Effective sampling duration in determining PAHs and NPAHs concentration in PM2.5 and PM10 glass filters

Previous studies have shown significant differences in particulate matter (PM) sampling and filter extraction efficiency between techniques used for chemical composition of the extracted PM. Consequently, data from various study are often difficult to compare due to the differences in experimental design, sampling duration and extraction methods. It remains technically challenging, partly owing to the limited mass of collectable atmospheric PM and its chemical contents. Additionally, little is known about how filter area size influences the extraction efficiency for PAH/NPAHs. The current study was conducted to investigate the effect of sampling duration and extraction efficiency of different filter area sizes on the concentrations of PAHs and NPAHs that can be detected using HPLC with fluorescence and Chemiluminescence detection.

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