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Presence of Microplastic in Bottled Water from Mumbai Market
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Researchers tested five top-selling bottled water brands in Mumbai and found microplastics in every single one, with particles averaging about 82 micrometers in size. The contamination was detected across all brands at similar concentrations, suggesting that bottled water — often marketed as pure — is a consistent route of microplastic exposure for consumers.
The abundance of microplastics in the global environment has raised concerns about their transfer into various ecosystems, including water sources. Bottled drinking water, often considered a symbol of purity is not exempt from the infiltration of microplastics. The aim of this paper was to check for presence, if any, of microplastics in bottled drinking water. Overall, five top-brand water bottles available in supermarkets were analyzed. Microplastic contamination was found in all five brands of bottled water with almost similar concentrations with a mean size of 82 ± 22 μm with an average number of microplastics present was 15 ± 20 microplastics/ 30ml of water. Microplastics were filtered using appropriate-size filter paper. Key findings suggest that microplastics are indeed present in bottled drinking water with variations in concentration and polymer types. The sources of contamination, including the manufacturing process, packaging materials, and the environmental surroundings, are explored to shed light on potential entry points for microplastics. Further investigation of the contaminants is necessary to understand the discrepancy in the presence of microplastics in bottled water and essential precautions must be implemented in the purification process of bottled water packaging.
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Scientists tested bottled water and found tiny plastic particles—known as microplastics—in every sample, with counts ranging widely from 22 to 246 particles per liter. Most of these particles were identified as polyethylene, a common plastic used in packaging. While the health effects of consuming microplastics aren't fully understood yet, this study adds to growing evidence that bottled water may be a significant source of plastic exposure, highlighting the need for more research into what this means for our health.
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Research digests by email
When a large batch of papers lands in the Atlas, we read through it and send a short write-up of what stood out.