Skip to main content

Table 1 Descriptive statistics of daily pollutant levels, death counts, and meteorological variables from 2000 to 2004

From: Air pollution and mortality in the Canary Islands: a time-series analysis

  Las Palmas de Gran Canaria Santa Cruz de Tenerife
  Mean P50 sd min max Mean P50 sd min max
Air pollutant concentrations           
▪ PM10-24 h (μg/m3) 37.7 29.2 40.6 8.7 612.4 42.3 31.7 41.7 13 622
▪ PM25-24 h(a) (μg/m3) 16.4 13 15.2 2.4 210.6 15.2 11.4 14.3 3.5 227.6
▪ SO2-24 h (μg/m3) 8.1 6.9 4.2 1.5 44.4 14.1 10 12.6 2.3 145.9
▪ NO2-24 h (μg/m3) 45.8 46.4 14.8 7.2 104.7 30.3 26.9 16.4 5.4 93.3
▪ CO-8 h (μg/m3) 0.9 0.7 0.5 0.1 6.8 1.1 1.0 0.7 0.1 4.5
▪ O3-8 h (μg/m3)(b) 37.9 36.6 17.4 4.2 114.8 53.0 52.2 15.1 15.0 101.4
Daily death counts           
▪ Total 7.4 7.0 2.8 0.0 19.0 4.4 4.0 2.2 0.0 14.0
▪ Heart disease 1.7 2.0 1.3 0.0 9.0 0.9 1.0 1.0 0.0 6.0
▪ Respiratory 0.7 0.0 0.9 0.0 5.0 0.4 0.0 0.6 0.0 4.0
Meteorological measures           
▪ Mean Temperature (°C) 21.1 21 2.6 14.4 32.5 21.3 20.8 3.0 13.9 33.6
▪ Relative humidity (%) 65.5 65.8 9.4 22.3 95 62.2 61.8 7.6 31.3 85.8
▪ Barometric pressure (mbar) 1012.6 1008.7 3.45 986.3 1023.7 1014.3 1014.2 3.60 998.8 1026.6
  1. (a) PM2.5 only from 2001 to 2004
  2. (b) Entire annual period