Table 1. Descriptive analysis on the variables under assessment. São José dos Campos, Brazil, 2005-2009.

	Mean	SD	Minimum	Maximum	IQD
Deaths	0.56	0.77	0	5
PM10 (mg/m3)	23.96	12.41	6	100	15
SO2 (mg/m3)	3.45	2.57	0.5	27	2
O3 (mg/m3)	80.62	32.24	5	209	41
Humidity (%)	83.52	7.25	54.0	100
Temperature (ºC)	20.7	2.45	13.7	27.9
Pressure (mbar)	948.2	3.33	938	960

^SD = standard deviation

^IQD = interquartile difference.