Table 3 Correlations among pollutants and weather variables
From: Air pollution and lung function among susceptible adult subjects: a panel study
|  | PM2.5 | PM10–25 | PM10 | NO2 | O3 | CO | SO2 | T | RelHum | BarP |
|---|---|---|---|---|---|---|---|---|---|---|
PM 2.5 | 1 | Â | Â | Â | Â | Â | Â | Â | Â | Â |
PM 10–25 | 0.34 | 1 |  |  |  |  |  |  |  |  |
PM 10 | 0.93 | 0.61 | 1 | Â | Â | Â | Â | Â | Â | Â |
NO 2 | 0.43 | 0.51 | 0.45 | 1 | Â | Â | Â | Â | Â | Â |
O 3 | -0.51 | 0.31 | -0.36 | 0.17 | 1 | Â | Â | Â | Â | Â |
CO | 0.67 | -0.09 | 0.55 | 0.05 | -0.87 | 1 | Â | Â | Â | Â |
SO 2 | 0.34 | -0.16 | 0.21 | 0.01 | -0.61 | 0.65 | 1 | Â | Â | Â |
T | -0.31 | 0.56 | -0.10 | 0.36 | 0.79 | -0.74 | -0.56 | 1 | Â | Â |
RelHum | 0.17 | -0.37 | 0.06 | -0.36 | -0.62 | 0.54 | 0.43 | -0.48 | 1 | Â |
BarP | 0.65 | 0.24 | 0.56 | 0.47 | -0.15 | 0.28 | 0.18 | -0.15 | -0.17 | 1 |