Umma Salma, Y. Nishimura, Masahiro Tokumura, Anwar Hossain et al.
Owing to the extensive use of antibiotics in hospitals, animal husbandry, and various human activities, antibiotic contamination is becoming an increasing global concern, including in Bangladesh. In Bangladesh, the Buriganga River is heavily polluted with multiple antibiotics, which can lead to anti...
Masahiro Tokumura, Rurika Hatayama, Kouichi Tatsu, Toshiyuki Naito et al.
Fifty-five organic substances including volatile organic compounds (VOCs) and aldehydes present in indoor air were measured from 24 car cabins in Japan. A screening-level risk assessment was also performed. Acetaldehyde (3.81–36.0 μg/m<sup>3</sup>), formaldehyde (3.26–26.7 μg/m<sup>3</sup>), <em>n</...
Anwar Hossain, Y. Nishimura, Umma Salma, Masahiro Tokumura et al.
• Evaluation of the four oxidation processes for OTC and TOC removal. • The effects of water matrices on the removal experiments were evaluated. • All four OPs achieved approximately 99% OTC degradation within 30 min. • The photo-Fenton reaction exhibited the highest OTC and TOC removal rates. Antib...
Md. Khadimull Bashar, Kazushi Noro, Qi Wang, Masahiro Tokumura et al.
The Buriganga River plays a key role in the socioeconomic structure of Dhaka, the capital of Bangladesh. However, this river is severely polluted and is considered one of the most polluted in the world. Therefore, this study aimed to assess the concentrations of various metals in the Buriganga River...
Anwar Hossain, Mohammad Raknuzzaman, Masahiro Tokumura
Novel coronavirus, a severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) causes COVID-19, which has been a global threat for human health. The infection of coronavirus spread worldwide. Particularly, the rapid spread in the South American and Asian countries is concerning where population d...
Shuping Han, Mohammad Raknuzzaman, Wataru Naito, Shigeki Masunaga
Masahiro Tokumura, Jumpei Miyazaki, Mahmud Hossain, Anwar Hossain et al.
The consumption of arsenic and trace-metal-contaminated rice is a human health concern worldwide, particularly in Bangladesh. In this study, the effects of rice varieties and water management practices on the concentrations of arsenic and trace metals in rice grains were investigated to reduce human...
Evena Parvin Lipy, Md. Tazinur Rahman, Sadia Islam, Mohammad Raknuzzaman et al.
The present study was conducted to determine the extent of pollution of the Pasur River by HM, as well as the ecological and human health risks associated with the consumption of HM-contaminated fishes. For this purpose, the level of Pb, Cd, Cr, Cu, Ni, Mn, Zn and Co in water and Pb, Cd, Cr, Cu and ...
Mohammad Raknuzzaman, MH Al Mamun, Md. Kawser Ahmed, Masahiro Tokumura et al.
This study was conducted to determine the seasonal variation of Cr, Ni, Cu, Zn, As, Cd and Pb concentrations in water from four coastal sites of Bangladesh. The mean concentrations of trace metals in the water samples in the range of each elements were Cr (2.6−15.3), Ni (5.1−77.5), Cu (10.2−510), Zn...
Mohammad Raknuzzaman, Md. Habibullah‐Al‐Mamun
Purpose: We aimed to determine the amount of some toxic elements in three organs of Hilsa shad, focusing on the possible exposure to human health through Hilsa consumption. This study was designed to determine the concentration of seven toxic trace elements (As, Cd, Cr, Cu, Ni, Pb, and Zn) in three ...
Makoto Sekine, Masahiro Tokumura, Mohammad Raknuzzaman, Md. Kawser Ahmed et al.
Drinking of arsenic (As) contaminated ground water is threatening the health of millions of peoples of Bangladesh. The screening of tube wells (TWs) water for As in Bangladesh and elsewhere in the world is done by As testing kits. The results of water-As by these kits are semi-quantitative and perso...
Md. Khadimull Bashar, Kazushi Noro, Qi Wang, Masahiro Tokumura et al.
Md. Abul Kalam Azad, Mohammad Shamsur Rahman, Md Golam Rabbane, Md. Alamgir Kabir et al.
Makoto Sekine, Masahiro Tokumura, Mohammad Raknuzzaman, Abdullah Al Mamun et al.
International audience
Umma Salma, Anwar Hossain, Md. Shafiujjan, Y. Nishimura et al.