Assessment of microplastics pollution in aquatic species (fish, crab, and snail), water, and sediment from the Buriganga River, Bangladesh: An ecological risk appraisals

被引:87
作者
Haque, Md. Rashedul [1 ]
Ali, Mir Mohammad [2 ]
Ahmed, Wahida [1 ]
Siddique, Md. Abu Bakar [3 ]
Akbor, Md. Ahedul [3 ]
Islam, Md. Saiful [4 ]
Rahman, Md. Mostafizur [1 ,5 ]
机构
[1] Jahangirnagar Univ, Dept Environm Sci, Lab Environm Hlth & Ecotoxicol, Dhaka 1342, Bangladesh
[2] Sher e Bangla Agr Univ, Dept Aquaculture, Dhaka 1207, Bangladesh
[3] Bangladesh Council Sci & Ind Res BCSIR, Inst Natl Analyt Res & Serv INARS, Dhaka 1205, Bangladesh
[4] Patuakhali Sci & Technol Univ, Dept Soil Sci, Patuakhali 8602, Bangladesh
[5] Jahangirnagar Univ, Dept Environm Sci, Dhaka 1342, Bangladesh
关键词
Bangladesh; Urban River; Environmental and biological samples; Plastic and metal pollution; Ecological risks; HEAVY-METALS; WASTE-WATER; FT-IR; MESOPLASTICS; POLYMERS; COASTAL; HEALTH; DEBRIS;
D O I
10.1016/j.scitotenv.2022.159344
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
Current work focus on microplastic (MPs) occurrence in the water, sediment, and aquatic species (fish, crab, and snail) of the Buriganga River, Bangladesh, with an ecological risk assessment perspective. It also includes the distribution of MPs in different river ecosystem segments and the presence of heavy metal (loid)s (HMs) in water, sediments, and MPs surface. The MPs were inspected by stereomicroscope to identify the shapes, color, and size, and Fourier transform infrared (FTIR) spectroscopy was used to characterize polymer types. The samples concentration of four HMs viz., As, Cd, Cr, and Pb were determined by atomic absorption spectrometry (AAS). The possible MPs content in water, sediment, fish, crab, and snail were varied from 0.250 to 0.117 MPs/mL, 3.5-8.17 MPs/g, 0.65-3.82 MPs/g, 3.75-4.28 MPs/g, and 0.84-1.12 MPs/g, respectively. Fibers and fragments were the most dominant shape, less than 0.5 mm was dominant in size, and blue was the dominant color. In the evaluation of the chemical composition of MPs in water, sediment, fish, snail, and crab samples, Polyethylene terephthalate (PETE), Ethylene-vinyl acetate (EVA), High-density polyethylene (HDPE), Acrylonitrile butadiene styrene (ABS), Cellulose acetate (CA), and Nylon were identified. Regarding HMs load, the river demonstrated a highly polluted environment following the abundance pattern Cr > Pb > As>Cd. SEM-EDAX of MPs was conducted to investigate the surface MP's surface and elemental composition. It reveals that the MPs surface has characteristic flakes, cracks, and adhering particles along with Si, K, Au, C, and O on the surface studied MPs. There is no significant relationship found among the ecosystem segments. However, Ompok bimaculatus species show a negative relationship of MPs distribution with water and sediment. Moreover, according to the ecological risk of MPs pollution in the Buriganga River, it was in category-I, indicating considerable pollution load due to the presence of MPs.
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页数:15
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