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. 2017 Sep 18;12(9):e0184980. doi: 10.1371/journal.pone.0184980

Fig 2. Changes in environmental factors (temperature, humidity and atmospheric pressure) in the underground pedestrian space.

Fig 2

(A) Changes in temperature (°C). (B) Changes in humidity (%). (C) Changes in atmospheric pressure (hpa). Left and right panels show the daily and monthly changes, respectively. Asterisks indicate a significant difference (p<0.05) between bars connected by lines.