The residence time for the most strongly correlated PMFG filtered 3-cliques and 4-cliques.

<p>The filled circles in different colors (blue, red, green, orange, purple) are 5 equally increased segments of the number of days the clique lasts throughout the year. Left panel is the six pollutants graphed from the most strongly correlated 3-cliques and right panel is based on the most strongly correlated 4-cliques. In each plot, from (a) to (f) are PM_2.5, PM₁₀, CO, NO₂, O₃ and SO₂ respectively.