Study investigates quantity and risk of oligomers in PBT

Researchers analyze oligomer in extracts and migrates of polybutylene terephthalate (PBT) food contact articles also comparing levels in food and food simulants; report human exposure to oligomers can exceed daily threshold in some scenarios; express the need for toxicological evaluation of PBT oligomers

Microplastics in humans: current knowledge and potential implications

Review summarizes microplastics abundance and characteristics in human biological samples including current research approaches employed, challenges, and prospects; study indicates microplastics impact human meconium and placenta microbiota; review outlines current evidence on microplastic effects upon exposure during early developmental stage

Microplastics in placentas: occurrence, sources, and effects

Three studies on microplastics and the human placenta; demonstrate particle presence in several intracellular compartments of placentas for the first time; assume breastfeeding and plastic toy usage as microplastic exposure sources to lactating infants; associate placental plastics with reduced fetal growth

Microplastic exposure through drinking cups and human health impacts

Study finds up to 6000 particles/L to be released from disposable drinking cups; scientists estimate humans ingest 37,613–89,294 microplastics through plastic cups use per year; study suggests consumption from plastic containers changes human gut and oral microbiota composition; review concludes that uptake of microplastics carrying pathogens may impact human health

WHO report on potential human health implications of microplastics

World Health Organization (WHO) report assesses human exposure to micro- and nanoplastics via inhalation and diet as well as potential health implications; finds available data of limited use for risk assessment

Biomonitoring provides insights into nonylphenol exposure in Germany

Retrospective analyses of urinary nonylphenol (NP) levels in German students over past 30 years demonstrate omnipresence of NP exposure; scientists recommend using NP metabolites as biomarkers for NP exposure assessment; analysis points to foodstuff as major exposure source

Styrene concentrations in German and Italian refrigerated dairy products

Scientists assess styrene levels in polystyrene food packaging, migration into refrigerated dairy products, in 50% ethanol, as well as factors influencing migration; report styrene migration of 5 to 30 µg/kg food at the best before date; find food contact area, temperature and time rather than fat content influence styrene migration

Studies detect microplastics in bottled and outdoor drinking water

Researchers analyzed microplastics presence in drinking waters; report 7 out of 9 best-selling bottled mineral waters in France contain microplastics; find widespread microplastics contamination of free drinking water refill kiosks across Mexico City

Microplastics detected in human breastmilk and mice fetal thalamus

Two studies assess fetal and infant exposure to plastic particles and impacts on mouse fetuses; detect microplastics in 26 out of 34 human breastmilk samples; report polystyrene particles negatively impact mouse fetuses

What knowledge is missing to derive a microplastic threshold value?

Microplastic experts review mammalian in vivo effect studies and develop non-regulatory health-based screening level value for microplastics in drinking water; scientists provide research recommendations to better understand microplastic toxicity, effect levels, and potential health risks to humans and aquatic ecosystems; review discusses nanoplastics’ role in food allergy