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Fig. 1 | Environmental Health

Fig. 1

From: Short-term attributable risk and economic burden of hospital admissions for anxiety disorders due to air pollution: a multicity time-stratified case-crossover study

Fig. 1

Spearman’s correlation coefficients between air pollutants and meteorological factors. The correlation strength is expressed by colour intensity in the graph: a greater correlation corresponds to a darker colour, while a correlation closer to 0 results in a lighter shade. *P < 0.05, **P < 0.01, and ***P < 0.001

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Environmental Health

ISSN: 1476-069X