Scientists detect two per- and polyfluoroalkyl substances (PFAS) in plastic food storage bags; study assesses PFAS in 119 single-use food packaging and tableware samples from around the world and detectes PFAS in 54%; two reviews raise awareness of PFAS impact on human liver health and safety issues connected with the PFAS substitutes – polyfluoroalkyl phosphate esters (PAPs); scientist calls for more research to assess combined environmental effect of microplastics and PFAS
Minderoo Foundation systematically maps human health effects from plastic-associated chemicals
Interactive and openly available, the Plastic Health Map summarizes human health outcomes of certain plastic-associated chemicals and particles as published by peer-review articles between 1960 and 2021; includes more than 3500 studies for 1557 chemicals; identifies gaps, including only 30% of chemicals have been investigated for health impacts, few studies in low-income countries
Two studies associate microplastic exposure with cancer
Review of occupational health studies finds workplace exposure to polyvinyl chloride (PVC) particles likely induces liver carcinogenicity; research study finds polystyrene nanoplastics to speed up ovarian cancer development in mice
Scientists detect microplastics in amniotic fluid, effects on testicular aging
Two studies investigate microplastic presence or effects in female and male reproductive organs; small cohort study finds low number of microplastics to be present in human amniotic fluid besides the placenta; in vitro and mice in vivo study reports microplastics induce premature testicular aging and identifies underlying pathways
Microplastics can lead to behavioral changes in mice
Scientists find polystyrene microplastics reduce cell viability, translocate in the body, modify mice behavior, and change their liver and brain immune markers after short-term exposure; effects potentially age-dependent; two reviews summarize nano- and microplastic impacts on fertility and potential implications
Researchers detect microplastics in human semen and heart
Four recent studies assess microplastics: in human semen, heart, from baby food containers, and suitability of in vitro models to investigate human health effects; find microplastics in six out of ten semen samples, find impacts on semen quality; samples from cardiac surgery patients contain microplastics in heart and surrounding tissue; billions of nano- and microplastics released from plastic baby food containers; outline challenges and recommendation of studying plastic particles in vitro
Nanoplastics affect gene expression in the placenta and reproductive health, scientists find
Study using perfused human placental tissue demonstrates polystyrene nanoplastics affect expression of inflammation and iron homeostasis-related genes; review summarizes that small plastic particles can enter reproductive organs and affect reproductive health, however further research needed to verify the results and assess mechanisms of reproductive toxicity
California considering stronger controls of microplastics
California Department of Toxic Substances Control proposes adding microplastics to its Candidate Chemicals List under the state’s Safer Consumer Products Program due to potential harmful impacts on human health and the environment; workshops for the public scheduled for June and July.
Microplastics: recent insights into human exposure, cellular uptake, cancer metastasis
Researchers report plastic fragments may exacerbate breast cancer metastasis; review summarizes nanoplastic uptake into human cells; studies find occupational microplastics exposure can be reduced by wearing face masks; millions of micro- and nanoplastics are released during 30-second food blending; scientists more worried about microplastic impacts on the environment than humans
Report outlines how plastic production harms human health, environment, economy
Minderoo-Monaco Commission on Plastics and Human Health publishes extensive report summarizing plastics’ effects across life cycle on human health, environment, and the economy; health effects cost society hundreds of billions every year; report includes actions for “governments and industries to minimize the negative consequences of global plastic contamination”