Researchers at Virginia Tech have found that nanoplastics in drinking water may strengthen bacterial biofilms, making harmful bacteria more resistant to disinfectants and harder to eliminate from water systems. The study showed that exposure to nanoplastics alters bacterial behavior, leading to thicker, more protective biofilms and increased resistance to cleaning processes. These changes could allow disease-causing bacteria to survive longer in drinking water infrastructure. The findings raise concerns about the indirect health risks of nanoplastics and highlight the need for further research to better understand their impact on water safety and public health.
