We can't find the internet
Attempting to reconnect
Something went wrong!
Hang in there while we get back on track
Mask Wearers at Risk of Inhaling Respirable Hazards from Leave-On Facial Cosmetics
AI summary Read the abstract
Researchers investigated the inhalation risks from cosmetic face powders, particularly when wearing masks, finding that masks significantly increase exposure to inhaled mineral particles and primary microplastics from these products. Soluble chemical components like organic UV filters and preservatives were released more readily in respiratory tract fluid than in digestive fluid. The findings suggest that the combination of cosmetic powder use and mask wearing may pose underappreciated respiratory health concerns.
Previous research has widely overlooked the respiratory risks associated with cosmetic powder, a type of mixed particulate matter with intricate chemical compositions, especially in the context of wearing masks. This study investigated the inhalation risks posed by five face powders, focusing on both particulate matter (minerals and primary microplastics) and soluble components (preservatives and organic UV filters). Wearing masks significantly increased the inhalation risk of face powders, with exposure levels influenced by factors such as particle size, density, and composition. Additionally, different samples demonstrated irregular behavioral patterns when exposed to various human tissue environments. Soluble components analysis revealed that multiple additives dissolved in six body fluids, with a higher degree of release observed in the respiratory tract fluid compared to the digestive tract fluid. The alveoli may serve as a specific target for exposure to organic UV filters due to the solubilization effect of pulmonary surfactants. These findings revealed the importance of considering both particulate matter and soluble components when assessing respiratory and digestive exposure risks from cosmetic powders. Furthermore, understanding the interactions between cosmetic particles and body fluids, as well as potential synergistic toxic effects, is crucial for ensuring the safety of cosmetic products and safeguarding public health.
More Papers Like This
Wearing Face Masks as a Potential Source for Inhalation and Oral Uptake of Inanimate Toxins: a Scoping Review
AI summary Read the abstract
Researchers conducted a scoping review of 1,003 studies examining face masks as a potential source of inanimate toxin exposure, assessing evidence on chemical compounds and particulates — including microplastics — that may be released from masks during inhalation and oral contact during prolonged wear.
Face Mask: As a Source or Protector of Human Exposure to Microplastics and Phthalate Plasticizers?
AI summary Read the abstract
Researchers tested five types of face masks to determine whether they protect against or contribute to human inhalation of microplastics and phthalate plasticizers. They found that while masks filter out some airborne microplastics, they also release their own microplastic fibers and contain phthalate chemicals that wearers can inhale. The study suggests face masks have a dual role as both protectors and sources of microplastic and chemical exposure.
Exudation of microplastics from commonly used face masks in COVID-19 pandemic
AI summary Read the abstract
Researchers simulated real-world mask usage and found that commonly used face masks — including surgical and cloth types — shed measurable quantities of microplastic particles that could be inhaled by the wearer, raising concerns about respiratory exposure during prolonged mask use.
Assessment of inhalation exposure to microplastic particles when disposable masks are repeatedly used
AI summary Read the abstract
Researchers assessed whether reusing disposable medical masks leads to inhalation exposure to microplastics by testing masks under simulated wearing conditions. They found that hand-rubbed new masks released approximately 1.5 times more microplastic particles than untouched ones, and reused masks released even more through physical abrasion. The predominant particles were polypropylene and polyethylene fragments, raising concerns about repeated mask use as a source of microplastic inhalation.
Need for Assessing the Inhalation of Micro(nano)plastic Debris Shed from Masks, Respirators, and Home-Made Face Coverings During the COVID-19 Pandemic
AI summary Read the abstract
Researchers raised concerns about potential inhalation of micro- and nanoplastic particles shed from face masks and respirators during the COVID-19 pandemic, noting a gap in existing quality standards. They called for regulatory attention to respirable plastic debris from protective equipment.
Research digests by email
When a large batch of papers lands in the Atlas, we read through it and send a short write-up of what stood out.