Environmental Health

Table 2 Spearman's correlations between daily air pollutants and weather conditions in Beijing 2007

From: Gaseous air pollution and emergency hospital visits for hypertension in Beijing, China: a time-stratified case-crossover study

	PM₁₀	SO₂	NO₂	Temperature
SO₂	0.46^a
NO₂	0.64^a	0.65^a
Temperature	0.04	-0.68^a	-0.28^a
Humidity	0.28^a	-0.12^a	0.25^a	0.21^a

^a P < 0.05

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ISSN: 1476-069X

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