Chlorinated Polyfluoroalkyl Ether Sulfonic Acids (Cl-PFESAs) Are Associated with Eye Diseases in Humans and Eye Toxicity in Zebrafish.

Evidence from animal experiments has shown that chlorinated polyfluoroalkyl ether sulfonic acids (Cl-PFESAs) can induce vision dysfunction in zebrafish. However, environmental epidemiological evidence supporting this hypothesis remains limited. In our case-control study, samples collected from 270 individuals (135 controls and 135 cases) from the Isomers of C8 Health Project data were analyzed for Cl-PFESAs.

Oxidation Mechanism and Toxicity Evolution of Linalool, a Typical Indoor Volatile Chemical Product.

Linalool, a high-reactivity volatile chemical product (VCP) commonly found in cleaning products and disinfectants, is increasingly recognized as an emerging contaminant, especially in indoor air. Understanding the gas-phase oxidation mechanism of linalool is crucial for assessing its impact on atmospheric chemistry and human health. Using quantum chemical calculations and computational toxicology simulations, we investigated the atmospheric transformation and toxicity evolution of linalool under low and high NO/HO· levels, representing indoor and outdoor environments.