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Microplastic contamination in open-air market cauliflowers: integrated laboratory detection and vendor awareness assessment in Madurai, India
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Cauliflower sold at open-air markets in Madurai, India contained tiny plastic particles (up to 16 pieces per cauliflower), while the same vegetable from supermarkets had none — suggesting the contamination likely comes from market handling, packaging, or storage rather than farming itself. Even more concerning, over 90% of the vendors surveyed had no idea this contamination was happening, meaning the problem is likely going unaddressed. While researchers are still studying exactly how eating microplastics affects the body long-term, this study is a reminder that the food you buy from open markets may carry hidden plastic exposure that even
Urban food systems are at risk from microplastic contamination due to inadequate awareness among vendors and direct food contamination. In this integrated study, microplastics were detected in cauliflower from three high-traffic markets in Madurai, Tamil Nadu, India, along with a comprehensive survey of 111 food vendors to assess knowledge, risk perception, and behavioural intentions. In all market samples, microplastics were detected (9-16 particles per cauliflower), while they were absent from supermarket comparisons. Fourier Transform Infrared Spectroscopy (FTIR) analysis identified multiple polymer types including polystyrene, polypropylene, polytetrafluoroethylene, and polyethylene terephthalate, with additional polymer signatures detected requiring further confirmation. The survey among vendors revealed alarmingly low awareness (6.3%), concentrated exclusively in Villapuram market (χ = 11.81, p = 0.003), with limited health risk perception (30.6%) and low willingness to adopt alternative packaging (18.0%). Factor analysis identified three behavioural dimensions: Environmental Consciousness, Health Concern, and Business Adaptability. It is alarming to note that vendors are not aware of contamination despite measurable contamination, which highlights the need for targeted interventions.
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This Indian study examined microplastic contamination in freshwater and marine fish sold in markets in Tamil Nadu, finding plastic particles in multiple commercially important species. People who regularly eat fish from contaminated markets are likely consuming microplastics as part of their diet.
Is our food safe? Microplastic occurrence and characteristics in vegetables cultivated in the vicinity of a municipal solid waste dumping ground—insights from Kolkata, India
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This Indian study investigated microplastic contamination in vegetables grown near a municipal waste dumping ground in Kolkata, finding MPs in all eleven vegetable types sampled. Leafy vegetables near the dump site had higher MP levels, raising food safety concerns for populations relying on locally grown produce.
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Researchers tested lettuce (green oak, red oak, and cos) grown hydroponically and sold at supermarkets in Thailand for microplastics. All samples contained microplastic particles, mostly small fibers, with green oak showing the highest average amount. The study could not identify the exact plastic types and calls for more research into how contamination occurs.
Microplastics in food grains, fruits, and vegetables: Comparative Assessment of Awareness among the Indian Housewives from Cities and Villages
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A survey comparing microplastic awareness among Indian housewives in cities versus villages found that urban women had significantly higher knowledge about microplastic contamination in food grains, fruits, and vegetables. The study highlights the urban-rural information divide and suggests targeted public health communication is needed to raise awareness in rural populations about food chain microplastic risks.
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