Dissolved polycyclic aromatic hydrocarbons (PAHs-d) in response to hydrology variation and anthropogenic activities in the Yangtze River, China

Shang, Nana; Wang, Chuan; Kong, Jijie; Yu, Heyu; Li, Jianhong; Hao, Weiyue; Huang, Tao; He, Huan; Huang, Changchun

doi:10.1016/j.jenvman.2022.116673

Cited by 5 publications

(1 citation statement)

References 62 publications

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“…The dissolved form of PAHs is toxic and readily bioavailable to aquatic organisms; consequently, it directly impacts aquatic ecosystems [71]. Globally, many countries express concerns about PAH pollution in aquatic environments, leading to a considerable volume of research publications on PAH pollution and associated risks in aquatic ecosystems [57,62,68,69,[72][73][74][75][76][77][78][79][80]. However, research papers specifically addressing PAH concentrations or pollution in the water of Bangladesh are limited in the context of global research publications (Table 2).…”

Section: Pahs In Watermentioning

confidence: 99%

Sources, Occurrences, and Risks of Polycyclic Aromatic Hydro-Carbons (PAHs) in Bangladesh: A Review of Current Status

Uddin,

2024

Atmosphere

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Polycyclic aromatic hydrocarbons (PAHs) pollution has emerged as a significant environmental issue in Bangladesh in the recent years, driven by both economic and population growth. This review aims to investigate the current trends in PAHs pollution research, covering sediments, water, aquatic organisms, air particles, and associated health risks in Bangladesh. A comparative analysis with PAHs research in other countries is conducted, and potential future research directions are explored. This review suggests that the research on PAHs pollution in Bangladesh is less well studied and has fewer research publications compared to other countries. Dominant sources of PAHs in Bangladesh are fossil fuel combustion, petroleum hydrocarbons, urban discharges, industrial emissions, shipbreaking, and shipping activities. The concentrations of PAHs in sediments, water, air particles, and aquatic organisms in Bangladesh were found to be higher than those in most of the other countries around the world. Therefore, coastal sediments showed higher PAHs pollution than urban areas. Health risk assessments reveal both carcinogenic and non-carcinogenic risks to residents in Bangladesh due to the consumption of aquatic organisms. According to this investigation, it can be concluded that there are considerably higher PAHs concentrations in different environmental compartments in Bangladesh, which have received less research attention compared with other countries of the world. Considering these circumstances, this review recommends that future PAHs pollution research directions should focus on aquatic ecosystems, shipbreaking areas, air particles, and direct exposure to human health risks. Therefore, this study recommends addressing the identification of PAH sources, bioaccumulation, biomagnification in the food web, and biomarker responses of benthic organisms in future PAHs pollution research.

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