Low-cost preventative measures can effectively mitigate microplastic release from scientific research facilities in Antarctica

Microplastic release in Antarctica is an issue of increasing concern, despite the limited human presence in the region. This study estimates the annual release of microplastics from the wastewaters of scientific facilities through the use of personal care products and laundering. Furthermore, it analyses the most cost-efficient policy interventions to target this pollution. The study has estimated a potential release of 238 kg per year, which is negligible on a continental scale but could have substantial local environmental impacts. A comprehensive cost-efficiency analysis demonstrates that microplastic release can be effectively mitigated through low-cost preventative measures, such as installing washing machine filters and banning hygiene products containing microbeads. Furthermore, the implementation of wastewater treatment systems is suggested as a crucial and long-term cost-effective solution for treating wastewater effluent and removing other pollutants from the Antarctic region. These results provide a framework to inform policy decisions on microplastic release in Antarctica and lay the foundation for improved environmental protection strategies in this sensitive region.