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Biodegradable plastics may bring degradation and toxicity challenges, say scientists

In an opinion piece published in Waste Management scientists emphasize there is no universal biodegradability of plastics in any ecosystem; waste collection systems need adaptation and toxicity testing improvements; experimental study finds leachates of biodegradable plastic items affect mussel early embryo stages development and adult physiological parameters

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US EPA calls for comments on national recycling strategy

US Environmental Protection Agency (EPA) publishes draft strategy focusing on reducing contamination, increasing processing efficiency, improving markets for recycled materials; aims to address set of key problems within current recycling system; open for public comment until December 4, 2020

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Degradation of compostable plastics can increase toxicity, scientists emphasize

Studies analyze biodegradable – including compostable – plastics for their in vitro toxicity and chemical composition; comparison with conventional plastics indicates higher toxicity of compostables which further increases with photodegradation and composting; detect brominated flame retardants in “biodegradable”-labeled food packaging

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Study maps intentionally added substances in plastics

Scientists investigate plastic monomers, additives, and processing aids for their chemical identity, use, and hazard classification; identify >10,000 chemicals; 24% categorized as substances of potential concern of which the majority is not currently subject to management measures; emphasize information gaps regarding substance properties and uses