FACTORS (81.8%)	Variables	Loadings
Factor 1-26.3% Combustion Products (Stacks, Traffic)	CO	0.930
	N₂O	0.889
	NO₂	0.918
Factor 2—18.5% Dust	PM Fine (PM_2.5)	0.970
Factor 2—18.5% Dust	PM Respirables (PM₁₀)	0.973
Factor 3—16.3% VOCs (Traffic, Petrochemicals, Natural Gas)	CH₄	0.919
Factor 3—16.3% VOCs (Traffic, Petrochemicals, Natural Gas)	CH₃OH	0.929
Factor 4—10.6%	CO₂	0.646
Factor 4—10.6%	NH₃	0.814
Factor 5—10.1% SO₂ (Stacks)	SO₂	0.850
Factor 5—10.1% SO₂ (Stacks)	H₂O	0.450