Table 1.
Daily ambient air pollution, meteorological data, and mortality rates in Guangzhou, China from January 1, 2015 to December 31, 2019.
| Mean | SD | Min | P25 | P50 | P75 | Max | |
|---|---|---|---|---|---|---|---|
| Air pollutant concentration (μg/m3) | |||||||
| PM2.5 | 34.49 | 19.06 | 5.00 | 21.00 | 30.00 | 44.00 | 155.00 |
| PM10 | 55.25 | 27.29 | 9.00 | 36.00 | 48.00 | 70.75 | 212.00 |
| SO2 | 10.43 | 4.41 | 3.00 | 7.00 | 10.00 | 13.00 | 37.00 |
| O3 | 90.10 | 52.31 | 0 | 49.00 | 84.00 | 122.00 | 287.00 |
| NO2 | 46.85 | 19.12 | 8.00 | 34.00 | 42.50 | 55.00 | 168.00 |
| CO | 892.77 | 224.02 | 400.00 | 700.00 | 900.00 | 1000.00 | 2100.00 |
| Meteorological measures | |||||||
| Humidity (%) | 80.29 | 10.31 | 31.00 | 75.00 | 82.00 | 88.00 | 100.00 |
| Temperature (°C) | 22.30 | 5.90 | 3.60 | 17.90 | 23.50 | 27.30 | 31.20 |
| No. of daily deaths (N) | 163 | 61 | 84 | 122 | 139 | 176 | 372 |
| Sex (N) | |||||||
| Male | 92 | 35 | 40 | 69 | 79 | 100 | 220 |
| Female | 71 | 28 | 29 | 52 | 61 | 79 | 190 |
| Age (N) | |||||||
| <64 | 37 | 15 | 12 | 28 | 33 | 41 | 108 |
| 64–75 | 31 | 12 | 10 | 23 | 28 | 35 | 90 |
| ≥75 | 94 | 37 | 41 | 68 | 81 | 108 | 244 |
| Season (N) | |||||||
| Warm | 151 | 59 | 84 | 116 | 128 | 148 | 371 |
| Cool | 171 | 61 | 86 | 130 | 148 | 185 | 372 |
| Cause of death (N) | |||||||
| C00–D48 | 46 | 17 | 17 | 35 | 40 | 48 | 118 |
| E00–E90 | 6 | 4 | 0 | 3 | 5 | 8 | 28 |
| I00–I99 | 63 | 26 | 20 | 45 | 55 | 73 | 164 |
| J00–J99 | 24 | 11 | 6 | 16 | 21 | 28 | 70 |
| V01–Y98 | 9 | 5 | 0 | 5 | 8 | 11 | 30 |
| Other | 21 | 10 | 3 | 15 | 18 | 25 | 70 |
The warm period was from May 1 to September 30, and the cool period was from October 1 to April 30. C00–D48, neoplasms; E00–E90, endocrine, nutritional, and metabolic diseases; I00–I99, diseases of the circulatory system; J00–J99, diseases of the respiratory system; V01–Y98, external causes of morbidity and mortality. SD, standard deviation; P25, 25th percentile; P50, 50th percentile; P75, 75th percentile.