An exploratory study for the implementation of the oxidative potential assessment of particulate matter in Portugal

Particulate matter (PM) is a harmful air pollutant that damages human health by inducing oxidative stress through the excessive generation of reactive oxygen species (ROS). Oxidative Potential (OP) is a proposed metric to measure PM's capacity to generate ROS (Almetwally et al., 2020; Jiang et al., 2019). This study aims to implement the OPDTT assessment methodology at C2TN (Portugal). A set of PM2.5 samples was evaluated using a widely used protocol (Chirizzi et al., 2017), and the results were compared to the values previously obtained at DISTEBA, where the protocol is well established. Moreover, the use of the reference material SRM 1648 (Urban Particulate) as a standard for determining OPDTT was also evaluated. Analyzing a 10 mg.L-1 solution of the reference material, it was possible to conclude that the standard solution presented an average DTT activity (normalized to the mass) value of 27.60 ± 3.79 pmol.min-1.μg-1.

URI

http://hdl.handle.net/10400.26/49448

Citation

Vicente, C.; Gonçalves, S.; Gamelas, C.; Almeida, S. M.; Bartolomeo, A. R.; Guascito, M. R.; Contini, D.& Canha, N.(2023). An exploratory study for the implementation of the oxidative potential assessment of particulate matter in Portugal. In The Ninth International WeBIOPATR 2023 Workshop and Conference "PARTICULATE MATTER: RESEARCH AND MANAGEMENT"