Surface water, sediment, and biota: The first multi-compartment analysis of microplastics in the Karnafully river, Bangladesh

Hossain, Md. Jaker; Aftabuddin, Sheikh; Akhter, Farida; Nusrat, Nabila; Rahaman, Md. Atikur; Sikder, Mohammad Nurul Azim; Monwar, Md. Mostafa; Chowdhury, Mohammed Shah Nawaz; Jiang, Shan; Shi, Huahong; Zhang, Jing

doi:10.1016/j.marpolbul.2022.113820

Cited by 49 publications

(12 citation statements)

References 135 publications

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“…MP samples were randomly selected and analyzed using FTIR. The results show that the polymers detected in the river water were polyethylene (PE), polypropylene (PP), polyethylene terephthalate (PET), nylon, rayon, PDMS, and poly (ethylene:propylene), as shown in Figures 6 and 7, which is consistent with many studies [18,[36][37][38][39][40][41][42][43]. It is noted that PE, PP, and PET were found in every sampling month (Table 2).…”

Section: Polymer Typessupporting

confidence: 89%

“…When the abundance of MPs found in this study was compared to that of others rivers around the world (Table 3), it was discovered that it was lower than that of studies in the rivers close to urban areas [36][37][38][39]46,47] but similar to those in the Tapi-Phumduang River in Thailand [18], the Hudson River in the USA [48], and the Karnafull River in Bangladesh [39]. MPs were found in the surface water of the Chao Phraya River in Bangkok, Thailand, at 21 ± 16 items/m3 and 104 items/m3, respectively, according to reports by Ounjain et al [37] and Tuan et al [38].…”

Section: Comparison Of Abundance Of Mps Worldwidementioning

confidence: 99%

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Occurrence of Microplastics in River Water in Southern Thailand

Pradit

Noppradit

Sengloyluan

et al. 2023

JMSE

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Microplastic (MP) contamination in the marine environment has received growing attention. In 2022, the surface water of the U-Taphao River was sampled four times, in February, April, June, and August. The surface water samples were taken at seven different locations, ranging from upstream to downstream parts of the river. The results reveal that the number of MPs detected at the U-Taphao River in February, April, June, and August were 0.41 ± 0.08, 0.25 ±0.06, 0.24 ± 0.11, and 0.26 ± 0.06 particles/L, respectively. The MPs in the U-Taphao River each month were not statistically different (p = 0.190). The trend of the number of MPs found declined from upstream to downstream. Fibers were the most commonly found MPs in the U-Taphao River in this study and were found at more than 80% of all stations during all sample collection periods. Our results indicate that MP contamination is present in the river water, but it is noted that slightly different polymer types were found during each collection month. MPs can be transferred through the food chain and potentially to humans. Regular monitoring of MPs in the riverine system is, therefore, important, for which the findings of the present study can be used as a baseline for the number of MPs in the river water in the region.

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Section: Polymer Typessupporting

confidence: 89%

Section: Comparison Of Abundance Of Mps Worldwidementioning

confidence: 99%

Occurrence of Microplastics in River Water in Southern Thailand

Pradit

Noppradit

Sengloyluan

et al. 2023

JMSE

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“…Sun et al ( 2019 ) investigated the pervasiveness of fibers in the treatment stages and reported the persistence of fibers during wastewater treatment processes. Notably, fibers and fragments are frequently reported as the most abundant shapes of MPs in several freshwater bodies, examples include the Karnafully River in Bangladesh, the Chengdu River in China, and several freshwater lakes and Rivers in Russia (Chen et al 2022 ; Frank et al 2022 ; Hossain et al 2022 ). Weideman et al ( 2019 ) reported a high abundance of fibers (98%) in bulk water samples.…”

Section: Resultsmentioning

confidence: 99%

Microplastic Abundance and Sources in Surface Water Samples of the Vaal River, South Africa

Saad,

Ramaremisa,

Ndlovu

et al. 2024

Bull Environ Contam Toxicol

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Microplastics (MPs) have emerged as a global environmental concern due to their persistent nature. In South Africa, microplastic research has primarily focused on marine systems. However, recent years have seen a shift in focus to studying MPs in South African freshwaters. In this study, MPs with a minimum size of 0.055 mm in surface water of the Vaal River, South Africa, were reported. MPs were 100% prevalent, with a mean numerical abundance of 0.68 ± 0.64 particles/m3. Small-sized MPs of < 1 mm accounted for the largest proportion. MPs were chemically identified as high-density polyethylene, low-density polyethylene, and polypropylene according to their Raman spectra. The prevalence of fragments (41.6%) and fibers (38.5%) over pellets (8.1%) indicates that microplastics are from secondary sources. The prevalence of polyethylene and polypropylene is consistent with microplastics being from secondary sources. These polymers are commonly used in single-use plastics, packing bags, textiles, and containers. These characteristics are of great concern due to their implications on the bioavailability and toxicological impacts of MPs. Consequently, these properties may pose more hazards to aquatic biota inhabiting the Vaal River.

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“…Upstream discharge, prevalence of shing activities and lack of waste management systems have been contributed to the plastic pollution burden in the Meghna River estuary. However, MPs can move through food webs, are detected in zooplankton, bivalves, crustaceans, corals, shes and seabirds from different regions of the world including the Karnaphuli River and coastal water of Bangladesh (Hossain et al 2022;2019). Thus, microplastics are active components of trophic interactions that may accumulate in greater concentrations in top predators like marine mammals and humans (Crawford and Quinn 2017).…”

Section: Discussionmentioning

confidence: 99%

Microplastics in fishes from the Meghna River estuary, Bangladesh

Hossain,

Bhuiyan,

Uddin

et al. 2023

Preprint

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Microplastics (MPs) were investigated in four fish species viz., Polynemus paradiseus, Rhinomugil corsula, Sillaginopsis panijus and Taenioides sandwipi, which were collected from the Meghna River estuary, Bangladesh. Gastrointestinal tracts of fishes (n = 80 in total) were examined for the presence of MPs following alkali digestion, microscopic observation and µ-FTIR analysis. Total 573 MPs were detected in four fish species, indicating MPs presence in 81.3% fish samples. There were 7.16 ± 4.33 MP items/fish, 2.16 ± 1.76 items/g of GIT and 0.15 ± 0.12 items/g of body weight. Polyethylene, polypropylene and nylon were the most abundant polymers. The majority of MPs were fiber (62.48%), while white color was the dominant one. Fifty-one percent MPs belonged to size < 500 µm, indicating that smaller particles were more bio-available to pelagic fishes. The findings confirm intrusion of MPs in the Meghna River estuary and fishes therein, posing a threat to public health via the food chain.

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Surface water, sediment, and biota: The first multi-compartment analysis of microplastics in the Karnafully river, Bangladesh

Cited by 49 publications

References 135 publications

Occurrence of Microplastics in River Water in Southern Thailand

Occurrence of Microplastics in River Water in Southern Thailand

Microplastic Abundance and Sources in Surface Water Samples of the Vaal River, South Africa

Microplastics in fishes from the Meghna River estuary, Bangladesh

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