Variation in oxidative potential of fine particulate matter and its association with chemical constituents at a regional site in India.

Fine particulate matter (PM) constituents are greatly affected by site-specific emission sources and are one of the main reasons for oxidative stress that leads to cardiovascular ailments. This study investigated the temporal, seasonal, and episodic variations in the oxidative potential (OP) of PM and its association with chemical components. Additionally, we have also examined the effect of filter substrates on OP.