Table 1.
Descriptive statistics for daily all-cause mortality of the very elderly (subjects ≥75 years of age), air pollution, and meteorological parameters measured in urban and suburban areas of Florence and Livorno during the warmest period of the year (May–October) from 2006 to 2008. Mean, standard deviation (SD), and 10th, 75th, and 90th percentiles are shown.
| Variables | Unit | Inland plain city: Florence | Coastal plain city: Livorno | ||||||
|---|---|---|---|---|---|---|---|---|---|
| Mean (±SD) | 10th | 75th | 90th | Mean (±SD) | 10th | 75th | 90th | ||
| Mortality age ≥75 years | N | 7.0 (±2.7) | 4 | 9 | 11 | 3.5 (±2.0) | 1 | 5 | 6 |
| Air pollution | |||||||||
| SO2 | µg m−3 | 1.6 (±0.8) | 0.8 | 1.9 | 2.6 | 4.3 (±3.9) | 0.7 | 6.0 | 9.5 |
| NO2 | µg m−3 | 38.1 (±11.9) | 23.5 | 45.4 | 52.8 | 31.5 (±7.2) | 23.4 | 35.2 | 40.1 |
| CO | µg m−3 | 0.6 (±0.2) | 0.4 | 0.7 | 0.8 | 0.5 (±0.1) | 0.4 | 0.6 | 0.7 |
| O3 | µg m−3 | 70.1 (±20.4) | 42.9 | 83.3 | 95.7 | 76.0 (±18.0) | 52.1 | 87.9 | 99.4 |
| PM10 | µg m−3 | 30.6 (±11.3) | 18.6 | 35.3 | 43.4 | 27.7 (±7.9) | 19.4 | 31.2 | 37.4 |
| Meteorology | |||||||||
| Urban | |||||||||
| T air | °C | 20.6 (±3.8) | 15.6 | 23.9 | 25.7 | 20.4 (±3.3) | 16.1 | 23.2 | 24.7 |
| RH | % | 40.1 (±13.3) | 24.6 | 48.2 | 57.2 | 50.0 (±12.6) | 31.9 | 58.4 | 64.5 |
| V 10 | m s−1 | 1.7 (±0.7) | 0.9 | 1.9 | 2.2 | 2.0 (±0.6) | 1.1 | 2.3 | 2.9 |
| T mrt | °C | 21.1 (±5.9) | 12.7 | 25.7 | 28.1 | 21.2 (±5.1) | 13.8 | 25.1 | 26.9 |
| Suburban | |||||||||
| T air | °C | 21.9 (±4.2) | 16.4 | 25.5 | 27.8 | 22.6 (±3.6) | 17.9 | 25.4 | 27.3 |
| RH | % | 42.4 (±13.2) | 25.8 | 50.0 | 59.6 | 61.1 (±16.6) | 39.4 | 72.4 | 84.1 |
| V 10 | m s−1 | 3.1 (±0.7) | 2.2 | 3.5 | 3.9 | 5.5 (±2.5) | 3.5 | 5.8 | 8.3 |
| T mrt | °C | 22.5 (±6.3) | 13.6 | 27.3 | 30.0 | 23.2 (±5.2) | 16.0 | 26.9 | 29.1 |
T air: environmental temperature; RH: relative humidity; V 10: 10 m high horizontal wind speed; T mrt: mean radiant temperature.