sectors. Millions of stakeholders are dependent directly or indirectly on aquaculture and fisheriessector for their livelihood belonging mostly to the bottom of economic pyramid with lower incomes, unorganized jobs, greater socio-economic vulnerability. Often they are under privileged andmostly affected by the vagaries of climate change. Erratic temperature and rainfall patterns, storm-water surges, salinity invasion, increasing sea-surface temperature, oceanic acidification, salinization of freshwater resources associated with tropical cyclones such as Aila, Fani, Bulbul to the very recent Amphan and Nisarga ...
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1 Department of Environmental Science, Sarguja University, Ambikapur, Chhattisgarh, India 2 School of Sciences, Netaji Subhas Open University, Kalyani Campus, Kalyani, Nadia, West Bengal, India 3 Department of Oceanography, Techno India... more
1 Department of Environmental Science, Sarguja University, Ambikapur, Chhattisgarh, India 2 School of Sciences, Netaji Subhas Open University, Kalyani Campus, Kalyani, Nadia, West Bengal, India 3 Department of Oceanography, Techno India University, Salt Lake, Kolkata, West Bengal 4 Department of Marine Science, Calcutta University, Ballygunge Science College, Kolkata, West Bengal Email joystu.dutta@gmail.com
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1. On the 12th of March 2020 the Government of Ireland announced the following actions to delay the spread of COVID-19 in Ireland. These measures took effect on 13/03/2020 and will remain in place until 29/03/2020, at which time a... more
1. On the 12th of March 2020 the Government of Ireland announced the following actions to delay the spread of COVID-19 in Ireland. These measures took effect on 13/03/2020 and will remain in place until 29/03/2020, at which time a decision will be made regarding whether they should be continued. All schools, colleges and childcare facilities will close. Where possible, teaching will be done online or remotely. Cultural institutions will close. Indoor mass gatherings of more than 100 people and outdoor mass gatherings of more than 500 people should be cancelled. Arrangements are being made to ensure that everyone entering Ireland through our ports and airports is fully informed and self-isolates if they develop symptoms. People should continue to go to work if they can but where possible should work from home. In order to reduce unnecessary face to face interaction in the workplace, break times and working times should be staggered and meetings done remotely or by phone. ...
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Municipal solid waste management is a humongous problem for majority of developing countries across the world. Spontaneous commercial, residential and infrastructural development due to population explosion has caused negative impacts on... more
Municipal solid waste management is a humongous problem for majority of developing countries across the world. Spontaneous commercial, residential and infrastructural development due to population explosion has caused negative impacts on the inhabiting environment. Unplanned townscapes and lack of proper scientific and technical expertise in MSW management has complicated the problems further. In the current paper, we tried to investigate the root cause of such common urban problems considering Silchar Mini City as one of the fastest growing population hubs in south Assam. The population of the city is nearly two lakhs according to the census of 2011, thus generating around 85 MT (metric ton) of Municipal waste every day which consists of house hold waste (50%), market waste (39%), street waste (6%), and other commercial wastes including the E-waste in total (5%). The per capita rate of waste generation is 240-250 gram per day on average. The current study assesses the present trend...
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Impact of Climate Change on fisheries and Aquacullture.pdf
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Unscientific management of municipal solid waste is one of the direct sources of contamination in developing countries, such as India. The present investigation carried out during Oct-Dec 2019 attempts to assess the parameters, such as... more
Unscientific management of municipal solid waste is one of the direct sources of contamination in developing countries, such as India. The present investigation carried out during Oct-Dec 2019 attempts to assess the parameters, such as quality of groundwater and soil along three depths (0-5, 5-15 and 15-30 cm), in proximity to a dumping site in Silchar, a rapidly evolving city of NorthEast India. Standard protocols of soil and water quality assessments were carried out. The pH values of the surface soils were found to be slightly acidic. Decrease in acidity with increasing depth was observed in the study site. The relative abundance of the analyzed elements at all soil depths was Zn > Fe > Ni > Cu > Cr. Weak correlation between the concentration of Cu, Fe and Zn, and the bulk density of the soil highlighted the micronutrient status of the soil. The impact of the nearby dumpsite on trace element contamination is indicated by the 'extremely contaminated' status of ...
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The use of Plastic has become a very essential material in our day to day life and plays a vital role in human comfort. But due to the non-biodegradable property of plastic, it has become a major pollution concern throughout the world. In... more
The use of Plastic has become a very essential material in our day to day life and plays a vital role in human comfort. But due to the non-biodegradable property of plastic, it has become a major pollution concern throughout the world. In this paper the problems associated with plastic material, their impact on environment and the alternatives of plastic derivatives were discussed. This paper will be helpful to spread awareness about plastic pollution
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Plastic is a necessary evil of current times. It is ubiquitous in modern time’s cape, from polythene bags for daily shopping to PVC pipes, from kitchenware to pet bottles; plastic and its associated derivatives lands up everywhere.... more
Plastic is a necessary evil of current times. It is ubiquitous in modern time’s cape, from polythene bags for daily shopping to PVC pipes, from kitchenware to pet bottles; plastic and its associated derivatives lands up everywhere. However, poor management of plastic waste is burying us in every corner of our blue planet right from the shores of Arabian Sea to the tropical paradise of Hawaii and the Pacific Islands, from mighty Himalayas to the Great Barrier Reef along the coasts of Australia. Our collective awareness for various negative impacts of plastic pollution is increasing in comparison to the bygone decade and slowly there is a mindset transition regarding rampant plastic usage.
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More than three-fourths of the rural population depend on agriculture, which is largely rainfed. Farmers often face challenges like irregular monsoon, non-availability of quality inputs; lack of resources and poor market linkages. These... more
More than three-fourths of the rural population depend on agriculture, which is largely rainfed. Farmers often face challenges like irregular monsoon, non-availability of quality inputs; lack of resources and poor market linkages. These issues, if systematically addressed, could help farmers improve their livelihoods, breaking the cycle of poverty.
Jhilmil Jheel Conservation reserve is a saucer shaped wetland situated on the left bank of river Ganga covering an area of 3783.50 hectares. This wetland is located between Haridwar-Najimabad highway and left bank of river Ganges in... more
Jhilmil Jheel Conservation reserve is a saucer shaped wetland situated on the left bank of river Ganga covering an area of 3783.50 hectares. This wetland is located between Haridwar-Najimabad highway and left bank of river Ganges in Uttarakhand. The terai landscape includes short and tall grasslands, tropical mixed moist deciduous forests, and secondary scrub. The wetland is well known for conservation of Barasingha. The habitat is located at the junction of Bhabar and Terai formations representing a very unique and species rich eco-system. The present study revealed rich faunal and floral diversity including 18 species of larger mammals with 160 species of resident and migratory birds. There are about 23 tree species, 9 shrub species, 4 grass species, 10 herb species and 5 species of climbers. Based on the study of butterfly diversity in the said reserve and adjacent area, the list includes 134 species belonging to 81 genera and 8 families. Four types of naturalised plantations of ...
This paper contains detailed strategy for estimation of net biomass of vegetation in natural plantations of Sal, Teak & Pine. Conventional destructive sampling was carried out for the under storey vegetation while for the measurement of... more
This paper contains detailed strategy for estimation of net biomass of vegetation in natural plantations of Sal, Teak & Pine. Conventional destructive sampling was carried out for the under storey vegetation while for the measurement of Stand biomass was taken by estimation of height and GBH of the trees. Equations for aboveground standing biomass was developed for three single species and for three set of natural plantations in New forest, FRI Campus, Dehradun, Uttarakhand, India. The net biomass calculated for Pine, Sal and Teak plantations are respectively 429.912 t/ ha, 917.697 t/ha and 1.549 t/ha respectively. The net under storey biomass under Pine, Teak and Sal plantations are respectively 0.001t/ha,0.042 t/ha and 0.012 t/ha respectively. The Carbon sequestration value for model Teak plantation is estimated to about 0.7745 t/ha (ideally taken as 50% of the net biomass of the plantation).The net biomass values of Sal and Teak are exceptionally high indicating very good health ...
The carbon budget of planet earth is regulated by the soil compartment in all types of ecosystems. We conducted a first order analysis of soc in November 2017 both in the mangrove dominated Indian Sundarbans and the highly urbanized city... more
The carbon budget of planet earth is regulated by the soil compartment in all types of ecosystems. We conducted a first order analysis of soc in November 2017 both in the mangrove dominated Indian Sundarbans and the highly urbanized city of Kolkata with the aim of identifying the natural and anthropogenic contributions of organic carbon in soil. We also attempted to analyze the spatial variation of soc between these two significantly different ecosystems. We observed a comparatively higher mean value of soc in Kolkata (2.06%) than in the Sundarbans (1.25%). The significant spatial variation in soc between Kolkata and the Sundarbans (p < 0.05) may be attributed to anthropogenic stress, which is of greater magnitude in the city of Kolkata. The significant spatial variation in soc between north and south Kolkata (p < 0.05) is due to the efficiency of the drainage system in the north and the magnitude of city limit expansion in the south. In the Sundarban deltaic complex, a natura...
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Waste is a major problem for the countries and cities of developing country like India. This present study is carried out to understand the present scenario of waste management status of three major towns of Assam state namely Jorhat,... more
Waste is a major problem for the countries and cities of developing country like India. This present study is carried
out to understand the present scenario of waste management status of three major towns of Assam state namely
Jorhat, Tezpur and Dibrugarh. A comparative analysis is carried out on the basis of municipal solid waste generation
in these three prominent municipalities of Upper Assam. During the present study it is estimated that Tezpur town
produces around 28 MT of waste, Jorhat Town produces 35 MT of waste and Dibrugarh Town produces 75 MT of
waste respectively. All the three Municipalities are facing problem for disposal of waste as the open dumping ground
is affecting the people and environment around the site. Dibrugarh town waste management is more critical compare
to others as because of the open air dumping system since 25 years as well as proximity to river Brahmaputra dike
area which is unsuitable and unscientific for dumping process. The intermixing of waste with riparian ecosystem
leads to further complications and far-reaching consequences. There is a good scope of Biogas production and
vermicompost generation from waste dumping areas because in average almost 90% waste is bio-degradable.
There is immediate need of advanced technical measures to handle the waste management in these towns further.
out to understand the present scenario of waste management status of three major towns of Assam state namely
Jorhat, Tezpur and Dibrugarh. A comparative analysis is carried out on the basis of municipal solid waste generation
in these three prominent municipalities of Upper Assam. During the present study it is estimated that Tezpur town
produces around 28 MT of waste, Jorhat Town produces 35 MT of waste and Dibrugarh Town produces 75 MT of
waste respectively. All the three Municipalities are facing problem for disposal of waste as the open dumping ground
is affecting the people and environment around the site. Dibrugarh town waste management is more critical compare
to others as because of the open air dumping system since 25 years as well as proximity to river Brahmaputra dike
area which is unsuitable and unscientific for dumping process. The intermixing of waste with riparian ecosystem
leads to further complications and far-reaching consequences. There is a good scope of Biogas production and
vermicompost generation from waste dumping areas because in average almost 90% waste is bio-degradable.
There is immediate need of advanced technical measures to handle the waste management in these towns further.
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More than three-fourths of the rural population depend on agriculture, which is largely rainfed. Farmers often face challenges like irregular monsoon, non-availability of quality inputs; lack of resources and poor market linkages. These... more
More than three-fourths of the rural population depend on
agriculture, which is largely rainfed. Farmers often face
challenges like irregular monsoon, non-availability of quality
inputs; lack of resources and poor market linkages. These
issues, if systematically addressed, could help farmers
improve their livelihoods, breaking the cycle of poverty.
agriculture, which is largely rainfed. Farmers often face
challenges like irregular monsoon, non-availability of quality
inputs; lack of resources and poor market linkages. These
issues, if systematically addressed, could help farmers
improve their livelihoods, breaking the cycle of poverty.
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ABSTRACT Blackspotted Croaker (Protonibea diacanthus) is one of the most commercially important croakers which migrate along West Bengal coast during winter season. This paper deals with the importance of the species along with its market... more
ABSTRACT Blackspotted Croaker (Protonibea diacanthus) is one of the most commercially important croakers which migrate along West Bengal coast during winter season. This paper deals with the importance of the species along with its market value and the cause of its popularity in West Bengal. This species is gaining prime importance among the fishermen due to the high market price of it’s swim bladder. The dried swim bladders are sold in local markets for Rs. 40,000- 50,000 per kg. There is a risk factor involved as the fishermen do not get the catch at a time and moreover, they often lose common pelagic fishes due to usage of larger mesh sized net. In spite of this risk, a shift from pelagic to demersal fishing across northern Bay of Bengal marks an important emerging trend of winter fishing in this area. Keywords: Bay of Bengal, Blackspotted Croaker, Demersal Fishery, Protonibea diacanthus, Sundarban.
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Until yesterday, it was an uphill task for Ambikapur Municipal Corporation to cope with the multiplying problems of waste management with the rising population across the city. The problem of solid as well as liquid waste disposal has... more
Until yesterday, it was an uphill task for Ambikapur Municipal Corporation to cope with the multiplying problems of waste management with the rising population across the city. The problem of solid as well as liquid waste disposal has assumed humongous proportions. The challenging initiative of Swachh Ambikapur Mission was launched on June 2015 realizing the gravitas of the urban waste management. The successful implementation of the mission lies in conversion of garbage into valuable resources. It is an achievement for the Ambikapur city with 28 wards completely free of dustbins and by January 26, 2016; all 48 wards got 100 percent to zero waste. Thanks to
the visionary leadership of District Collector Surguja Mrs. Ritu Sain, IAS and Ambikapur Municipal Commissioner Mr. L. K. Singraul supported by Chhattisgarh State Urban Development Agency; and the Government of Chhattisgarh; Ambikapur is on the right track of transformation today.
the visionary leadership of District Collector Surguja Mrs. Ritu Sain, IAS and Ambikapur Municipal Commissioner Mr. L. K. Singraul supported by Chhattisgarh State Urban Development Agency; and the Government of Chhattisgarh; Ambikapur is on the right track of transformation today.