Statistical properties of 3-clique and 4-clique structure.

This table reports the summary statistical properties of the 3-clique and 4-clique subgraphs extracted from the correlation matrix based upon Planar Maximally Filtered Graph (PMFG). For each pollutant we report the number of the 3-clique and 4-clique subgraphs belongs to 1-4 administrative provinces respectively.