Table 2

Pearson correlation coefficients between air pollution variables in São Paulo, Brazil, November 1992 to September 1994

	SO₂	NO₂	CO	O₃
PM₁₀	0.72	0.40	0.63	0.001^2-150
SO₂		0.37	0.65	0.08^2-150
NO₂			0.35	0.25
CO				−0.16

↵2-150 Correlations not significant.