Fine particulate matter (PM2.5) is a complex mixture of air pollutants that may contain hazardous substances and emerging contaminants. It penetrates deep into the lungs, inducing oxidative stress, inflammation, and systemic toxicity, and interacts with O3, NO2, SO2, and organic and inorganic constituents, thereby increasing health risks.
Sarawut Sangkham (Thu,) studied this question.