Subhas Chandra Santra

Subhas Chandra Santra
University of Kalyani · Department of Environmental Science

M.Sc., Ph.D., PRS (SC)

About

186
Publications
62,176
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3,768
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Additional affiliations
March 1998 - present
University of Kalyani
Position
  • Professor (Full)
March 1985 - present
University of Kalyani
Position
  • Professor (Full)

Publications

Publications (186)
Article
Full-text available
The industrial outburst, widespread uses of pesticides and fertilizers, heavy sewage effluents, domestic trash, and pharmaceutical waste through surface runoff have resulted in large scale increase in metal concentrations in surrounding water bodies. In eco-sensitive areas the scenario is becoming one of the major environmental concerns. The presen...
Article
Full-text available
Metal contamination from upstream river water is a threat to coastal and estuarine ecosystem. The present study was undertaken to unveil sedimentation processes and patterns of heavy metal deposition along the salinity gradient of a tropical estuary and its mangrove ecosystem. Sediment columns from three representative sites of differential salinit...
Article
Full-text available
Arsenic contamination in the rice agro-ecosystem, its consequent spread into the food chain, and its adverse impact are a global concern. However, assessment of the impact of arsenic contamination on the qualitative aspect of rice in the post-harvest phase has not been attempted. We laid down this particular experiment with the aim to assess how ar...
Article
Arsenic (As) contamination and its adverse consequences on rice agroecosystem are well known. Rice has the credit to feed more than 50% of the world population but concurrently, rice accumulates a substantial amount of As, thereby compromising food security. The gravity of the situation lays in the fact that the population in theAs uncontaminated a...
Conference Paper
The arsenic contamination in groundwater-soil-food chain in many parts of the world is in alarming condition causing severe human health effects. To investigate the phytoremediation ability through hyperaccumulation, five common available pteridophytic plant species (Christella dentata, Adiantum caudatum, Pteris sp.; Marsilea quadrifolia and Azolla...
Article
Arsenic (carcinogenic) is a global health concern due to its presence in groundwater and subsequent accumulation in cultivated-rice via irrigation. The present work focused on the evaluation of arsenic concentration in groundwater, different cultivated-rice varieties (studied together for the first-time) and related health-risks. Arsenic in groundw...
Article
Full-text available
Role of gamma irradiation in modulating 1.1 times more cadmium (Cd) tolerance in Penicillium cyclopium Westling has been detailed in this paper. Augmentation in metal tolerance was recognized by escalation in response to Cadmium and Cd removal efficacies than that of their un-irradiated group. FTIR spectra and electron microscopic photographs furth...
Chapter
Full-text available
Rice (Oryza sativa) has been regarded as one of the oldest food crops, feeding more than half (55% approximately) of the entire world population. Seventy-five percent of the daily calorific demand is fulfilled by polished white rice in Asian population. Besides being easily digestible, rice also has a considerable amount of protein and a significan...
Chapter
Salinity stress is a constraint to the world crop production. The crop plants of Fabaceae family are a major source of dietary proteins for the population of third world countries. But salinity stress poses a serious threat in their yield. Several studies have been performed to elucidate the legume salinity stress responses as well as strategies to...
Article
The present study assessed the co-occurrence of fluoride and arsenic in groundwater of Dharmanagar region (Tripura, India). Co-occurrence of the two toxicants was observed in 59% of the analyzed groundwater samples (n = 71), out of which concentrations of both the toxicants exceeded the World Health Organization drinking water standards in 30% samp...
Article
Full-text available
Spatial interpolation technique is useful for spatial mapping with sparse data procured from vantage in situ sampling sources. Through spatial interpolation, wall-to-wall mapping of the arsenic concentration in groundwater was accomplished for the whole of the study area by using known concentration value at nearby locations (aquifers) under homoge...
Chapter
We laid down this experiment with two objectives. First to evaluate the germination and early seedling growth behaviour of rice seeds primed with water (hydroprimed or HP) and primed with zinc (Zn) using zinc sulphate under arsenic free (As-) and As spiked (As+) condition. Whereas, our second intention was to asses whether seed priming with Zn in r...
Article
Purpose: Present study deals with the role of gamma irradiation in modulating lead (Pb) tolerance of Aspergillus niger Van Tieghem. and Penicillium cyclopium Westling. Materials and Methods: After being exposed to gamma absorbed doses those fungal strains were subjected to heavy metal uptake efficacies and anti-oxidative study. Fourier Transform In...
Chapter
Full-text available
Composting is an environmental-friendly, wealth creating and sustainable method rather than directly dumped into earth. It is useful to convert organic waste to useful products. Organic manure nourishes the soil fertility, increases the soil aeration and also minimizes environmental pollution. Now, it has been realized throughout the world that the...
Article
Full-text available
We laid down this investigation to explore the promotive and antagonistic aspect of selenium (Se) when supplemented through seed priming technology in rice before sowing into arsenic (As) free and As spiked soil. Findings suggest that As stress inhibits germination (35.38%), seedling growth (38.19%), chlorophyll content by 42.31%, and reduced trans...
Article
Abstract The current investigation was laid down to investigate the consequences of cultivating (till maturity) selenium (Se) primed seedlings of two contrasting rice varieties in arsenic (As) free and As spiked pot soil. At maturity, Se primed seedlings (both tested varieties) cultivated alike the controls (in As free condition) were found to poss...
Presentation
Full-text available
Biodata
Article
Abstract The south-east Asian countries are facing a serious threat of arsenic (As) toxicity due to extensive use of As contaminated groundwater for rice cultivation. This experiment was configured to assess the consequences of rice seed priming with selenium (Se) and cultivation in As free and As contaminated soil. The experiment was arranged in a...
Article
The south-east Asian countries are facing a serious threat of arsenic (As) toxicity due to extensive use of As contaminated groundwater for rice cultivation. This experiment was configured to assess the consequences of rice seed priming with selenium (Se) and cultivation in As free and As contaminated soil. The experiment was arranged in a factoria...
Chapter
Consequences of paddy cultivation in arsenic (As)-contaminated environment on crop growth, yield, and transmission to food chain through consumption of rice are known to all. Furthermore, the adverse consequences of As toxicity continues upon consumption of As rich rice by human, irrespective of gender and socioeconomic perspective, have been docum...
Conference Paper
Full-text available
Industrial safety, Public health and Environment-A prospective Educational Profile
Article
Full-text available
A study was conducted in fluoride-affected Bankura and Purulia districts of West Bengal to assess the potential health risk from fluoride exposure among children, teenagers, and adults due to consumption of rice, pulses, and vegetables in addition to drinking water and incidental ingestion of soil by children. Higher mean fluoride contents (13-63 m...
Article
Interactive aspect of among selenium (Se) and As (As) to mitigate As induced phytotoxicity in rice during germination and seedling growth has been based on mostly to petriplates and hydroponic mode of experiments. In this investigation we explore the consequences of sowing Se primed rice seeds in As spiked soil. Unprimed, hydroprimed and Se primed...
Article
Full-text available
Mitigating greenhouse gas (GHG: Methane and nitrous oxide) emission from the rice cropland vis-à-vis increasing rice yield is one of the important challenges to the food security and climate change research. N-fertilizer input to the crop land is the key to rice productivity and GHG emission from soil. The sustainability of different types and appl...
Article
Full-text available
Pesticides are the group of chemicals that used for protection of agricultural and food products by controlling plant and animal pests. The pesticides have significant contribution to increase the yields of agricultural products and regulating vector borne diseases. The unscientific use of pesticide may accumulate in substantial quantity in crops,...
Article
Due to extensive use of arsenic (As) contaminated ground water in rice cultivation As toxicity has become a growing concern to rice growers of south east Asian countries. The presence of As in soil and irrigation water causes impaired crop growth and development. Selenium (Se) at lower concentration (1.0 mg L⁻¹) is reported to be stimulatory on cro...
Article
Full-text available
Freshwaters are not only used locally in many developing countries but they are often over exploited for domestic purposes, agriculture and disposal of industrial wastes which result in an overload of excess nutrients, harmful chemicals and heavy metals. Plant species together with sediments and water samples collected from eleven aquatic water bod...
Article
Full-text available
Physicochemical properties and cooking characteristics of milled rice varies widely among different rice verities. In the present study two commonly cultivated rice varieties(Swarna and Minikit) grown in arsenic contaminated districts of West Bengal were examined to asses physicochemical properties and cooking characteristics along with this associ...
Article
Methods: Ownership of the intellectual property rights is the key factors in determining the success of any technological invention, which was introduced in the market. It provides the means for technological progress to continue of the industry of the country. The new plans, animal varieties, new methods of treatments, new crops producing food ar...
Article
Full-text available
The present study emphasizes the potential of gamma radiation in enhancing zinc tolerance of Aspergillus terreus. Gamma-exposed A. terreus could tolerate 1.13 times more Zn, reflecting higher growth (in terms of CFU) under Zn stress and enhanced Zn removal efficacies than their unirradiated counterparts. Radiation-induced upregulation of antioxidat...
Article
Full-text available
The spatial variation of metal concentrations in the sediments is associated with the level of pollution along river stretches. Thus, the chemical speciation of seven trace heavy metals (Co, Cd, Cr, Cu, Ni, Pb and Zn) in Hooghly River sediments from four sampling locations was determined using the modified BCR sequential extraction procedure. The s...
Article
Full-text available
http://www.indianjournals.com/ijor.aspx?target=ijor:jag&volume=18&issue=4&article=012 The present investigation deals with the diurnal studies in order to understand the impact of cyclic tidal insurgence, if any, as well as to delineate the factors controlling the water quality in Sundarban Mangroves Ecosystem, India. Water samples were collected o...
Article
Heavy metal pollution is an alarming problem for the ecosystem. Zinc (Zn) is one of the most common heavy metal contaminant in the environment. In recent years different, abatement strategies are being implemented to control metal pollutants, amongst these, bioremediation has gained substantial focus. This paper detailed the Zn uptake and removal e...
Article
Full-text available
AbstractAir pollution has become a major environmental risk as far as public health is concerned. It has been proposed that reduction in levels of air pollution may result in lessening of the global burden of disease. Monitoring and management of air pollution is being carried out since long. However, the causes of air pollution and effects of air...
Chapter
Full-text available
It is predicted that around 100 million people living in the Ganga-Meghna- Brahmaputra plain are at the risk of serious arsenic toxicity through exposure of contaminated groundwater (Chakraborti D et al., Groundwater arsenic contamination in Ganga-Meghna-Brahmaputra plain, its health effects and an approach for mitigation. In: UNESCO UCI groundwate...
Article
Full-text available
To assess the status of severity of fluoride contamination in lateritic Bankura and Purulia districts of West Bengal, concentrations of fluoride in different water sources and agricultural field soils were investigated. The fluoride content (mg/l) was observed to differ with aquifer depths: 0.19–0.47 in dug wells, 0.01–0.17 in shallow tube wells, a...
Chapter
Full-text available
Global warming refers to climate change that causes an increase in the average temperature of the lower atmosphere. Global warming has emerged as the most serious environmental threat to the Earth in the twenty-first century. The global population is now discussing the environmental problems and their remedies. This environmental problem on a globa...
Article
The present study describes the potential of gamma rays in enhancing zinc tolerance of Aspergillus niger. Gamma exposed group of A. niger showed 1.82 times more zinc tolerance than the unirradiated ones. Gamma exposed A. niger grown in different zinc enriched media, showed increase in growth (expressed in terms of colony forming unit), higher effic...
Article
Full-text available
Exposure to arsenic in arsenic endemic areas is most remarkable environmental health challenges. Although effects of arsenic contamination are well established, reports are unavailable on probable seasonal variation due to changes of food habit depending on winter and summer seasons, especially for endemic regions of Nadia district, West Bengal. Co...
Article
Full-text available
In the present study we establish the use of the proton induced X-ray emission (PIXE) technique coupled with Rutherford backscattering as a sensitive technique for air-pollution monitoring. Several elements such as Al, Si, K, Ca, Ti, V, Cr, Mn, Fe, Co, Ni, Cu, Zn, and As were detected in the ppm level of concentration. Comparisons show the advantag...
Article
Levels of air pollution can be assessed through passive and active monitoring. However, due to several drawbacks of active monitoring recently much emphasis is being given to the passive monitoring of air-pollution. Street dust and the dusts deposited over the leaves of roadside trees can be considered a valuable indicator of environmental pollutio...
Data
Full-text available
A green hose pot experiment was conducted on three widely cultivated high yielding varieties of rice namely Ratna, IR 50 and Gangakaveri and on one local rice variety (Tulsa) of West Bengal, India to investigate the uptake and distribution of arsenic in the different fractions of the rice plant. 5.0, 10.0, 20.0, 30.0 and 40.0 ppm or mg kg -1 dry we...
Article
A supported Ni(II) complex has been synthesized and characterized by FTIR, UV–vis diffuse reflectance spectroscopy, thermogravimetric analysis and scanning electron microscopy. Its catalytic activity was evaluated for alkyne–azide coupling and benzothiazole synthesis. These reactions were found to require mild conditions, reaction times, and most i...
Article
Arsenic contamination of shallow groundwater and related health problems are threats for the millions in endemic regions of West Bengal. Contamination of rice grain creates the food chain pathway of mineral arsenic besides drinking water contamination. Present study concentrated on association of arsenic concentration in irrigated water, paddy fiel...
Article
An iron(III)–ferrocene complex and its heterogeneous analogue bound in a polymer resin have been prepared and employed as catalysts for the oxidation of various organic substrates. Characterization of the heterogeneous and homogeneous complexes was done by SEM, EDAX, TGA, FT-IR, DRS-UV, and spectroscopy. The catalyst’s activity, stability, and reus...
Article
Rice is prone to arsenic accumulation compared to other cereals as typically grown up under waterlogged situation favoring arsenic mobility. Arsenic in rice depends on arsenic availability to plants from irrigation water, even differs among cultivars and their plant parts. Present study was concentrated on arsenic accumulation in various plant part...
Article
Full-text available
We assessed the association between arsenic intake through water and diet, and arsenic levels in first morning-void urine under variable conditions of water contamination. This was done in a 2-year consecutive study in an endemic population. Exposure of arsenic through water and diet was assessed for participants using arsenic-contaminated water (≥...
Data
A study was conducted to assess the distribution of arsenic in the surface sediment and some selected estuarine flora and fauna of the heavily impacted but economically important Nayachar Island estuarine ecosystem. It was found that the sediments of the study area have a strong tendency to accumulate arsenic (4.11 ± 0.21 mg kg -1 dry weight). Amon...
Data
Full-text available
Arsenic, a potent carcinogen, can cause malignant arsenical skin lesions may be Bowen's disease, basal cell carcinoma, or squamous cell carcinoma. Apart from carcinoma and melanoma, chronic arsenic exposure can cause respiratory disease, gastrointestinal disorder, liver malfunction, nervous system disorder, haematological diseases like anaemia, leu...
Article
Full-text available
Microorganisms influence the fate of metals in environment. Increasing anthropogenic and geogenic activity had increase the risk of arsenic pollution and this has forced the future research area to involve microbes-metal toxicity to achieve bioremediation. The present study deals with the role of arsenite transforming bacteria and incorporates them...
Article
Full-text available
Arsenic, a potent carcinogen, can cause malignant arsenical skin lesions may be Bowen's disease, basal cell carcinoma, or squamous cell carcinoma. Apart from carcinoma and melanoma, chronic arsenic exposure can cause respiratory disease, gastrointestinal disorder, liver malfunction, nervous system disorder, haematological diseases like anaemia, leu...
Article
Full-text available
Mangroves in Sunderbans are being increasingly subjected to heavy metal pollution mostly due to their unique location as they receive pollutants both from upstream area of the Hoogly estuary and the sea. In the present study absorption, accumulation and partitioning of Zn, Cu, Pb, Cr and Cd in Avicennia officinalis L. in Jharkhali was studied to as...
Article
Full-text available
Abstract: Present study describes a site specific variation of leaf elemental concentration and Photosynthetic pigment concentration in a mangrove plant Excoecaria agallocha in Sundarban, India. Three locations (S1, S2 and S3) were selected according to water salinity gradient in north to southward direction. Range of water salinity is from 19 ppt...
Article
Full-text available
A study was conducted to assess the distribution of arsenic in the surface sediment and some selected estuarine flora and fauna of the heavily impacted but economically important Nayachar Island estuarine ecosystem. It was found that the sediments of the study area have a strong tendency to accumulate arsenic (4.11 ± 0.21 mg kg-1 dry weight). Among...
Data
Full-text available
Microorganisms influence the fate of metals in environment. Increasing anthropogenic and geogenic activity had increase the risk of arsenic pollution and this has forced the future research area to involve microbes-metal toxicity to achieve bioremediation. The present study deals with the role of arsenite transforming bacteria and incorporates them...
Article
Full-text available
Diversity and abundance of five species of epiphytic lichens were assessed in Kolkata, India. Significant correlation between abundance of lichen species and volume of vehicular traffic suggests atmospheric pollution load in urban region. Parmelia caperata (L.) Ach. And Graphis scripta (L.) Ach. exhibited higher abundance among the five species stu...
Article
Arsenic (As) contaminated water and foodstuffs are of major concern. Samples of drinking–cooking water (n = 50), raw rice (n = 50), common vegetables (eight types), and common pulses (three types) were collected from households in the endemic region. The study found up to 70% As reduction by using safe water for cooking of rice and vegetables. Spec...
Article
A field experiment was conducted in an irrigated saline rice field of Gadakujang (a fishing hamlet of coastal Odisha, India, ravaged by the super cyclone of 1999 and cyclone BOB02 of 2006), to study the effects of locally available organic and fresh green manure amendment to the saline soil on methane (CH4) emission during wet and dry seasons using...
Article
In the tropical experimental rice field of Central Rice Research Institute, Odisha, India, an experiment was conducted during the dry season (January–April) and wet season (July–November) of rice cultivation to study the effect of nitrogen (N), phosphorus (P) and potassium (K) fertilizer application on grain yield and methane (CH4) emission. The ex...
Article
The present study deals with quantifying the effectiveness of tree species in capturing atmospheric particulates and accumulating toxic elements like arsenic. This was achieved by analyzing the exposed leaves of six tree species (Ficus bengalensis, Ficus religiosa, Polyalthia longifolia, Anthocephalus cadamba, Putranjiva roxburghii, Alstonia schola...