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Distributions and correlation of 2004–2008 pollutant exposure averages
| Spearman correlation coefficient (95% CI) | ||||||||
|---|---|---|---|---|---|---|---|---|
| unit | N | Median | IQR width | Range | PM2.5 | EC | O3 | |
| PM2.5 | μg/m3 | 2319 | 9.9 | 1.3 | 2.0–15.9 | 1 | ||
| EC | μg/m3 | 2321 | 0.44 | 0.14 | 0.15–1.43 | 0.45 (0.41 to 0.48) | 1 | |
| O3 | ppb | 2584 | 38.4 | 1.8 | 24.4–50.7 | −0.16 (−0.20 to −0.12) | −0.29 (−0.32 to −0.25) | 1 |
EC, elemental carbon; PM2.5, 5-year average offine particulate matter.
