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Bhattacharya, ProsunORCID iD iconorcid.org/0000-0003-4350-9950
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Publications (10 of 436) Show all publications
Kumar, M., Panday, D. P., Goswami, R., Neog, N., Bahukhandi, K. D., Zhang, J. & Bhattacharya, P. (2025). Dynamics of Arsenic Co-contamination in the Groundwater of the Eastern Himalayas: The Biogeochemical Drivers and GRACE-Based Evidence. ACS - ES & T Water, 5(6), 2833-2847
Open this publication in new window or tab >>Dynamics of Arsenic Co-contamination in the Groundwater of the Eastern Himalayas: The Biogeochemical Drivers and GRACE-Based Evidence
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2025 (English)In: ACS - ES & T Water, E-ISSN 2690-0637, Vol. 5, no 6, p. 2833-2847Article in journal (Refereed) Published
Abstract [en]

We probed the status quo of arsenic (As) and related cocontaminants like iron (Fe), fluoride (F-), and uranium (U) reported in aquifers of the eastern Himalayan region including the northeastern Indian states, the Ganga-Brahmaputra-Meghna basins, and Bangladesh. Our study appraised the hydro-geobiological features and probable sources of cocontamination and corroborated the variability concerning the conditions in Bangladesh. Increased awareness, advanced analytical capabilities, and support from international organizations have led to the identification of new contamination sites, with As levels in some areas exceeding the permissible value of 10 mu g L-1, reaching up to 986 mu g L-1. Key factors include mineral deposits enriched with As, Fe, U, and F- in the Indus-Tsangpo suture zone and the Siwalik Neogene sediments, influenced by iron (hydr)oxide and microbial processes, as well as growing reliance on groundwater. In northeastern India, cocontaminants are more prevalent due to diverse land use, quartzite, shale, sandstone, and clay deposits. In contrast, the contamination in Bangladesh is mainly associated with aquifer geology. Leveraging data from the Gravity Recovery and Climate Experiment (GRACE), this study identifies the significant challenge of groundwater overexploitation in both regions assessed. These findings offer opportunities to support sustainable goals, raise awareness, and implement mitigation to protect vulnerable communities.

Place, publisher, year, edition, pages
American Chemical Society (ACS), 2025
Keywords
arsenic, groundwater, India-Bangladesh, plate tectonics, co-contamination, EasternHimalayas
National Category
Oceanography, Hydrology and Water Resources
Identifiers
urn:nbn:se:kth:diva-365273 (URN)10.1021/acsestwater.4c00106 (DOI)001480023700001 ()2-s2.0-105004024581 (Scopus ID)
Note

QC 20250620

Available from: 2025-06-20 Created: 2025-06-20 Last updated: 2025-06-20Bibliographically approved
Suleiman, A. S., Bhattacharya, P. & Islam, M. A. (2025). Global prevalence and dynamics of mecA and mecC genes in MRSA: Meta-meta-analysis, meta-regression, and temporal investigation. Journal of Infection and Public Health, 18(7), Article ID 102802.
Open this publication in new window or tab >>Global prevalence and dynamics of mecA and mecC genes in MRSA: Meta-meta-analysis, meta-regression, and temporal investigation
2025 (English)In: Journal of Infection and Public Health, ISSN 1876-0341, E-ISSN 1876-035X, Vol. 18, no 7, article id 102802Article, review/survey (Refereed) Published
Abstract [en]

This study aimed to conduct first robust meta-meta-analysis on mecC and mecA-positive MRSA strains, determining their overall prevalence and temporal trends. It encompassed 14 meta-analyses, involving 322,269 samples from 553 index studies. MRSA strains exhibited mecA / mecC positivity ranging from 0.90 % to 69.98 %. Varied AMSTAR and QUOROM scores were observed. mecC-positive MRSA prevalence was 2.41 % (95 % CI: 0.72–7.78 %). Human mecA-positive MRSA had 21.77 % prevalence (95 % CI: 9.08–43.67 %), animal samples had 7.08 % prevalence (95 % CI: 3.93–12.42 %), and worldwide prevalence was 14.58 % (95 % CI: 6.61–29.14 %). Temporal trends reveal fluctuations, mecA prevalence spiked to 52.68 % in 2012 and decreased to 7.11 % in 2022. For mecC gene, the year 2015 marked a low incidence of 0.41 % (95 % CI: 0.05–3.54 %). Overall, mecA gene carriage surpassed mecC in MRSA strains, especially in humans.

Place, publisher, year, edition, pages
Elsevier Ltd, 2025
Keywords
Antimicrobial resistance, mecA, mecC, Meta-analyses, MRSA, Temporal changes
National Category
Microbiology
Identifiers
urn:nbn:se:kth:diva-363480 (URN)10.1016/j.jiph.2025.102802 (DOI)40319833 (PubMedID)2-s2.0-105004034875 (Scopus ID)
Note

QC 20250516

Available from: 2025-05-15 Created: 2025-05-15 Last updated: 2025-05-16Bibliographically approved
Kumar, R., Rose, P. K., Sharma, P. K., Lamba, J., Kumar, M. & Bhattacharya, P. (2025). Micro(nano)plastic and per- and polyfluoroalkyl substances in soil/sediment–water ecosystems: sources, transport, interactions, and challenges. Current Opinion in Chemical Engineering, 48, Article ID 101125.
Open this publication in new window or tab >>Micro(nano)plastic and per- and polyfluoroalkyl substances in soil/sediment–water ecosystems: sources, transport, interactions, and challenges
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2025 (English)In: Current Opinion in Chemical Engineering, E-ISSN 2211-3398, Vol. 48, article id 101125Article, review/survey (Refereed) Published
Abstract [en]

This article provides an overview of the contamination of micro(nano)plastics and per- and polyfluoroalkyl substances (PFAS) and their behavior in natural environmental settings. Interaction between micro(nano)plastics and PFAS is governed by functional groups, polarity, crystallinity, surface area, surface morphology, size, solution chemistry (i.e. pH, salinity, and organic matter), aging, and biofilm. Micro(nano)plastic adsorbs long-chain PFAS primarily via strong hydrophobic attraction (hydrophobic C–F chain tail of PFAS molecule), strong electrostatic attraction due to short-chain PFAS, and pore filling (high quantities of mesopores). Finally, this paper concludes the co-transport and enrichment of micro(nano)plastics and PFAS in sediments and aquatic environments.

Place, publisher, year, edition, pages
Elsevier BV, 2025
National Category
Environmental Sciences
Identifiers
urn:nbn:se:kth:diva-362208 (URN)10.1016/j.coche.2025.101125 (DOI)001463073500001 ()2-s2.0-105001554214 (Scopus ID)
Note

QC 20250414

Available from: 2025-04-09 Created: 2025-04-09 Last updated: 2025-05-26Bibliographically approved
Paul, S., Reinardy, B. T. I., Ddumba Walakira, D., Bhattacharya, P., Ernstson, H. & Kalantari, Z. (2024). A shallow water numerical method for assessing impacts of hydrodynamics and nutrient transport processes on water quality values of Lake Victoria. Heliyon, 10(3), Article ID e25125.
Open this publication in new window or tab >>A shallow water numerical method for assessing impacts of hydrodynamics and nutrient transport processes on water quality values of Lake Victoria
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2024 (English)In: Heliyon, ISSN 2405-8440, Vol. 10, no 3, article id e25125Article in journal (Refereed) Published
Abstract [en]

Lake Victoria is the world’s largest tropical lake and the third-largest water body, providingsignificant water resources for surrounding environments including the cultural, societal, andlivelihood needs of people in its basin and along the White Nile. The aim of this study was to usedecade-long time series of measured lake flow in the lake system and phosphorus deposition todevelop a suitable numerical model based on shallow water equations (SWE) for assessing waterquality in Lake Victoria, an increasingly important tool under climate variation. Different tech-niques were combined to identify a numerical model that included: i) a high-resolution SWEmodel to establish raindrop diffusion to trace pollutants; ii) a two-dimensional (2D) verticallyintegrated SWE model to establish lake surface flow and vertically transported wind speed flowacting on lake surface water by wind stress; and iii) a site-specific phosphorus deposition sub-model to calculate atmospheric deposition in the lake. A smooth (non-oscillatory) solution wasobtained by applying a high-resolution scheme for a raindrop diffusion model. Analysis with thevertically integrated SWE model generated depth averages for flow velocity and associatedchanges in water level profile in the lake system and showed unidirectional whole lake windblowing from the southwest to northeast. The atmospheric phosphorous deposition modelenabled water value assessment for mass balances with different magnitudes of both inflows andoutflows demonstrating annual total phosphorus at 13, 500 tons concentrating at mid-lakewestern and eastern parts. The model developed here is simple and suitable for use in assess-ing flow changes and lake level changes and can serve as a tool in studies of lake bathymetry andnutrient and pollution transport processes. Our study opens towards refining models of complexshallow-water systems

Place, publisher, year, edition, pages
Elsevier BV, 2024
National Category
Natural Sciences Oceanography, Hydrology and Water Resources
Identifiers
urn:nbn:se:kth:diva-343123 (URN)10.1016/j.heliyon.2024.e25125 (DOI)001181646300001 ()2-s2.0-85183976949 (Scopus ID)
Funder
KTH Royal Institute of Technology
Note

QC 20240212

Available from: 2024-02-06 Created: 2024-02-06 Last updated: 2024-04-05Bibliographically approved
Mahmud, F. M., Islam, M. A. A., Rubel, M. H., Bhattacharya, P. & Ahmed, F. (2024). A sustainable methodological approach for mitigation of salt stress of rice seedlings in coastal regions: Identification of halotolerant rhizobacteria from Noakhali, Bangladesh and their impact. MethodsX, 13, Article ID 102981.
Open this publication in new window or tab >>A sustainable methodological approach for mitigation of salt stress of rice seedlings in coastal regions: Identification of halotolerant rhizobacteria from Noakhali, Bangladesh and their impact
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2024 (English)In: MethodsX, ISSN 1258-780X, E-ISSN 2215-0161, Vol. 13, article id 102981Article in journal (Refereed) Published
Abstract [en]

Salinity hinders the growth of many crops common in the diet, such as rice, wheat and maize when cultivated in coastal salinity areas. Given the limited availability of cultivable land and the increasing growth of the population, it is necessary to enhance productivity. In this paper, we present an innovative approach to adopting Halotolerant Plant Growth Promoting Rhizobacteria (HPGPR) to enhance salt-tolerant rice varieties to solve salinity stress and enhance crop production. HPGPR has functions to overcome plant growth and development and is the most efficient bioinoculant for rice in saline environments. This approach can be considered a potential method because of the cost-effective and environmentally friendly impacts in agricultural production, which involves salt-affected areas.

Place, publisher, year, edition, pages
Elsevier BV, 2024
Keywords
Salt stress, HPGPR, Bioinoculant, Rhizobacterial effects
National Category
Agricultural Science
Identifiers
urn:nbn:se:kth:diva-355803 (URN)10.1016/j.mex.2024.102981 (DOI)001338517100001 ()2-s2.0-85206263848 (Scopus ID)
Note

QC 20241104

Available from: 2024-11-04 Created: 2024-11-04 Last updated: 2025-02-18Bibliographically approved
Jakariya, M., Rahman, M. M., Mahzabin, L., Chowdhury, A., Adiba, H., Alam, M. S., . . . Bhattacharya, P. (2024). Changing water sources and extraction methods in Bangladesh: Challenges, consequences, and sustainable solutions. Groundwater for Sustainable Development, 25, Article ID 101129.
Open this publication in new window or tab >>Changing water sources and extraction methods in Bangladesh: Challenges, consequences, and sustainable solutions
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2024 (English)In: Groundwater for Sustainable Development, E-ISSN 2352-801X, Vol. 25, article id 101129Article in journal (Refereed) Published
Abstract [en]

The quest for safe water in Bangladesh has resulted in the shift of water sources and extraction methods throughout history. The study aims to investigate the factors driving these changes, assess the consequences of current water consumption trends, and propose solutions for sustainable water management. The research highlights the historical shift from surface water to tube-wells for accessing groundwater, driven by their affordability and user-friendly nature. However, the discovery of arsenic contamination in tube-well water raised serious public health concerns, leading to the exploration of alternative water sources and extraction techniques. Various methods such as dug wells, pond sand filters, piped water supply, rainwater harvesting, and well-sharing have been adopted by communities and indigenous groups to ensure access to safe and clean water. The study reveals disparities in the installation of deep tube-wells by the government and NGOs, often overlooking safer water sources available at shallower depths. Furthermore, the study discusses the consequences of high-yielding technologies and increased water consumption in Sonargaon Upazila, leading to groundwater-related disasters and a decline in the groundwater table. Private irrigation facilities have become more popular among people, contributing to the declining groundwater table. This study provides insights into the changing water sources and extraction methods in Bangladesh, identifies the consequences of current water consumption trends, and proposes strategies for sustainable water management. The findings underline the importance of informed decision-making, government intervention, and community involvement to address the challenges of groundwater depletion and contamination in the region.

Place, publisher, year, edition, pages
Elsevier B.V., 2024
Keywords
Bangladesh, Paradigm shift, Safe water, Sonargaon upazila, Water use
National Category
Oceanography, Hydrology and Water Resources
Identifiers
urn:nbn:se:kth:diva-344330 (URN)10.1016/j.gsd.2024.101129 (DOI)2-s2.0-85186649655 (Scopus ID)
Note

QC 20240314

Available from: 2024-03-13 Created: 2024-03-13 Last updated: 2024-03-14Bibliographically approved
Bhattacharya, M., Pal, S., Chatterjee, S., Alshammari, A., Albekairi, T. H., Jagga, S., . . . Chakraborty, C. (2024). ChatGPT's scorecard after the performance in a series of tests conducted at the multi-country level: A pattern of responses of generative artificial intelligence or large language models. Current Research in Biotechnology, 7, Article ID 100194.
Open this publication in new window or tab >>ChatGPT's scorecard after the performance in a series of tests conducted at the multi-country level: A pattern of responses of generative artificial intelligence or large language models
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2024 (English)In: Current Research in Biotechnology, ISSN 2590-2628, Vol. 7, article id 100194Article in journal (Refereed) Published
Abstract [en]

Recently, researchers have shown concern about the ChatGPT-derived answers. Here, we conducted a series of tests using ChatGPT by individual researcher at multi-country level to understand the pattern of its answer accuracy, reproducibility, answer length, plagiarism, and in-depth using two questionnaires (the first set with 15 MCQs and the second 15 KBQ). Among 15 MCQ-generated answers, 13 +/- 70 were correct (Median : 82.5; Coefficient variance : 4.85), 3 +/- 0.77 were incorrect (Median: 3, Coefficient variance: 25.81), and 1 to 10 were reproducible, and 11 to 15 were not. Among 15 KBQ, the length of each question (in words) is about 294.5 +/- 97.60 (mean range varies from 138.7 to 438.09), and the mean similarity index (in words) is about 29.53 +/- 11.40 (Coefficient variance: 38.62) for each question. The statistical models were also developed using analyzed parameters of answers. The study shows a pattern of ChatGPT-derive answers with correctness and incorrectness and urges for an error-free, next-generation LLM to avoid users' misguidance.

Place, publisher, year, edition, pages
Elsevier BV, 2024
Keywords
ChatGPT, Accuracy, Reproducibility, Plagiarism, Answer length
National Category
Probability Theory and Statistics
Identifiers
urn:nbn:se:kth:diva-347204 (URN)10.1016/j.crbiot.2024.100194 (DOI)001226656400001 ()2-s2.0-85187948776 (Scopus ID)
Note

QC 20240604

Available from: 2024-06-04 Created: 2024-06-04 Last updated: 2024-06-04Bibliographically approved
Hu, K., Islam, M. A., Parvez, F., Bhattacharya, P. & Khan, K. M. (2024). Chronic exposure of arsenic among children in Asia: A current opinion based on epidemiological evidence. Current Opinion in Environmental Science and Health, 39, Article ID 100558.
Open this publication in new window or tab >>Chronic exposure of arsenic among children in Asia: A current opinion based on epidemiological evidence
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2024 (English)In: Current Opinion in Environmental Science and Health, E-ISSN 2468-5844, Vol. 39, article id 100558Article, review/survey (Refereed) Published
Abstract [en]

The health effects of arsenic (As) exposure are a major global environmental issue affecting millions of people around the globe. Although adult epidemiological studies on As-induced health consequences have been extensively reviewed, but not much comprehensive review has been done targeting children. In this epidemiological review, 64 human subject studies on children were identified after applying exclusion criteria, which addressed an array of health effects of As exposure in early life stages in South and Southeast (S–SE) Asian countries, where a great variability in As exposures has been reported. The present review identified neurocognitive impairment linked to As exposure in early life stages. In utero and childhood As exposures were also associated with genetic and metabolic alteration, elevated pneumonia risk, and skin lesions in several populations in S–SE Asia. Significant associations of As with epigenetic changes, DNA damages, abnormal birth outcomes, and elevated mortality were also reported in epidemiological studies. The findings of this review article may help public health policymakers and clinicians develop early-life intervention strategies to reduce the burden of diseases in As-exposed populations.

Place, publisher, year, edition, pages
Elsevier BV, 2024
Keywords
Adolescents, Arsenic, Children, Drinking water, Epidemiological evidence, Epigenetics, Health effects, Infants, Postnatal, Prenatal, South and Southeast Asia
National Category
Public Health, Global Health and Social Medicine
Identifiers
urn:nbn:se:kth:diva-348274 (URN)10.1016/j.coesh.2024.100558 (DOI)001251571400001 ()2-s2.0-85195372966 (Scopus ID)
Note

QC 20240703

Available from: 2024-06-20 Created: 2024-06-20 Last updated: 2025-02-20Bibliographically approved
Hossain, M. S. S., Hasnat, S., Akter, S., Mim, M. M., Tahcin, A., Hoque, M., . . . Hoque, M. N. (2024). Computational identification of Vernonia cinerea-derived phytochemicals as potential inhibitors of nonstructural protein 1 (NSP1) in dengue virus serotype-2. Frontiers in Pharmacology, 15, Article ID 1465827.
Open this publication in new window or tab >>Computational identification of Vernonia cinerea-derived phytochemicals as potential inhibitors of nonstructural protein 1 (NSP1) in dengue virus serotype-2
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2024 (English)In: Frontiers in Pharmacology, E-ISSN 1663-9812, Vol. 15, article id 1465827Article in journal (Refereed) Published
Abstract [en]

Background Dengue virus (DENV) infection, spread by Aedes aegypti mosquitoes, is a significant public health concern in tropical and subtropical regions. Among the four distinct serotypes of DENV (DENV-1 to DENV-4), DENV-2 is associated with the highest number of fatalities worldwide. However, there is no specific treatment available for dengue patients caused by DENV-2.Objective This study aimed to identify inhibitory phytocompounds in silico in Vernonia cinerea (V. cinerea), a widely used traditional medicinal plant, for treating DENV-2 associated illnesses.Methods The chemical structures of 17 compounds from V. cinerea were sourced from the Indian Medicinal Plants, Phytochemistry, and Therapeutics (IMPPAT) database. These compounds underwent geometry optimization, were screened against nonstructural protein 1 (NSP1) of DENV-2, and further validated through molecular dynamics simulations (MDS). Baicalein, an established drug against DENV-2, was used for validation in molecular screening, MDS, and MM-GBSA analyses.Results Among these compounds, Beta-amyrin, Beta-amyrin acetate, Chrysoeriol, Isoorientin, and Luteolin showed promising potential as inhibitors of the NSP1 of DENV-2, supported by the results of thermodynamic properties, molecular orbitals, electrostatic potentials, spectral data and molecular screening. Besides, these compounds adhered to the Lipinski's "rule of 5", showing no hepatotoxicity/cytotoxicity, with mixed mutagenicity, immunotoxicity, and carcinogenicity. Furthermore, final validation through MDS confirmed their potential, demonstrating stable tendencies with significant inhibitory activities against NSP1 of DENV-2 over the control drug Baicalein. Among the screened compounds, Chrysoeriol emerged as the most promising inhibitor of NSP1 of DENV-2, followed by Luteolin and Isoorientin.Conclusion Taken together, our results suggest that Chrysoeriol is the best inhibitor of NSP1 of DENV-2, which could be evaluated as a therapeutic agent or a lead compound to treat and manage DENV-2 infections.

Place, publisher, year, edition, pages
Frontiers Media SA, 2024
National Category
Medical Biotechnology
Identifiers
urn:nbn:se:kth:diva-356097 (URN)10.3389/fphar.2024.1465827 (DOI)001343829300001 ()39474614 (PubMedID)2-s2.0-85208612545 (Scopus ID)
Note

QC 20241115

Available from: 2024-11-08 Created: 2024-11-08 Last updated: 2025-05-27Bibliographically approved
Kumar, M., Honda, R., Snow, D., Mazumder, P. & Bhattacharya, P. (2024). COVID-19 in environment: Treatment, Infectivity, Monitoring, Estimation (TIME). Current Opinion in Environmental Science & Health, 39, Article ID 100551.
Open this publication in new window or tab >>COVID-19 in environment: Treatment, Infectivity, Monitoring, Estimation (TIME)
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2024 (English)In: Current Opinion in Environmental Science & Health, ISSN 2468-5844, Vol. 39, article id 100551Article in journal (Refereed) Published
Abstract [en]

The Virtual Special Issue (VSI) entitled "COVID-19 in Environment: Treatment, Infectivity, Monitoring, Estimation (TIME)" mainly brings together the different themes and perspectives related to wastewater epidemiology related to COVID-19. The issue further concentrates on the idea of the very much required scientific studies of the wastewater containing the SARS-CoV RNA; its contagious attributes if any; and the very important possibility of estimation and monitoring of patients based on the wastewater epidemiology. We have brought global perspectives related to the most suitable estimations methods based on SARS-COV-RNA data and development of an approach combining wastewater epidemiology and clinical diagnostic test could facilitate surveillance of public health system for informed decision making for better and effective treatment methods on one platform, thereby facilitating the expansion of the reach of these ideas and their audience. This VSI is going to act as an interface for microbiologists, environmental engineers, data scientists, civil engineers, remote-sensing experts, and modelers to integrate their findings on the aforementioned topics to etch out the probability of relative environmental risks and human health challenges. It has undergone an open call for papers and a rigorous peer-review process, where each submission has been evaluated by a panel of experts. In total, twenty-two articles could pass the test of external referees that represent the ongoing research and development activities in the topical research area of COVID-19 wastewater surveillance.

Place, publisher, year, edition, pages
Elsevier BV, 2024
National Category
Medical and Health Sciences
Identifiers
urn:nbn:se:kth:diva-352697 (URN)10.1016/j.coesh.2024.100551 (DOI)001292303900001 ()2-s2.0-85193252382 (Scopus ID)
Note

QC 20240905

Available from: 2024-09-05 Created: 2024-09-05 Last updated: 2024-09-05Bibliographically approved
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ORCID iD: ORCID iD iconorcid.org/0000-0003-4350-9950

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