Exploring the Correlation of Particulate PAHs, Sulfur Dioxide, Nitrogen Dioxide and Ozone, A Preliminary Study

摘要

The correlation of particulate PAHs, sulfur dioxide, nitrogen dioxide and ozone were examined. The pollution scenario of particulate PAHs, sulfur dioxide, nitrogen dioxide and ozone is also briefly presented as supplementary information. Both sulfur dioxide and nitrogen dioxide were found to have significant positive correlations with total particulate PAHs as well as with most individual PAH species studied, suggesting they mostly share the same common emission source and transportation pattern. On the other hand, ozone was observed to selectively have a strong negative correlation with several PAH species, namely BgP, BaP, BaA, Pyr and Ace, probably due to the ozonolysis reaction of these species.