Pervasiveness of microplastics in the gastrointestinal tract of some selected fish species from Turag River alongside the capital city of Bangladesh

Microplastic Occurrences in Freshwater Fish of Bangladesh

“…On the other hand, Khan et al [45] found that PS, PP, CA, PE, and PA were the identified polymer types in the fish samples of Turag River, whereas PS showed the highest concentration at 39%. The findings of this research are closely related to the Turag River study of Khan et al [46], where PP (40%), PS (30%), and PS (30%) were the chemical composition of fish samples. The findings of this study are similar to the results of fish samples in Lucknow, India, and Michigan, USA [53,54].…”

“…This finding is 1.21 times greater than the previous study of the Turag River [44]. On the other hand, Khan et al [46] and Mercy et al [48] found that 100 and 93.30% of Microplastic Occurrences in Freshwater Fish of Bangladesh DOI: http://dx.doi.org/10.5772/intechopen.114897 fish in the Turag River and various lakes of Dhaka are contaminated by MP, respectively. However, similar rates of MP contamination were observed in the Brazos River basin, USA (45-75%), and Prairie Creek, Canada (73.5%) [49,50].…”

“…However, Parvin et al [44] found that 36, 29, and 35% of MPs were in the range of <500 μm, (500 μm-1 mm), and (1-5) mm, respectively, in Turag River. On the other hand, Khan et al [46] observed that 56-71% of MPs were in the size of <0.5 mm. Like the Turag River, 42.38% of MPs in the Buriganga River were in <0.5 mm, whereas 31.13% were in (0.5-1) mm, and 26.49% were in the range of (1-5) mm.…”

“…Similar to this study, Khan et al [45] observed transparent (43%), red (28%), and white (20%) in the Turag River. However, Khan et al [46] found that the most dominant MPs' colors in Turag River fish samples were blue, red, green, black, and purple. Haque et al [47] also observed similar results with blue (30.40%), pink (10.90%), red (7.30%), and white (5.70%) in the Buriganga River.…”

“…Dhaka, the capital of Bangladesh, is surrounded by five big rivers along with many small canals and lakes. According to the existing research, the fish of the Turag, Balu, and Buriganga Rivers and Dhanmondi, Gulshan, and Hatir Jheel Lake in Dhaka have come to light of investigation [44][45][46][47][48]. The first study of MPs in freshwater fish in Bangladesh was conducted in 2021 based on the Turag and Balu Rivers [44].…”