Misha Roy | Vidyasagar University (original) (raw)
Papers by Misha Roy
Journal of Alternate Energy Sources & Technologies, 2022
Every life form on earth need water, which is one of the basic resources. India is a country of R... more Every life form on earth need water, which is one of the basic resources. India is a country of Rivers and some of the Rivers are considered sacred and are associated with religious importance. However, the rapid increase in population, urbanization, and increased anthropogenic invasions has resulted in the deterioration of the water quality. Rivers are always seen as the easiest sinks to dispose of all kinds of wastes; hence the majority of treated and untreated industrial, domestic and anthropogenic
wastes are disposed into these Rivers. The Rivers passing through the major urban cities, semi-urban towns, and villages consume all kinds of urban wastes, agricultural runoffs, religious offerings, and other various kinds of anthropogenic invasions. This exploitation of Rivers is evident in almost every River and its tributaries. The river water has become unfit for any human consumption and domestic usage, thus posing a possible threat of diseases outbreak due to the direct exposure of people and
other life forms to hazardous substances and heavy metals through contaminated river water, there is a danger of developing several fatal diseases. The objective of this study is to evaluate the pollution load and causes of water contamination in major Indian rivers and their potential risk to human health.
Rivers plays important role for the sustenance of life by providing drinking water source and als... more Rivers plays important role for the sustenance of life by providing drinking water source and also in the economic growth by serving for irrigation and industrial purposes. The Hooghly River is the tributaries of the river Ganga in West Bengal. The maximum populations of West Bengal are inhabited on the bank of Hooghly River; it also supports various industries and cultural heritage. The present work is conducted to evaluate the water quality of the Hooghly river and to find out the pollutant sources of the Hooghly River of West Bengal. The results reveal that the river is deteriorating rapidly due to the increased rate of pollution from different industrial, transportation, domestic and agricultural sources. In addition to this various religious activities like idol immersion and mass bathing also adds to the source of pollution. The low DO, high BOD, COD and higher values of turbidity is reported in the entire river stretch due to anthropogenic intervenes. Some studies also revealed fecal contamination and high risk of trace and heavy metal pollution. The management of the river needs proper planning along with the people's participation so as to conserve the river water quality and to save the aquatic biodiversity. Only a bridge between the optimum resource utilization, science, technology and culture would help to combat the gap between laws and regulations and their proper implementations.
Water pollution, mainly due to industrial and urban activities, is well known worldwide. The pres... more Water pollution, mainly due to industrial and urban activities, is well known worldwide. The present study was conducted in Babughat, Kolkata, on the river Hooghly, where both the idol immersion and ferry services run parallel, accumulating all-way pollution loads. Various physicochemical parameters were estimated to understand the coupled effects of ferry services and idol immersion. The DO values are found to be very low (9.1 to 5.5 mg/l). The microbial analysis revealed the presence of microbial contamination in the river water (coliform: 540,000 MPN and E. coli: 15000 MPN). The WQI (415.82) and CPI (1.3 mg/l) show that the water is polluted and unfit for drinking consumption. The Heavy Metal Index (HPI) and Eutrophication Index (EI) revealed the heavy metal pollution and eutrophic nature of the water. The results indicated that most of the physicochemical parameters from the Babughat were within or at the periphery in comparison with the permissible limit. However, the microbial load was found to be very high. The results did not show any significant heavy metal or trace metal pollution. The improved results could be attributed to the passive restoration of restricted anthropogenic influence since the study was conducted in 2021, after the 1st wave of COVID lockdown in the country.
![Research paper thumbnail of Review of: "[Commentary] India’s steps towards carbon dioxide monitoring in public assembly spaces for ventilation measurement for airborne infection control and other factors](https://attachments.academia-assets.com/97745119/thumbnails/1.jpg)
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Applied Ecology and Environmental Sciences, 2014
The water quality of Pauri District of Uttarakhand, India has been assessed during pre-and postmo... more The water quality of Pauri District of Uttarakhand, India has been assessed during pre-and postmonsoon seasons to express the suitability of water for drinking purposes. The values of turbidity and iron exceed the permissible limit prescribed by Indian Standards for drinking purpose. Some sites were also contaminated with large number of total and fecal coliform bacteria. Piper diagrams exhibit that all water samples fall in Ca-Mg-HCO 3 hydrochemical facies and show the nature of carbonate hardness during both seasons. Based on the seasonal variation, the concentrations of most of the parameters considerably decreased during post-monsoon season and show the dilution effect of rain water in monsoon season. Water quality index describes the suitability of all sources for drinking purpose with 'Good' and 'Excellent' water quality during pre-and post-monsoon seasons, respectively.
Sustainable development is the ability to make developments sustainable. The definition of sustai... more Sustainable development is the ability to make developments sustainable. The definition of sustainable development is to meet the needs of the present without compromising the ability of future generations to meet their own needs. The concept of sustainable development is based on three pillars; Social Sustainability which includes people and culture; Economic Sustainability; which includes technology and the financial sector and Environmental Sustainability which involves the earth and the ecosystem. The Millennium Development Goals (MDG) formed the baseline framework on which the Sustainable Development Goals (SDG), 2015 also known as the Global Goals, is formulated. It is an action plan to end poverty and protect the planet while maintaining sustainable practices by 2030. The present Anthropocene has led to technological innovation which resulted in unfavorable impacts on the environment. Many challenges presently affects society, the economy, and the environment such as unsustainable consumption and production practices, ecological refugees, loss of biodiversity, pollution, natural disasters, climate change, environmental degradation, and several others. The world has seen extreme impacts of non-sustainable developments visible in the form of new diseases, epidemics, pandemics, extreme natural disasters, and climate change. These situations have indicated we need more rational and efficient sustainable management measures. With the half advent of the SDG; it has been clear that it will not be possible to achieve the goals at such a pace. The two primary factors that have been identified as major attributes of the failure are the Covid-19 pandemic and Russia's invasion of Ukraine. The pandemic has shown us the lacunas of the health system and the need for more advanced medical research and innovations while the Ukraine crisis has disrupted the global supply chain of food grains. Several approaches for sustainable development of our earth are already in place and have not achieved much success. Failures largely arise from implementations and; a lack of proper follow-up to evaluate progress and possible implementation measures. Sustainable development is achieved through a balance between economic, social, and environmental pillars. In the process of achieving its goals, each pillar of sustainability should maintain balance with each other. Negligence in any of them will result in complete imbalances in the system. Social and economic developments should be kept in balance with the environment. Otherwise, the complete and interdependent system will come to a fall. From the standpoint of 2022, the major environmental problems are global warming from fossil fuel consumption, food and water insecurity, biodiversity loss; plastic pollution; deforestation, and pollution in every segment of the environment. Sustainable development is the key to overall prosperity; the world is increasingly recognizing that environmental problems have a significant impact on the economies of the entire world. Keeping in mind the major constraints of the present century the outlook is to create a safe and sustainable environment for all living organisms. Therefore there is a growing need to find innovative approaches that can address sustainability while also opening growth opportunities. Now it's time for governments, and civil society to adopt innovative measures to mitigate and reduce these threats to focus on the adverse effect of globalization on the environment, and the need for sustainable development suggesting necessary and immediate measures to achieve sustainable economic growth.
Water science, 2021
Anthropogenic activities affect the rivers and the entire basin in different dimensions. All the ... more Anthropogenic activities affect the rivers and the entire basin in different dimensions. All the river basins including Ganga and Damodar are polluted from unplanned anthropogenic activities. This study is an attempt to access the quality of Shilabati River by computing water quality and pollution index using eleven parameters pH, COD, BOD, DO, TDS, Total Hardness, Total Alkalinity, Phosphate, Chloride, Nitrate, and Turbidity measured at eighteen different sites. The BOD and TC counts are found to be 2.45 mg/l and 9334 MPN/100 ml; which reveal that the river water falls under the moderately polluted category of Central Pollution Control Board. The high phosphate concentration suggests a heavy load of anthropogenic and industrial wastes and contributes to the rise in COD and BOD. The high phosphate concentrations also account for the eutrophic water. The physicochemical parameters fall mostly under the E category of Central Pollution Control Board. The Water Quality Index, Comprehensive Pollution Index, and Eutrophication index values show that the river water quality is poor and seriously polluted indicating that the water is not suitable for drinking, domestic purpose, and also for healthy survival of aquatic life and needs urgent management.
The Riverine Pollution-a Critical Review to Study the Water Quality and Pollution Load of Some Major Rivers of India, 2022
Every life form on earth need water, which is one of the basic resources. India is a country of R... more Every life form on earth need water, which is one of the basic resources. India is a country of Rivers and some of the Rivers are considered sacred and are associated with religious importance. However, the rapid increase in population, urbanization, and increased anthropogenic invasions has resulted in the deterioration of the water quality. Rivers are always seen as the easiest sinks to dispose of all kinds of wastes; hence the majority of treated and untreated industrial, domestic and anthropogenic wastes are disposed into these Rivers. The Rivers passing through the major urban cities, semi-urban towns, and villages consume all kinds of urban wastes, agricultural runoffs, religious offerings, and other various kinds of anthropogenic invasions. This exploitation of Rivers is evident in almost every River and its tributaries. The river water has become unfit for any human consumption and domestic usage, thus posing a possible threat of diseases outbreak due to the direct exposure of people and other life forms to hazardous substances and heavy metals through contaminated river water, there is a danger of developing several fatal diseases. The objective of this study is to evaluate the pollution load and causes of water contamination in major Indian rivers and their potential risk to human health.
Research & Reviews: Journal of Ecology, Apr 14, 2021
The massive increase in the human population, rapid industrialization, and growth in technology h... more The massive increase in the human population, rapid industrialization, and growth in technology has made our life comfortable and luxurious. However, it has come with the price tag of extreme exploitation of our planet earth. Our species have pushed the planet earth against its carrying capacity, damaging the earth’s own restoration capacity to filter the harmful pollutants. One of the outbreaks of this is air pollution. Chronic exposure to air pollutants weakens our lungs gradually making them vulnerable to various diseases and viruses such as SARS, MERS, and now the SARS-CoV-2. In this study, concentrations of six criteria pollutants, PM10, PM2.5, CO, NOx, ozone, andSO2 from 2018 to 2020 in 18 cities covering different regions of India were analyzed with a focus on the lockdown period. The result shows a sharp reduction in all the criteria pollutants with the enforcement of lockdown measures. In the national capital Delhi alone, the rapid decrease in particulate matter (108 µg/m3), NOx (31 µg/m3), and NH3 was observed with an increase in ozone concentration. The AQI has also improved from severe to moderate and good. This study proves the vision that by simple and strict implementation of regulatory measures, the earth can be allowed to be reshaped by passive restoration.
This investigation is carried out to determine the effect of low dose beta rays on the growth par... more This investigation is carried out to determine the effect of low dose beta rays on the growth parameters of Phaseolus vulgaris. The seeds of four different varieties of Phaseolus vulgaris were treated with beta rays from Sr-90 source emitting beta rays at the rate of 7.4835 mrad/hr. The local variety 3 is predicted to be more radiostimulative and local variety 2 more radiosensitive. In general lower doses stimulated the growth by significantly affecting the growth parameters whereas the higher ones caused radiation injury.
Medicon, 2022
Humanity is facing some major global challenges that are of immediate concern. Two of them are Pa... more Humanity is facing some major global challenges that are of immediate concern. Two of them are Pandemic and Deforestation. The connection between deforestation and a pandemic sounds strange or a bit far-fetched but unfortunately, these are linked together, in a very complex way. Deforestation refers to the decrease in forest areas across the world for other uses such as agricultural croplands, urbanization, mining activities, monoculture, etc. Pandemics are outbreaks of infectious diseases that can cause morbidity and mortality over a wide geographic area and cause significant economic, social, and political disruptions [1]. Urban ecology is study of the
Noise Pollution has become a serious health issue nowadays and emerging as a serious pollutant. T... more Noise Pollution has become a serious health issue nowadays and emerging as a serious pollutant. This study is carried out in three semiurban towns to evaluate the impact of noise pollution in these areas. A total of 69 locations are selected in Asansol, Bankura, and Midnapore town including the Silent, Residential, Commercial, and Industrial zone. Since the noise level varies with atmospheric conditions, hence the study is divided into premonsoon, monsoon, and post-monsoon seasons. L1, L5, L10, L50, L90, L95, L99, Equivalent sound pressure level (Leq), Noise climate (NC), Noise pollution level (Lnp), and Noise traffic Index (TNI) were computed for evaluating the intensity of noise pollution. The result reveals that the equivalent sound pressure level (Leq) is much higher than the standards in all locations of the silent zones. Noise pollution level (Lnp) and Noise traffic Index (TNI) are also computed high in commercial and heavy traffic zones. The Noise climate (NC) value shows not much variation in noise intensity with pre-post and monsoon climates. This is a pioneer study on noise quality evaluation in these locations. This study will further help in preparing future management plans to combat noise pollution in these areas.
Study of cosmic ray became a subject of study with the invention of neutron monitor by Simpson. B... more Study of cosmic ray became a subject of study with the invention of neutron monitor by Simpson. But recording of cosmic ray counts was started regularly from International Geophysical Year at different locations having different climatic zones over the globe. Here statistical analysis is performed to investigate the degree of response of different monitors towards cosmic ray counts. No significant difference is observed in statistical analysis if cosmic ray counts are normalized with respect to their mean counts in respective solar cycles. Correlation between cosmic ray counts of any two stations is found ranges from 0.88 to 0.99.
Pesticides helps in reducing the crop loss and results in better yield. However their unbridled u... more Pesticides helps in reducing the crop loss and results in better yield. However their unbridled use in agricultural sector, poses serious environmental problems. It is also intimately associated with both direct and indirect health hazards of agricultural workers. This study is aimed to determine the extent of pesticide use and to find out the associated health hazards among the sprayers, who are exposed directly. Several signs and symptoms of diseases and disorders were seen among the sprayers. The sprayers were found to be associated with higher relative risk compared to non-sprayers (RR = ≥ 1.5). Lack of adoption of protective measures was also noticed among the farmers.
River Ganga is considered sacred for providing life sustenance to the people of India. Anthropoge... more River Ganga is considered sacred for providing life sustenance to the people of India. Anthropogenic activities, however, have generated huge transformations in the river ecosystem during the past few decades. Advancement of technology in the form of a rise in the number of industries and the subsequent discharge of untreated and semi treated wastes into the river has raised serious concern about the safe use of river water for drinking and other purposes. The river water pollution due to industrial wastes is one of the major concerns in most of the metropolitan cities nowadays. These wastes discharged from diverse industries entering the water system lead to changes in the physicochemical and biological properties of riverine ecology and may further lead to bioaccumulation and biomagnification in the bodies of aquatic organisms and hence can enter the food web. The exposure to such water bodies can result in diverse health disorders in the living organisms and can affect the aquati...
The river Ganga is one of the most important and sacred rivers of India. During the last few deca... more The river Ganga is one of the most important and sacred rivers of India. During the last few decades, massive pollution has affected its water quality. The present study reports the impact of anthropological pollutant load on river Ganga at Dakshineswar, W.B, India. Surface water samples for a two-year study (2017-19) were collected from DakshineswarGhat of the river Ganga during pre-post and monsoon seasons. The water samples were collected both during low and high tide and analyzed for different chemical and physical parameters viz.; temperature, pH, Dissolved Oxygen (DO), Biological Oxygen Demand (BOD), Total Dissolved Solids (TDS), Electric Conductivity (EC). The mean values of these parameters were used to assess the suitability of river water by comparing it with the World Health Organization (WHO). Variation of pollutant load is observed and the value diverges during low and high tide. During the complete study, the value of pH is found to be normal the total ranges of value ...
Cosmic ray causes hazards to microelectronic circuits. Presence of charged particles in the atmos... more Cosmic ray causes hazards to microelectronic circuits. Presence of charged particles in the atmosphere was first noticed by Coloumb in 1785. But cosmic ray was discovered by Victor Hess in 1912. However new era of particle physics was started with the invention of neutron monitor in 1948 by John A. Simpson. New information regarding the energy spectrum, anisotropy, latitudinal, longitudinal and daily variation of cosmic ray has added the scientific yield one by one from the analysis of the data of different monitors over the globe. This paper is a brief account of the striking events of cosmic ray which may be the background of future researchers.
Modulation of Cosmic Ray Intensity (CRI) depends to some extent on solar activity parameters e.g.... more Modulation of Cosmic Ray Intensity (CRI) depends to some extent on solar activity parameters e.g. planetary index, sunspot number, solar radio flux. Variation of CRI during descending and ascending phases of solar cycles 21 to 24 are analyzed to observe the intercorrelation of different parameters with CRI. For long term modulation of CRI, It is observed that both SRF and SSN may be the good indices.
Journal of Alternate Energy Sources & Technologies, 2022
Every life form on earth need water, which is one of the basic resources. India is a country of R... more Every life form on earth need water, which is one of the basic resources. India is a country of Rivers and some of the Rivers are considered sacred and are associated with religious importance. However, the rapid increase in population, urbanization, and increased anthropogenic invasions has resulted in the deterioration of the water quality. Rivers are always seen as the easiest sinks to dispose of all kinds of wastes; hence the majority of treated and untreated industrial, domestic and anthropogenic
wastes are disposed into these Rivers. The Rivers passing through the major urban cities, semi-urban towns, and villages consume all kinds of urban wastes, agricultural runoffs, religious offerings, and other various kinds of anthropogenic invasions. This exploitation of Rivers is evident in almost every River and its tributaries. The river water has become unfit for any human consumption and domestic usage, thus posing a possible threat of diseases outbreak due to the direct exposure of people and
other life forms to hazardous substances and heavy metals through contaminated river water, there is a danger of developing several fatal diseases. The objective of this study is to evaluate the pollution load and causes of water contamination in major Indian rivers and their potential risk to human health.
Rivers plays important role for the sustenance of life by providing drinking water source and als... more Rivers plays important role for the sustenance of life by providing drinking water source and also in the economic growth by serving for irrigation and industrial purposes. The Hooghly River is the tributaries of the river Ganga in West Bengal. The maximum populations of West Bengal are inhabited on the bank of Hooghly River; it also supports various industries and cultural heritage. The present work is conducted to evaluate the water quality of the Hooghly river and to find out the pollutant sources of the Hooghly River of West Bengal. The results reveal that the river is deteriorating rapidly due to the increased rate of pollution from different industrial, transportation, domestic and agricultural sources. In addition to this various religious activities like idol immersion and mass bathing also adds to the source of pollution. The low DO, high BOD, COD and higher values of turbidity is reported in the entire river stretch due to anthropogenic intervenes. Some studies also revealed fecal contamination and high risk of trace and heavy metal pollution. The management of the river needs proper planning along with the people's participation so as to conserve the river water quality and to save the aquatic biodiversity. Only a bridge between the optimum resource utilization, science, technology and culture would help to combat the gap between laws and regulations and their proper implementations.
Water pollution, mainly due to industrial and urban activities, is well known worldwide. The pres... more Water pollution, mainly due to industrial and urban activities, is well known worldwide. The present study was conducted in Babughat, Kolkata, on the river Hooghly, where both the idol immersion and ferry services run parallel, accumulating all-way pollution loads. Various physicochemical parameters were estimated to understand the coupled effects of ferry services and idol immersion. The DO values are found to be very low (9.1 to 5.5 mg/l). The microbial analysis revealed the presence of microbial contamination in the river water (coliform: 540,000 MPN and E. coli: 15000 MPN). The WQI (415.82) and CPI (1.3 mg/l) show that the water is polluted and unfit for drinking consumption. The Heavy Metal Index (HPI) and Eutrophication Index (EI) revealed the heavy metal pollution and eutrophic nature of the water. The results indicated that most of the physicochemical parameters from the Babughat were within or at the periphery in comparison with the permissible limit. However, the microbial load was found to be very high. The results did not show any significant heavy metal or trace metal pollution. The improved results could be attributed to the passive restoration of restricted anthropogenic influence since the study was conducted in 2021, after the 1st wave of COVID lockdown in the country.
Applied Ecology and Environmental Sciences, 2014
The water quality of Pauri District of Uttarakhand, India has been assessed during pre-and postmo... more The water quality of Pauri District of Uttarakhand, India has been assessed during pre-and postmonsoon seasons to express the suitability of water for drinking purposes. The values of turbidity and iron exceed the permissible limit prescribed by Indian Standards for drinking purpose. Some sites were also contaminated with large number of total and fecal coliform bacteria. Piper diagrams exhibit that all water samples fall in Ca-Mg-HCO 3 hydrochemical facies and show the nature of carbonate hardness during both seasons. Based on the seasonal variation, the concentrations of most of the parameters considerably decreased during post-monsoon season and show the dilution effect of rain water in monsoon season. Water quality index describes the suitability of all sources for drinking purpose with 'Good' and 'Excellent' water quality during pre-and post-monsoon seasons, respectively.
Sustainable development is the ability to make developments sustainable. The definition of sustai... more Sustainable development is the ability to make developments sustainable. The definition of sustainable development is to meet the needs of the present without compromising the ability of future generations to meet their own needs. The concept of sustainable development is based on three pillars; Social Sustainability which includes people and culture; Economic Sustainability; which includes technology and the financial sector and Environmental Sustainability which involves the earth and the ecosystem. The Millennium Development Goals (MDG) formed the baseline framework on which the Sustainable Development Goals (SDG), 2015 also known as the Global Goals, is formulated. It is an action plan to end poverty and protect the planet while maintaining sustainable practices by 2030. The present Anthropocene has led to technological innovation which resulted in unfavorable impacts on the environment. Many challenges presently affects society, the economy, and the environment such as unsustainable consumption and production practices, ecological refugees, loss of biodiversity, pollution, natural disasters, climate change, environmental degradation, and several others. The world has seen extreme impacts of non-sustainable developments visible in the form of new diseases, epidemics, pandemics, extreme natural disasters, and climate change. These situations have indicated we need more rational and efficient sustainable management measures. With the half advent of the SDG; it has been clear that it will not be possible to achieve the goals at such a pace. The two primary factors that have been identified as major attributes of the failure are the Covid-19 pandemic and Russia's invasion of Ukraine. The pandemic has shown us the lacunas of the health system and the need for more advanced medical research and innovations while the Ukraine crisis has disrupted the global supply chain of food grains. Several approaches for sustainable development of our earth are already in place and have not achieved much success. Failures largely arise from implementations and; a lack of proper follow-up to evaluate progress and possible implementation measures. Sustainable development is achieved through a balance between economic, social, and environmental pillars. In the process of achieving its goals, each pillar of sustainability should maintain balance with each other. Negligence in any of them will result in complete imbalances in the system. Social and economic developments should be kept in balance with the environment. Otherwise, the complete and interdependent system will come to a fall. From the standpoint of 2022, the major environmental problems are global warming from fossil fuel consumption, food and water insecurity, biodiversity loss; plastic pollution; deforestation, and pollution in every segment of the environment. Sustainable development is the key to overall prosperity; the world is increasingly recognizing that environmental problems have a significant impact on the economies of the entire world. Keeping in mind the major constraints of the present century the outlook is to create a safe and sustainable environment for all living organisms. Therefore there is a growing need to find innovative approaches that can address sustainability while also opening growth opportunities. Now it's time for governments, and civil society to adopt innovative measures to mitigate and reduce these threats to focus on the adverse effect of globalization on the environment, and the need for sustainable development suggesting necessary and immediate measures to achieve sustainable economic growth.
Water science, 2021
Anthropogenic activities affect the rivers and the entire basin in different dimensions. All the ... more Anthropogenic activities affect the rivers and the entire basin in different dimensions. All the river basins including Ganga and Damodar are polluted from unplanned anthropogenic activities. This study is an attempt to access the quality of Shilabati River by computing water quality and pollution index using eleven parameters pH, COD, BOD, DO, TDS, Total Hardness, Total Alkalinity, Phosphate, Chloride, Nitrate, and Turbidity measured at eighteen different sites. The BOD and TC counts are found to be 2.45 mg/l and 9334 MPN/100 ml; which reveal that the river water falls under the moderately polluted category of Central Pollution Control Board. The high phosphate concentration suggests a heavy load of anthropogenic and industrial wastes and contributes to the rise in COD and BOD. The high phosphate concentrations also account for the eutrophic water. The physicochemical parameters fall mostly under the E category of Central Pollution Control Board. The Water Quality Index, Comprehensive Pollution Index, and Eutrophication index values show that the river water quality is poor and seriously polluted indicating that the water is not suitable for drinking, domestic purpose, and also for healthy survival of aquatic life and needs urgent management.
The Riverine Pollution-a Critical Review to Study the Water Quality and Pollution Load of Some Major Rivers of India, 2022
Every life form on earth need water, which is one of the basic resources. India is a country of R... more Every life form on earth need water, which is one of the basic resources. India is a country of Rivers and some of the Rivers are considered sacred and are associated with religious importance. However, the rapid increase in population, urbanization, and increased anthropogenic invasions has resulted in the deterioration of the water quality. Rivers are always seen as the easiest sinks to dispose of all kinds of wastes; hence the majority of treated and untreated industrial, domestic and anthropogenic wastes are disposed into these Rivers. The Rivers passing through the major urban cities, semi-urban towns, and villages consume all kinds of urban wastes, agricultural runoffs, religious offerings, and other various kinds of anthropogenic invasions. This exploitation of Rivers is evident in almost every River and its tributaries. The river water has become unfit for any human consumption and domestic usage, thus posing a possible threat of diseases outbreak due to the direct exposure of people and other life forms to hazardous substances and heavy metals through contaminated river water, there is a danger of developing several fatal diseases. The objective of this study is to evaluate the pollution load and causes of water contamination in major Indian rivers and their potential risk to human health.
Research & Reviews: Journal of Ecology, Apr 14, 2021
The massive increase in the human population, rapid industrialization, and growth in technology h... more The massive increase in the human population, rapid industrialization, and growth in technology has made our life comfortable and luxurious. However, it has come with the price tag of extreme exploitation of our planet earth. Our species have pushed the planet earth against its carrying capacity, damaging the earth’s own restoration capacity to filter the harmful pollutants. One of the outbreaks of this is air pollution. Chronic exposure to air pollutants weakens our lungs gradually making them vulnerable to various diseases and viruses such as SARS, MERS, and now the SARS-CoV-2. In this study, concentrations of six criteria pollutants, PM10, PM2.5, CO, NOx, ozone, andSO2 from 2018 to 2020 in 18 cities covering different regions of India were analyzed with a focus on the lockdown period. The result shows a sharp reduction in all the criteria pollutants with the enforcement of lockdown measures. In the national capital Delhi alone, the rapid decrease in particulate matter (108 µg/m3), NOx (31 µg/m3), and NH3 was observed with an increase in ozone concentration. The AQI has also improved from severe to moderate and good. This study proves the vision that by simple and strict implementation of regulatory measures, the earth can be allowed to be reshaped by passive restoration.
This investigation is carried out to determine the effect of low dose beta rays on the growth par... more This investigation is carried out to determine the effect of low dose beta rays on the growth parameters of Phaseolus vulgaris. The seeds of four different varieties of Phaseolus vulgaris were treated with beta rays from Sr-90 source emitting beta rays at the rate of 7.4835 mrad/hr. The local variety 3 is predicted to be more radiostimulative and local variety 2 more radiosensitive. In general lower doses stimulated the growth by significantly affecting the growth parameters whereas the higher ones caused radiation injury.
Medicon, 2022
Humanity is facing some major global challenges that are of immediate concern. Two of them are Pa... more Humanity is facing some major global challenges that are of immediate concern. Two of them are Pandemic and Deforestation. The connection between deforestation and a pandemic sounds strange or a bit far-fetched but unfortunately, these are linked together, in a very complex way. Deforestation refers to the decrease in forest areas across the world for other uses such as agricultural croplands, urbanization, mining activities, monoculture, etc. Pandemics are outbreaks of infectious diseases that can cause morbidity and mortality over a wide geographic area and cause significant economic, social, and political disruptions [1]. Urban ecology is study of the
Noise Pollution has become a serious health issue nowadays and emerging as a serious pollutant. T... more Noise Pollution has become a serious health issue nowadays and emerging as a serious pollutant. This study is carried out in three semiurban towns to evaluate the impact of noise pollution in these areas. A total of 69 locations are selected in Asansol, Bankura, and Midnapore town including the Silent, Residential, Commercial, and Industrial zone. Since the noise level varies with atmospheric conditions, hence the study is divided into premonsoon, monsoon, and post-monsoon seasons. L1, L5, L10, L50, L90, L95, L99, Equivalent sound pressure level (Leq), Noise climate (NC), Noise pollution level (Lnp), and Noise traffic Index (TNI) were computed for evaluating the intensity of noise pollution. The result reveals that the equivalent sound pressure level (Leq) is much higher than the standards in all locations of the silent zones. Noise pollution level (Lnp) and Noise traffic Index (TNI) are also computed high in commercial and heavy traffic zones. The Noise climate (NC) value shows not much variation in noise intensity with pre-post and monsoon climates. This is a pioneer study on noise quality evaluation in these locations. This study will further help in preparing future management plans to combat noise pollution in these areas.
Study of cosmic ray became a subject of study with the invention of neutron monitor by Simpson. B... more Study of cosmic ray became a subject of study with the invention of neutron monitor by Simpson. But recording of cosmic ray counts was started regularly from International Geophysical Year at different locations having different climatic zones over the globe. Here statistical analysis is performed to investigate the degree of response of different monitors towards cosmic ray counts. No significant difference is observed in statistical analysis if cosmic ray counts are normalized with respect to their mean counts in respective solar cycles. Correlation between cosmic ray counts of any two stations is found ranges from 0.88 to 0.99.
Pesticides helps in reducing the crop loss and results in better yield. However their unbridled u... more Pesticides helps in reducing the crop loss and results in better yield. However their unbridled use in agricultural sector, poses serious environmental problems. It is also intimately associated with both direct and indirect health hazards of agricultural workers. This study is aimed to determine the extent of pesticide use and to find out the associated health hazards among the sprayers, who are exposed directly. Several signs and symptoms of diseases and disorders were seen among the sprayers. The sprayers were found to be associated with higher relative risk compared to non-sprayers (RR = ≥ 1.5). Lack of adoption of protective measures was also noticed among the farmers.
River Ganga is considered sacred for providing life sustenance to the people of India. Anthropoge... more River Ganga is considered sacred for providing life sustenance to the people of India. Anthropogenic activities, however, have generated huge transformations in the river ecosystem during the past few decades. Advancement of technology in the form of a rise in the number of industries and the subsequent discharge of untreated and semi treated wastes into the river has raised serious concern about the safe use of river water for drinking and other purposes. The river water pollution due to industrial wastes is one of the major concerns in most of the metropolitan cities nowadays. These wastes discharged from diverse industries entering the water system lead to changes in the physicochemical and biological properties of riverine ecology and may further lead to bioaccumulation and biomagnification in the bodies of aquatic organisms and hence can enter the food web. The exposure to such water bodies can result in diverse health disorders in the living organisms and can affect the aquati...
The river Ganga is one of the most important and sacred rivers of India. During the last few deca... more The river Ganga is one of the most important and sacred rivers of India. During the last few decades, massive pollution has affected its water quality. The present study reports the impact of anthropological pollutant load on river Ganga at Dakshineswar, W.B, India. Surface water samples for a two-year study (2017-19) were collected from DakshineswarGhat of the river Ganga during pre-post and monsoon seasons. The water samples were collected both during low and high tide and analyzed for different chemical and physical parameters viz.; temperature, pH, Dissolved Oxygen (DO), Biological Oxygen Demand (BOD), Total Dissolved Solids (TDS), Electric Conductivity (EC). The mean values of these parameters were used to assess the suitability of river water by comparing it with the World Health Organization (WHO). Variation of pollutant load is observed and the value diverges during low and high tide. During the complete study, the value of pH is found to be normal the total ranges of value ...
Cosmic ray causes hazards to microelectronic circuits. Presence of charged particles in the atmos... more Cosmic ray causes hazards to microelectronic circuits. Presence of charged particles in the atmosphere was first noticed by Coloumb in 1785. But cosmic ray was discovered by Victor Hess in 1912. However new era of particle physics was started with the invention of neutron monitor in 1948 by John A. Simpson. New information regarding the energy spectrum, anisotropy, latitudinal, longitudinal and daily variation of cosmic ray has added the scientific yield one by one from the analysis of the data of different monitors over the globe. This paper is a brief account of the striking events of cosmic ray which may be the background of future researchers.
Modulation of Cosmic Ray Intensity (CRI) depends to some extent on solar activity parameters e.g.... more Modulation of Cosmic Ray Intensity (CRI) depends to some extent on solar activity parameters e.g. planetary index, sunspot number, solar radio flux. Variation of CRI during descending and ascending phases of solar cycles 21 to 24 are analyzed to observe the intercorrelation of different parameters with CRI. For long term modulation of CRI, It is observed that both SRF and SSN may be the good indices.