Table 4.
Additional percent excess risk in respiratory mortality associated with 10μg/m3 increase in air pollutants at the 4-day moving average by greenness quartiles within 250m.
| Mortality | Air pollutant | Quartile 1 (lowest) | Quartile 2 | Quartile 3 | Quartile 4 (highest) | p for trend |
|---|---|---|---|---|---|---|
| Total respiratory | PM2.5 | Reference | −6.52 (−14.90, 1.91) | −7.86 (−16.30, 0.67) | −5.13 (−13.70, 3.49) | 0.281 |
| PM10 | Reference | −1.81 (−7.74, 4.16) | −2.49 (−8.42, 3.48) | −2.24 (−8.32, 3.88) | 0.471 | |
| NO2 | Reference | −3.88 (−12.50, 4.80) | −9.12 (−17.80, −0.32) | −4.06 (−12.70, 4.61) | 0.287 | |
| O3 | Reference | −9.79 (−18.00, −1.54) | −9.49 (−17.70, −1.18) | −8.48 (−16.70, −0.20) | 0.070 | |
| Pneumonia | PM2.5 | Reference | −7.33 (−17.80, 3.25) | −9.57 (−20.20, 1.13) | −11.90 (−22.60, −1.10) | 0.034 |
| PM10 | Reference | −1.00 (−8.25, 6.30) | −2.31 (−9.45, 4.88) | −6.01 (−13.60, 1.58) | 0.105 | |
| NO2 | Reference | −3.23 (−13.90, 7.54) | −8.19 (−19.00, 2.74) | −10.50 (−21.30, 0.36) | 0.041 | |
| O3 | Reference | −10.60 (−20.70, −0.46) | −12.00 (−22.00, −1.88) | −15.00 (−25.10, −4.72) | 0.006 | |
| COPD | PM2.5 | Reference | −6.74 (−21.80, 8.58) | −4.69 (−19.90, 10.80) | 10.30 (−5.40, 26.30) | 0.175 |
| PM10 | Reference | −3.06 (−13.90, 7.89) | −3.09 (−14.60, 8.58) | 7.02 (−4.36, 18.50) | 0.237 | |
| NO2 | Reference | −6.39 (−22.20, 9.63) | −6.43 (−22.30, 9.74) | 12.00 (−3.47, 27.70) | 0.098 | |
| O3 | Reference | −7.90 (−22.90, 7.34) | −1.99 (−17.70, 14.00) | 4.66 (−10.40, 19.90) | 0.385 |
Abbreviations: PM2.5=particulate matter ≤2.5μm in aerodynamic diameter; PM10=particulate matter ≤10μm in aerodynamic diameter; NO2=nitrogen dioxide; O3=ozone; COPD=chronic obstructive pulmonary disease.