Microplastics and nanoplastics, collectively referred to as MNPs, are synthetic polymer particles that come from both the intentional manufacture of small plastic particles (eg, glitter) and the breakdown of larger plastic items.
Microplastics and nanoplastics, collectively referred to as MNPs, are synthetic polymer particles that come from both the intentional manufacture of small plastic particles (eg, glitter) and the breakdown of larger plastic items.
This report updates Health Risk Assessment: Microplastics prepared by PHF Science for the Ministry of Health in 2022. It draws on more than 3,000 peer-reviewed studies examining MNP exposure and human health risks. While the report does not establish direct evidence of adverse health outcomes in humans, it identifies microplastics and nanoplastics as a credible emerging risk that warrants further research and monitoring.
The report recommends a precautionary approach to managing the potential risks of MNPs. It highlights the importance of reducing sources of plastic pollution and establishing national monitoring programmes for MNPs across environmental domains (air, water, soil and biota, including food) and human populations to help address key evidence gaps.
Related reports:
- Stocktake of Microplastics and Nanoplastics in Soil, Water and Air
- Health Risk Assessment: Microplastics (2022) prepared by PHF Science for the Ministry of Health