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Microplastics Contamination in Nonalcoholic Beverages from the Italian Market
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Researchers tested nonalcoholic beverages including soft drinks and cold tea from Italian supermarkets for microplastic contamination. They found microplastics, predominantly fibers, in most samples, averaging about 9 particles per liter. The study confirms that beverage consumption is a meaningful pathway for human microplastic ingestion, adding to growing evidence of widespread plastic contamination in food and drink products.
A growing number of studies have confirmed that microplastics (MPs) contamination represents a worrisome issue of global concern. MPs have been detected in the atmosphere, in aquatic and terrestrial ecosystems, as well as in the biota. Moreover, MPs have been recently detected in some food products and in drinking water. However, only limited information is currently available for beverages, although they are largely consumed by humans and might contribute to the ingestion of MPs. Thus, estimating the contamination in beverages represents a crucial step in assessing human MP ingestion. The aim of the present study was to explore the presence of MPs in nonalcoholic beverages, namely soft drinks and cold tea, of different brands purchased in supermarkets and to estimate the contribution of beverage consumption to MP ingestion by humans. The results of the present study confirmed the presence of MPs, mainly fibers, in most of the analyzed beverages, with a mean (± SEM) number of 9.19 ± 1.84 MPs/L. In detail, the number of MPs detected in soft drinks and cold tea was 9.94 ± 0.33 MPs/L and 7.11 ± 2.62 MPs/L, respectively. Our findings confirmed that beverage consumption can be considered one of the main pathways for MP ingestion by humans.
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