Wintertime black carbon assessment in dhaka, Bangladesh: Integrated health risk analysis
This study investigated the ramifications of black carbon (BC) emissions on human health during the winter season of December 2019 to February 2020 in Dhaka, Bangladesh. BC, arising from incomplete combustion of fossil and biofuels, underwent meticulous measurement of densities, concentrations, and...
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Elsevier
2025-01-01
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2405844025001896 |
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| author | A.K.M. Nayem Shahid Uz Zaman Farida Begum Abdus Salam |
| author_facet | A.K.M. Nayem Shahid Uz Zaman Farida Begum Abdus Salam |
| author_sort | A.K.M. Nayem |
| collection | DOAJ |
| description | This study investigated the ramifications of black carbon (BC) emissions on human health during the winter season of December 2019 to February 2020 in Dhaka, Bangladesh. BC, arising from incomplete combustion of fossil and biofuels, underwent meticulous measurement of densities, concentrations, and emissions at two pivotal sites. Employing low-volume air samplers with Quartz filters and subsequent analysis with an Aethalometer (Soot scanner, OT21, USA), the study unveiled monthly average BC densities of 1.64 μg cm−2, concentrations of 4.99 μg m−3, and emissions of 0.038 μg J−1. Health risk assessments revealed higher cancer risks (CRs) at Site-1 (children: 2.82 × 10−4 and adult: 4.72 × 10−4) compared to Site-2 (children: 2.56 × 10−4 and adult: 4.30 × 10−4). Hazard quotients (HQs) averaged 0.29 for children and 0.19 for adults in Dhaka. BC exposure escalated relative risks (RR) for all-cause mortality (RR = 1.136), cardiovascular mortality (RR = 1.169), and respiratory mortality (RR = 1.277). These findings underscore the substantial implications of BC's influence, particularly in a nation like Bangladesh, and furnish invaluable insights into aerosol characteristics and emission sources in South Asia, facilitating the formulation of emission inventories. |
| format | Article |
| id | doaj-art-060926b27f5f48a2a7bd711a33942e58 |
| institution | Kabale University |
| issn | 2405-8440 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | Elsevier |
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| series | Heliyon |
| spelling | doaj-art-060926b27f5f48a2a7bd711a33942e582025-02-02T05:28:16ZengElsevierHeliyon2405-84402025-01-01112e41809Wintertime black carbon assessment in dhaka, Bangladesh: Integrated health risk analysisA.K.M. Nayem0Shahid Uz Zaman1Farida Begum2Abdus Salam3Department of Chemistry, Faculty of Science, University of Dhaka, Dhaka, 1000, BangladeshDepartment of Chemistry, Faculty of Science, Bangladesh University of Engineering and Technology, Dhaka, 1000, Bangladesh; Corresponding author.Department of Chemistry, Faculty of Science, University of Dhaka, Dhaka, 1000, BangladeshDepartment of Chemistry, Faculty of Science, University of Dhaka, Dhaka, 1000, BangladeshThis study investigated the ramifications of black carbon (BC) emissions on human health during the winter season of December 2019 to February 2020 in Dhaka, Bangladesh. BC, arising from incomplete combustion of fossil and biofuels, underwent meticulous measurement of densities, concentrations, and emissions at two pivotal sites. Employing low-volume air samplers with Quartz filters and subsequent analysis with an Aethalometer (Soot scanner, OT21, USA), the study unveiled monthly average BC densities of 1.64 μg cm−2, concentrations of 4.99 μg m−3, and emissions of 0.038 μg J−1. Health risk assessments revealed higher cancer risks (CRs) at Site-1 (children: 2.82 × 10−4 and adult: 4.72 × 10−4) compared to Site-2 (children: 2.56 × 10−4 and adult: 4.30 × 10−4). Hazard quotients (HQs) averaged 0.29 for children and 0.19 for adults in Dhaka. BC exposure escalated relative risks (RR) for all-cause mortality (RR = 1.136), cardiovascular mortality (RR = 1.169), and respiratory mortality (RR = 1.277). These findings underscore the substantial implications of BC's influence, particularly in a nation like Bangladesh, and furnish invaluable insights into aerosol characteristics and emission sources in South Asia, facilitating the formulation of emission inventories.http://www.sciencedirect.com/science/article/pii/S2405844025001896Black carbonPM2.5Hazard quotientCardiovascular mortalityCancer risk |
| spellingShingle | A.K.M. Nayem Shahid Uz Zaman Farida Begum Abdus Salam Wintertime black carbon assessment in dhaka, Bangladesh: Integrated health risk analysis Heliyon Black carbon PM2.5 Hazard quotient Cardiovascular mortality Cancer risk |
| title | Wintertime black carbon assessment in dhaka, Bangladesh: Integrated health risk analysis |
| title_full | Wintertime black carbon assessment in dhaka, Bangladesh: Integrated health risk analysis |
| title_fullStr | Wintertime black carbon assessment in dhaka, Bangladesh: Integrated health risk analysis |
| title_full_unstemmed | Wintertime black carbon assessment in dhaka, Bangladesh: Integrated health risk analysis |
| title_short | Wintertime black carbon assessment in dhaka, Bangladesh: Integrated health risk analysis |
| title_sort | wintertime black carbon assessment in dhaka bangladesh integrated health risk analysis |
| topic | Black carbon PM2.5 Hazard quotient Cardiovascular mortality Cancer risk |
| url | http://www.sciencedirect.com/science/article/pii/S2405844025001896 |
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