More than 150 countries agree to ban 3 toxic chemicals

Posted on May 12, 2023 by DrRossH in Plastic Waste News

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An international treaty regulating hazardous pollutants — agreed to add three new chemicals to a list of globally banned substances, including the plastic additives UV-328 and Dechlorane Plus. The move is expected to safeguard people and the natural world, although a handful of exemptions mean the chemicals will not completely disappear as a threat.

The most recently banned chemicals include a pesticide called methoxychlor, as well as two plastic additives: UV-328, which absorbs UV light and is widely used in transparent plastics products, and Dechlorane Plus, a flame retardant that’s added to plastic coatings and electrical wires. All three chemicals have been shown to persist in the natural environment and bioaccumulate up the food chain, and have been linked to health concerns ranging from neurodevelopmental damage to endocrine disruption.

Any ongoing use or production of UV-328 and Dechlorane Plus will harm recyclers in the developing world — especially because countries could not agree on rules for labelling contaminated products. This means that, even though the Stockholm Convention now bans the recycling of products containing UV-328 and Dechlorane Plus, recycling workers could unwittingly accept plastics containing these chemicals into their workshops.

separate study from IPEN found UV-328 in recycled plastic pellets from nearly two dozen different countries, suggesting that UV-328 travels into recycled products even if they were never meant to contain the additive.

recent study she helped conduct with IPEN found alarming Dechlorane Plus contamination in and around e-waste recycling sites in Thailand, where much of the world’s plastic waste is exported. The study showed that a group of 40 Thai recycling workers had blood serum concentrations of Dechlorane Plus that were more than 39 times higher than those of a control group.

The getting of toxic chemicals from recycled plastic into recycled products is going to be a problem.