Table 2 Descriptive Statistics for PM10, SO2, NO2, Temperature and Relative Humidity in Wuhan, 2007–2009.

From: The short-term effects of air pollutants on respiratory disease mortality in Wuhan, China: comparison of time-series and case-crossover analyses

 MeanStandard DeviationIQRMinQ1Q2Q3Max
PM10 (μg/m3)113.8154.3572.0018.0074.00106.00146.00567.00
SO2 (μg/m3)52.0430.43358.0031.0045.0066.00267.00
NO2 (μg/m3)54.4021.6327.2019.2038.4049.6065.60153.60
Temperature (°C)18.069.4716.30−2.79.819.4526.135.30
Relative humidity (%)7013182161707997