Dipankar Chakraborti, Subhash Chandra Mukherjee, Shyamapada Pati, Mrinal Kumar Sengupta et al.
The pandemic of arsenic poisoning due to contaminated groundwater in West Bengal, India, and all of Bangladesh has been thought to be limited to the Ganges Delta (the Lower Ganga Plain), despite early survey reports of arsenic contamination in groundwater in the Union Territory of Chandigarh and its...
Mohammad Mahmudur Rahman, Uttam Kumar Chowdhury, Subhash Chandra Mukherjee, Badal Kumar Mondal et al.
Fifty districts of Bangladesh and 9 districts in West Bengal, India have arsenic levels in groundwater above the World Health Organization's maximum permissible limit of 50 microg/L. The area and population of 50 districts of Bangladesh and 9 districts in West Bengal are 118,849 km2 and 104.9 millio...
Tarit Roy Chowdhury, Gautam Basu, Badal Kumar Mandal, Bhajan Kumar Biswas et al.
Dipankar Chakraborti, Mohammad Mahmudur Rahman, Bhaskar Das, Matthew Murrill et al.
Since 1996, 52,202 water samples from hand tubewells were analyzed for arsenic (As) by flow injection hydride generation atomic absorption spectrometry (FI-HG-AAS) from all 64 districts of Bangladesh; 27.2% and 42.1% of the tubewells had As above 50 and 10 μg/l, respectively; 7.5% contained As above...
Mohammad Mahmudur Rahman, Debapriyo Mukherjee, Mrinal Kumar Sengupta, Uttam Kumar Chowdhury et al.
The exposure of millions to arsenic contaminated water from hand tube wells is a major concern in many Asiatic countries. Field kits are currently used to classify tube wells as delivering arsenic below 50 microg/L (the recommended limit in developing countries) as safe, painted green or above 50 mi...
Gautam Samanta, Tarit Roy Chowdhury, Badal Kumar Mandal, Bhajan Kumar Biswas et al.
Kathryn Thomson, Calie Dyer, Feiyan Liu, Kirsty Sands et al.
BACKGROUND: Sepsis is a major contributor to neonatal mortality, particularly in low-income and middle-income countries (LMICs). WHO advocates ampicillin-gentamicin as first-line therapy for the management of neonatal sepsis. In the BARNARDS observational cohort study of neonatal sepsis and antimicr...
Mohammad Mahmudur Rahman, Mrinal Kumar Sengupta, Sad Ahamed, Uttam Kumar Chowdhury et al.
To better understand the magnitude of arsenic contamination in groundwater and its effects on human beings, a detailed study was carried out in Jalangi, one of the 85 arsenic affected blocks in West Bengal, India. Jalangi block is approximately 122 km2 in size and has a population of 215538. Of the ...
Uttam Kumar Chowdhury, Mohammad Mahmudur Rahman, Mrinal Kumar Sengupta, Dilip Lodh et al.
Urinary arsenic is generally considered as the most reliable indicator of recent exposure to inorganic arsenic and is used as the main bio-marker of exposure. However, due to the different toxicity of arsenic compounds, speciation of arsenic in urine is generally considered to be more convenient for...
Bhaskar Das, Mohammad Mahmudur Rahman, Bishwajit Nayak, Arup Pal et al.
Mohammad Mahmudur Rahman, Mrinal Kumar Sengupta, Sad Ahamed, Uttam Kumar Chowdhury et al.
An in-depth study was carried out in Rajapur, an arsenic-affected village in West Bengal, India, to determine the degree of groundwater contamination with arsenic and the impact of this contamination on residents. The flow injection hydride generation atomic absorption spectrometry (FI-HG-AAS) metho...
Uttam Kumar Chowdhury, Bhajan Kumar Biswas, Tarit Roy Chowdhury, Gautam Samanta et al.
Nine districts in West Bengal, India, and 42 districts in Bangladesh have arsenic levels in groundwater above the World Health Organization maximum permissible limit of 50 microg/L. The area and population of the 42 districts in Bangladesh and the 9 districts in West Bengal are 92,106 km(2) and 79.9...
Md. Mahamudul Hasan, Shahadat Hosain, Pinku Poddar, ABM Alauddin Chowdhury et al.
Activities in the Bangladeshi leather industries have the potential to cause chemical pollutions thereby deteriorating the working environments, the surrounding residential areas, or even foodstuffs. Therefore, it is important to determine the chemical exposures among the industry workers and reside...
Mrinal Kumar Sengupta, Amitava Mukherjee, Md A. Hossain, Sad Ahamed et al.
Uttam Kumar Chowdhury, Bhajan Kumar Biswas, Ratan Dhar, Gautam Samanta et al.
Md. Bengir Ahmed Shuvho, Mohammad Asaduzzaman Chowdhury, Uttam Kumar Debnath
Abstract In this study, artificial neural network (ANN) is applied to predict the erosion rate of nylon-12 polymer to ensure the accuracy of soft computing. The ANN model was developed with 4 neurons in the input layer, 10 neurons in the hidden layer, and 1 neuron in the output layer. A backpropagat...
Mohammad Asaduzzaman Chowdhury, Uttam Kumar Debnath, Dewan Muhammad Nuruzzaman, Md. Monirul Islam
The erosion behaviors of aluminum alloy have been evaluated practically at different test conditions under ambient temperature. Irregular silica sand (SiO 2 ) is used as an erodent within the range of 300–600 µm. The impact velocity within 30–50 m/s, impact angle 15–90°, and stand-off distance 15–25...
Mohammad Asaduzzaman Chowdhury, Nayem Hossain, Mohammad Shahin, Uttam Kumar Debnath et al.
Mohammad Mahmudur Rahman, Mrinal Kumar Sengupta, Sad Ahamed, Uttam Kumar Chowdhury et al.
A detailed study was carried out in a cluster of villages known as Sagarpara Gram Panchayet (GP), covering an area of 20 km2 and population of 24,419 to determine the status of groundwater arsenic contamination and related health effects. The arsenic analysis of all hand tubewells (n = 565) in worki...
D. Chakraborti, Bhajan Kumar Biswas, Gautam Basu, Uttam Kumar Chowdhury et al.
The groundwater arsenic contamination in Bangladesh is a phenomenon of surface ero- sion, transportation and deposition in the form of Delta and ∼lood Plain. While dealing with such geomorphological units like Tableland, Flood Plain, Delta and Hill Tract in Bangladesh, we have found the possibility ...