Microplastic in the Marine Environment of the Indian Ocean

Journal of Environmental Protection, Journal Year: 2023, Volume and Issue: 14(04), P. 297 - 359

Published: Jan. 1, 2023

Microplastic has been found in all major waterbodies the world. Many examples of ingestion microplastic by marine organisms have reported. This presence gives it possibility to penetrate human food chain increasing chance seafood targeted for consumption. Although is known that parts Indian Ocean suffer from significant plastic pollution, much systematic research on abundance different regions stems only last five years. manuscript reviews available literature 2015-2022 microplastics commercially important fish species Ocean. The data content beaches, subtidal sediment, sediment ocean floor, and surface water reviewed, also.

Language: Английский

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Characterization, source identification and hazard index assessment of ingested microplastics in farmed tilapia Oreochromis niloticus

Ecological Indicators, Journal Year: 2023, Volume and Issue: 158, P. 111334 - 111334

Published: Dec. 2, 2023

Plastic pollution is ubiquitous in marine and freshwater environments. Tilapia Oreochromis niloticus one of the most important cultured fish species South Asia. However, limited research has been conducted on impact hazard risk assessment microplastic (MP) tilapia. This study characterized ingested MPs identified potential sources gastrointestinal tracts (GTs) farmed tilapia their health assessment. GTs 36 samples were collected from 12 farms Noakhali District, Bangladesh. A total 199 particles extracted all samples. Mean abundance did not significantly vary among (F = 1.464, p 0.209). The highest numbers 8 to 10 MPs/GT Farm 2, while lowest 3 5 9. revealed that fibres dominant shape (90.95 %). In GT tilapia, black (25.13 %), blue (24.12 red (23.12 %) colour MPs. Most found within 300–1500 µm size accounted for 80.90 % MP particles. Identified polymers polyethylene (PE), polypropylene (PP), terephthalate (PET), polyvinyl chloride (PVC), which consistent with reported results literature. Observed polymer index (PHI) value this demonstrated PP (PHI 14.79) PET 33.12) "High" category (hazard level III), PE 507.65) PVC 307,730.77) fell under "Danger" IV) "Extreme danger" V) category, respectively. When ingested, these could enter human body directly have adverse effects require additional research. Hopefully, will increase our understanding microplastics through O. guide future

Language: Английский

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Microplastics in Different Tissues of a Commonly Consumed Fish, Scomberomorus guttatus, from a Large Subtropical Estuary: Accumulation, Characterization, and Contamination Assessment

Biology, Journal Year: 2023, Volume and Issue: 12(11), P. 1422 - 1422

Published: Nov. 12, 2023

Microplastics (MPs) ingestion by fish signifies a worldwide threat to human health but limited research has examined their existence within the consumable portions (muscle) of fish. Thus, this study was undertaken unveil prevalence, characterization, and contamination extent MPs across various body tissues, including muscle king mackerel (S. guttatus) from lower Meghna estuary in Bangladesh—a pioneering investigation region. In our analysis, we identified total 487 MPs, with an average abundance 48.7 ± 20.3 MPs/individual. These were distributed different respective concentrations 0.84 0.45 items/g digestive tract, 2.56 0.73 gills, 0.3 1.72 tissue. The observed variations among these tissue types statistically significant (p < 0.05). Moreover, positive correlation indicated that higher weight had gills DT (digestive tract). majority <0.5 mm size (97.74%) exhibited fiber-like shape (97.74%), notable prevalence transparent (25.87%) pink coloration (27.92%). Remarkably, discovered range <0.5–1 (100%), particularly tissue, signifying substantial transfer into diet. Besides, only three polymer microplastics which could be attributed extensive use food packaging, plastic containers, wrapping plastics, residential garbage, pipes end up aquatic environment via river discharges. factor (CF) values (5.75) tract (5.50) organs considerably contaminated (3 CF 6) MPs. pollution index (PLI > 1) high level for S. guttatus River estuary.

Language: Английский

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

Emerging contaminants, Journal Year: 2024, Volume and Issue: 10(3), P. 100309 - 100309

Published: Feb. 8, 2024

Microplastics (MPs) are synthetic contaminants that have received global attention due to their ubiquitous occurrence, extreme durability, and capacity harm ecosystems human health. This study investigated the occurrence of MPs in three fish species (Channa striata, Puntius sophore Anabas testudineus) collected from two locations (Ashulia Bridge Mirpur Road) Turag River, which flows alongside Dhaka city, Bangladesh. abundance (items/individuals) was highest Channa striata (3.8 ± 0.6) Ashulia area lowest (1.8 0.4) Road area. Fiber found be most dominant (89–93%) form followed by fragments (21–35%), films (0–26%) foams (0–5%). The color blue (69–83%), then red (20–33%), black (11–14%), green (8–20%), purple (6–8%). majority (56–71%) assessed were <0.5 mm size, 0.5–1.0 (29–33%) 1–5 (38–53%). ATR-FTIR examination revealed specific polymer varieties - PP (40%), PS (30%) LDPE (30%). results this provided a baseline pollution one major protein sources freshwater fishes raised concern on public health particularly who consume urban waterways.

Language: Английский

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Occurrence of microplastics in fish gastrointestinal tracts belongs to different feeding habits from the Bangladesh coast of the Bay of Bengal

Environmental Science and Pollution Research, Journal Year: 2024, Volume and Issue: 31(16), P. 24329 - 24343

Published: March 5, 2024

Language: Английский

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