New research indicates that nanoparticles in common household cleaners could be a significant source of indoor air pollution, potentially increasing cancer risks.
Pandora Dewan reports for Newsweek.
In short:
- Nanomaterials in cleaners and sprays, including silver, copper, and zinc, can resettle and become airborne long after initial use.
- The study involved an air-controlled chamber experiment showing high resuspension rates of these particles, especially in carpeted areas.
- Children are particularly vulnerable due to higher particle concentrations at lower heights and frequent floor contact.
Key quote:
"If an adult is walking in a room, and steps on some of these deposited particles, we found that the particles will be re-suspended in the air and rise as high as that person's breathing zone."
— Gediminas Mainelis, professor, department of environmental science at Rutgers
Why this matters:
As consumers, we often scrutinize the labels of our cleaning products for harmful chemicals, but a lesser-known concern might be just as pressing: the presence of metal nanoparticles. These minuscule particles are increasingly used in various products for their antimicrobial properties and ability to enhance cleaning efficiency. However, their small size allows them to be easily airborne, potentially leading to indoor air pollution. Exposure to certain indoor air pollutants such as particulate matter and nitrogen dioxide and some heavy metals is linked to child obesity.
Learn more: How to shop for cleaning products - while avoiding toxics.
