Table 1 Characteristics and correlations of monthly average concentration of ambient pollutants in Beijing, 2006-2010
From: Ambient air pollution and adverse birth outcomes: a natural experiment study
Pollutants | Concentration | Correlation coefficients | |||||||
|---|---|---|---|---|---|---|---|---|---|
Mean | Std dev | Min | Max | SO2 | NO2 | CO | PM10 | ||
SO2 (ug/m3) | 37.52 | 32.03 | 8.00 | 142.00 | SO2 | 1.00 | 0.64 | 0.87 | 0.45 |
NO2 (ug/m3) | 58.07 | 13.10 | 23.00 | 83.00 | NO2 | 0.64 | 1.00 | 0.78 | 0.55 |
CO (mg/m3) | 1.73 | 0.68 | 0.80 | 3.90 | CO | 0.87 | 0.78 | 1.00 | 0.45 |
PM10 (ug/m3) | 134.72 | 35.16 | 69.00 | 264.00 | PM10 | 0.45 | 0.55 | 0.45 | 1.00 |