Md. Kawser Ahmed, Nazma Shaheen, Md. Saiful Islam, Md. Habibullah‐Al‐Mamun et al.
Concentrations of fourteen trace elements (Cd, As, Pb, Cr, Ni, Zn, Se, Cu, Mo, Mn, Sb, Ba, V and Ag) in the composite samples of most frequently consumed two staple foods, i.e. rice and wheat (collected from 30 different agroecological zones for the first time in Bangladesh) were measured by ICP-MS....
Md. Saiful Islam, Md. Kawser Ahmed, Mohammad Raknuzzaman, Md. Habibullah‐Al‐Mamun et al.
Six trace metals (chromium [Cr], nickel [Ni], copper [Cu], arsenic [As], cadmium [Cd] and lead [Pb]) were measured in sediments and soft tissues of three commonly consumed fish species (Channa punctatus, Heteropneustes fossilis, and Trichogaster fasciata) collected from three urban rivers around Dha...
Md. Habibullah‐Al‐Mamun, Md. Kawser Ahmed, Md. Saiful Islam, Masahiro Tokumura et al.
Full profile of polychlorinated biphenyls (PCBs) in the coastal surface water from Bangladesh were analyzed by GC-MS/MS to explore the status of contamination, spatiotemporal distribution and to trace their potential sources. The total concentrations of dissolved PCBs (∑PCBs, sum of all congeners) v...
Md. Saiful Islam, Md. Kawser Ahmed, Mohammad Raknuzzaman, Md. Habibullah‐Al‐Mamun et al.
Md. Saiful Islam, Md. Kawser Ahmed, Md. Habibullah‐Al‐Mamun, Kazi Nazrul Islam et al.
The non-carcinogenic and carcinogenic risk of arsenic and lead to adults and children via daily dietary intake of food composites in Bangladesh was estimated. The target hazard quotients (THQs), hazard index (HI) and target carcinogenic risk (TR) were calculated to evaluate the non-carcinogenic and ...
Md. Kawser Ahmed, Md. Habibullah‐Al‐Mamun, M. Anwar Hossain, Mohammad Ali Arif et al.
This experiment was conducted to study the genotoxic potentials of sodium arsenite (NaAsO(2)) in freshwater fish Oreochromis mossambicus by using alkaline comet assay and micronucleus (MN) test. Fish were exposed to three different concentrations (3 ppm, 28 ppm and 56 ppm) of arsenic and gill, liver...
Md. Kawser Ahmed, Goutam Kumar Kundu, Md. Habibullah‐Al‐Mamun, Sounik Sarkar et al.
Acute toxicity and genotoxicity of Chromium(VI) as K2Cr2O7 were evaluated in freshwater stinging catfish, Heteropneustes fossilis. Fish showed behavioral alterations after K2Cr2O7 exposure and 96h-LC50 was 35.724mg/L in semi-static bioassay. Fish were exposed to three sub-lethal concentrations (conc...
Md. Saiful Islam, Md. Kawser Ahmed, Md. Habibullah‐Al‐Mamun, Mohammad Raknuzzaman et al.
Md. Saiful Islam, Md. Kawser Ahmed, Md. Habibullah‐Al‐Mamun
Md. Saiful Islam, Md. Kawser Ahmed, Md. Habibullah‐Al‐Mamun
This research was conducted to evaluate the concentration of seven common heavy metals (Cr, Ni, Cu, Zn, As, Cd, and Pb) in cereals and pulses and associated health implications in Bangladesh. USEPA deterministic approaches were followed to assess the carcinogenic risk (CR) and noncarcinogenic risk w...
M. Safiur Rahman, Solaiman Hossain, Md. Kawser Ahmed, Sharmin Akther et al.
• Chemical pollution in marine ecosystems is leading towards an increase in the concentrations of heavy metals in fish body, which might have a negative impact on human health through consumption of fish. Here, five commercially important marine fishes (i.e. Sillaginopsis panijus, Trichiurus lepturu...
Md. Saiful Islam, Md. Kawser Ahmed, Md. Habibullah‐Al‐Mamun, Shigeki Masunaga
Levels of six metals i.e. chromium (Cr), nickel (Ni), copper (Cu), arsenic (As), cadmium (Cd) and lead (Pb) in three fish species (Channa punctatus, Heteropneustes fossilis and Trichogaster fasciata) from three urban rivers in Bangladesh were measured. Concentrations of Cr, Ni, Cu, As, Cd and Pb in ...
Solaiman Hossain, Md. Kawser Ahmed, Subrata Sarker, M. Safiur Rahman
We aimed to determine the temporal variation of trace metals concentrations in surface water and surface sediment samples at Kutubdia Channel, Bangladesh. Trace metals of samples were detected using energy dispersive X-ray fluorescence (Energy-dispersive X-ray spectroscopy) method. The lowest concen...
Md. Saiful Islam, Md. Kawser Ahmed, Md. Habibullah‐Al‐Mamun, Shigeki Masunaga
In the present study, we investigated the levels of chromium (Cr), nickel (Ni), copper (Cu), arsenic (As), cadmium (Cd) and lead (Pb) in eight groups of foods, namely, cereals, pulses, vegetables, fruit, fish, meat, eggs and milk. The range of Cr, Ni, Cu, As, Cd and Pb in the foodstuffs was 0.18–4.8...
Md. Saiful Islam, Md. Kawser Ahmed, Md. Habibullah‐Al‐Mamun
This study was conducted to investigate the contamination level of heavy metals in soil and vegetables, chemical speciation, and their transfer to the edible part of vegetables. Metals were analyzed using inductively coupled plasma mass spectrometer (ICP-MS). The ranges of Cr, Ni, Cu, As, Cd, and Pb...