Environmental Health

Table 2 Spearman’s correlation coefficients of air pollutants and weather conditions

From: Associations between short-term exposure to gaseous pollutants and pulmonary heart disease-related mortality among elderly people in Chengdu, China

	SO₂	NO₂	CO	O₃	PM_2.5	Temperature	Humidity	AP
SO₂	1
NO₂	0.474 ^a	1
CO	0.615 ^a	0.678 ^a	1
O₃	−0.047 ^a	− 0.195 ^a	− 0.383 ^a	1
PM_2.5	0.622 ^a	0.785 ^a	0.817 ^a	−0.205 ^a	1
Temperature	−0.084 ^a	−0.431 ^a	− 0.474 ^a	0.680 ^a	− 0.462 ^a	1
Humidity	−0.446 ^a	−0.137 ^a	− 0.058 ^a	−0.428 ^a	− 0.190 ^a	−0.078 ^a	1
AP	0.079 ^a	0.365 ^a	0.363 ^a	−0.596 ^a	0.335 ^a	−0.851 ^a	−0.002	1

^aP < 0.05
Abbreviations: SO₂ sulfur dioxide, NO₂ nitrogen dioxide, CO carbon monoxide, O₃ ozone, PM_2.5 particulate matter less than 2.5 μm in aerodynamic diameter; AP, atmospheric pressure

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ISSN: 1476-069X

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