1 research outputs found
Synthetic Antioxidants as Contaminants of Emerging Concern in Indoor Environments: Knowns and Unknowns
Synthetic antioxidants, including synthetic phenolic
antioxidants
(SPAs), amine antioxidants (AAs), and organophosphite antioxidants
(OPAs), are essential additives for preventing oxidative aging in
various industrial and consumer products. Increasing attention has
been paid to the environmental contamination caused by these chemicals,
but our understanding of synthetic antioxidants is generally limited
compared to other emerging contaminants such as plasticizers and flame
retardants. Many people spend a significant portion (normally greater
than 80%) of their time indoors, meaning that they experience widespread
and persistent exposure to indoor contaminants. Thus, this Perspective
focuses on the problem of synthetic antioxidants as indoor environmental
contaminants. The wide application of antioxidants in commercial products
and their demonstrated toxicity make them an important family of indoor
contaminants of emerging concern. However, significant knowledge gaps
still need to be bridged: novel synthetic antioxidants and their related
transformation products need to be identified in indoor environments,
different dust sampling strategies should be employed to evaluate
human exposure to these contaminants, geographic scope and sampling
scope of research on indoor contamination should be broadened, and
the partition coefficients of synthetic antioxidants among different
media need to be investigated