Plastic pollution epidemic: Microplastics have found their way into our fruits and veggies
Plastic pollution epidemic: Microplastics have found their way into our fruits and veggies
Unwittingly, we may be consuming tiny fragments of plastic with almost every bite we take.
In 2022, analysis by the Environmental Working Group, an environmental non-profit, found that sewage sludge has contaminated almost 20 million acres (80,937sq km) of US cropland with per- and polyfluoroalkyl substances (PFAS), often called “forever chemicals”, which are commonly found in plastic products and do not break down under normal environmental conditions.
Sewage sludge is the byproduct left behind after municipal wastewater is cleaned. As it is expensive to dispose of and rich in nutrients, sludge is commonly used as organic fertiliser in the US and Europe. In the latter, this is in part due to EU directives promoting a circular waste economy. An estimated 8-10 million tonnes of sewage sludge is produced in Europe each year, and roughly 40% of this is spread on farmland.Due to this practice, European farmland could be the biggest global reservoir of microplastics, according to a study by researchers at Cardiff University.
A 2020 study found microplastics and nanoplastics in fruit and vegetables sold by supermarkets and in produce sold by local sellers in Catania in Sicily, Italy. Apples were the most contaminated fruit, and carrots had the highest levels of microplastics among the sampled vegetables.
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