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Microplastics, seafood and human health

Greenpeace UK releases report on microplastics in seafood; compiles most recent academic research; recommends banning mircobeads and generally applying precautionary principle

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EFSA: Draft opinion on NMDR open for consultation

European Food Safety Authority’s (EFSA) draft opinion reviews literature on assessment of non-monotonic dose responses (NMDRs), finds lack of standards for statistical approaches; suggests stepwise approach for ambiguous ‘apparent’ NMDRs; approach applied in two case studies finds no NMDR for bisphenol A (BPA) but does for di(2-ethylhexyl)phthalate (DEHP); open for comments until February 4, 2021

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Stakeholders discuss waste management challenges of plastics

Publications from government, academia, civil society organizations, and consultancies paint problematic picture of a circular plastics economy; plastic packaging waste per person found to increase over last decade; low percentage of plastic produced is effectively recycled; pyrolysis (a type of chemical recycling) of plastics produces 9x more emissions than mechanical recycling; “biodegradable” and “compostable” plastics found to not break down in home compost systems

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Microplastics impacts on the reproductive system and offspring

Scientists report human-relevant polystyrene (PS) microplastic concentrations change mice placental metabolism; show nanoplastics have variable effects on placental enzymes using simulations; find pre- and postnatal PS microplastic exposure affects male mice testis development and fertility; recommend future research to analyze multigenerational effects

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Studies report on bisphenol exposure and health effects

Review summarizes plastic-associated bisphenol A (BPA) sources, exposure, and human health risks; dietary bisphenol exposure via packaged food consumption in Saudi Arabia is potential human health concern; review discusses bisphenols’ effects on the cardiovascular system and recommends human-relevant studies with bisphenols other than BPA; consensus scoring analysis identifies endocrine-disrupting food contact chemicals potentially interacting with nuclear receptors