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Baseline assessment of microplastic contamination in water, sediment, and biotic compartments of the Indus River at Mianwali, Pakistan
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Scientists found tiny plastic particles (mostly plastic fibers, likely from clothing and fishing nets) in every single sample of water, sediment, fish, and mussels they tested from Pakistan's Indus River. Since fish and mussels from this river are commonly eaten, this means people could be unknowingly consuming these plastic particles through their food, though more research is needed to understand the actual health effects. This study is important because it creates a first-of-its-kind baseline for tracking plastic pollution in this major river over time.
Microplastics are significant contaminants in freshwater ecosystems, yet baseline data for the Indus River are limited. This first comprehensive assessment of MPs across four sampling sites (S1–S4) along the Indus River near Mianwali, analysing water, sediments, fish , and freshwater mussels. A total of 861 particles were detected, confirming a 100% contamination prevalence. Water showed the highest abundance (37.40%), followed by fish gastrointestinal tissues (19.74%), sediments (17.89%), gills (14.40%), and mussels (10.57%). Colour profiling revealed black (31.13%) and red (28.11%) particles were dominant, while green (9.52%), transparent (9.41%), and dark blue (9.30%) were moderate. Morphologically, fibres were excessively dominant (87.85%), followed by fragments (10.82%), indicating strong input from textile effluent, fishing gear abrasion, and domestic wastewater. FTIR confirmed the presence of polyethylene, polypropylene, and polystyrene among others, while SEM showed weathering features such as pits, cracks, and abrasion. MPs in edible aquatic tissues highlights potential food-chain transfer and public health risks. This study establishes baseline dataset for MP contamination in the Indus River, providing a reference for tracking trends and informing regulatory measures. Furthermore, it contributes valuable insights into the MP pollution in a key South Asian river system, supporting management strategies for similar freshwater environments globally. HighlightsRiver bed sediment, water, fish, and mussels are affected by MPs.The levels of MPs decreased in the order water > fish > sediments > mussels.Fibres and fragments were the most common, followed by films and beads.Brightly coloured MPs, including blue, black, and red, were the main types found in all samples.First comprehensive MP assessment in the Indus River near Mianwali. River bed sediment, water, fish, and mussels are affected by MPs. The levels of MPs decreased in the order water > fish > sediments > mussels. Fibres and fragments were the most common, followed by films and beads. Brightly coloured MPs, including blue, black, and red, were the main types found in all samples. First comprehensive MP assessment in the Indus River near Mianwali.
More Papers Like This
Baseline assessment of microplastic contamination in water, sediment, and biotic compartments of the Indus River at Mianwali, Pakistan
AI summary Read the abstract
Scientists found tiny plastic particles, mostly from textile fibers and fishing gear, in every single water, sediment, fish, and mussel sample they tested from Pakistan's Indus River. Since fish and mussels from this river are commonly eaten, this means these plastic fibers could be making their way into people's food, raising concerns about long-term health effects that researchers are still working to understand. This study creates an important baseline for tracking pollution trends and pushing for better waste management in the region.
Baseline assessment of microplastic contamination in water, sediment, and biotic compartments of the Indus River at Mianwali, Pakistan
AI summary Read the abstract
Scientists found tiny plastic particles (mostly plastic fibers, likely from clothing and fishing nets) in every single water, sediment, fish, and mussel sample they tested from Pakistan's Indus River. Since fish and mussels from this river end up on people's plates, this means microplastics could be making their way into human diets, though more research is needed to understand exactly how much risk this poses to our health.
Microplastic pollution in Indus Water System of Pakistan
AI summary Read the abstract
This study documents microplastic pollution across multiple compartments of the Indus River system in Pakistan, one of Asia's major waterways. Microplastics were found in water, sediment, and biological samples throughout the basin. This appears to be a conference abstract or short communication rather than a full research article.
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Scientists found microplastics, tiny plastic bits, in 78% of Labeo rohita fish from Pakistan's Indus River, a popular food fish. Most were plastic fibers, and contamination was worse downstream, likely from pollution buildup. Since this fish is widely eaten, these findings raise concerns about how much plastic ends up on our plates.
Evidence of microplastic contamination in the food chain: an assessment of their presence in the gastrointestinal tract of native fish
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Researchers found microplastics, mainly polyethylene and polypropylene, in the guts of fish from the Swat and Kabul rivers in Pakistan. These rivers are primary freshwater sources for the region, and the contaminated fish are regularly consumed by local communities. The findings confirm that freshwater fish from polluted rivers are a pathway for microplastic exposure in people's diets.
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