From: Power estimation using simulations for air pollution time-series studies
Pollutant | Mean | Standard Deviation | 25th Percentile | Median | 75th Percentile | Maximum | Skewness* | Number of days missing for moving average of lags 0-2 |
---|---|---|---|---|---|---|---|---|
PM2.5 (μg/m³), 24-h average | 19.42 | 9.35 | 12.50 | 17.54 | 24.76 | 53.24 | 1.00 | 31 |
Total water- soluble PM2.5 metals (μg/m³), 24-h average | 0.03 | 0.03 | 0.01 | 0.02 | 0.04 | 0.20 | 2.07 | 58 |
Elemental carbon (EC) (μg/m³), 24-h average | 2.26 | 1.74 | 1.26 | 1.88 | 2.60 | 15.61 | 2.83 | 22 |
Carbon monoxide (CO) (ppmV), daily 1-h maximum | 1.47 | 1.30 | 0.60 | 0.98 | 1.81 | 9.42 | 2.27 | 44 |