MIXING RATIO OF SURFACE OZONE IN PARTS PER BILLION STATION SOUTH POLE MONTH JANUARY YEAR 2002 EQUIPMENT DASIBI GMT 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 MEAN MAX DATE 1 29.5 29.6 29.6 29.6 29.6 29.6 29.6 29.6 30.4 31.1 31.8 32.5 32.6 32.6 32.6 31.9 31.1 30.4 29.0 26.8 26.8 26.8 26.1 26.8 29.8 32.6 2 26.8 26.9 26.1 26.1 26.2 26.2 25.4 25.4 25.5 26.2 26.2 25.5 26.9 28.4 29.8 28.5 28.5 28.6 29.1 29.7 29.8 30.0 30.0 29.3 27.5 30.0 3 28.8 28.4 28.1 27.9 27.7 27.5 27.4 27.6 27.7 27.9 28.3 28.4 28.1 28.3 28.1 27.9 27.9 27.7 24.2 20.6 20.4 21.3 22.6 22.3 26.5 28.8 4 21.3 20.9 20.6 19.9 20.1 20.3 20.9 21.9 20.8 19.1 15.1 14.8 15.0 15.0 15.1 15.1 15.1 15.0 14.9 15.1 15.1 14.8 15.5 16.2 17.4 21.9 5 17.5 17.5 17.2 17.3 17.0 17.0 17.5 17.5 18.2 16.4 16.2 16.9 17.2 19.4 22.9 24.6 23.9 22.7 22.7 21.7 20.4 19.4 20.0 20.1 19.2 24.6 6 20.7 20.9 21.6 22.2 22.5 22.8 22.9 22.7 22.4 22.3 22.7 23.0 23.4 23.3 23.1 23.1 23.2 23.4 23.3 23.3 23.7 23.7 21.6 17.8 22.5 23.7 7 17.2 18.0 18.8 18.4 17.1 17.1 16.7 17.3 17.4 17.3 17.1 17.0 17.1 17.6 18.0 18.1 20.0 27.4 28.3 29.1 29.4 30.0 29.8 28.3 20.9 30.0 8 27.7 28.0 28.9 29.2 29.1 30.0 28.7 25.9 24.3 24.2 23.9 24.0 23.4 22.9 22.8 22.8 22.9 20.0 22.6 22.6 23.0 24.8 25.9 26.3 25.2 30.0 9 24.6 21.0 20.7 20.6 20.8 21.1 21.4 19.7 20.7 21.8 23.4 24.4 25.1 25.1 25.3 25.4 25.5 25.5 25.8 25.9 26.1 26.3 26.3 25.0 23.6 26.3 10 24.0 24.1 24.3 25.3 25.8 25.1 24.8 25.0 25.2 25.2 24.6 23.7 22.9 23.3 23.3 22.9 22.4 22.3 22.2 22.2 22.1 22.1 22.3 22.1 23.6 25.8 11 21.2 18.8 18.5 18.0 18.9 19.0 19.1 19.8 19.9 20.5 21.5 21.6 21.9 21.2 21.0 21.6 22.5 22.5 22.5 22.4 22.5 22.5 22.5 22.9 21.0 22.9 12 22.5 18.3 15.8 15.7 16.2 16.9 17.5 17.7 19.1 20.4 20.5 20.4 21.8 22.7 23.6 23.7 23.0 22.8 22.2 21.0 18.9 17.5 21.2 16.9 19.8 23.7 13 16.2 16.4 16.8 17.1 16.5 16.0 15.5 15.3 16.6 16.9 16.7 17.0 16.6 16.5 17.1 18.2 20.2 22.5 24.7 24.9 25.3 25.3 23.9 23.3 19.0 25.3 14 22.7 22.5 22.3 22.5 22.6 23.2 23.9 23.8 23.9 23.7 23.7 24.1 25.7 25.8 25.6 25.2 23.2 20.4 19.3 19.0 17.0 16.7 17.4 18.6 22.2 25.8 15 19.6 20.6 21.2 20.1 20.3 19.4 20.7 25.0 30.2 30.8 26.9 23.6 22.3 22.1 23.2 23.8 24.2 24.4 24.4 24.7 24.9 25.2 25.5 25.4 23.7 30.8 16 25.1 24.8 24.4 24.6 24.3 23.6 23.0 22.0 21.8 22.0 21.8 21.9 21.6 21.8 22.1 22.3 22.9 23.2 23.5 23.3 23.3 23.5 23.8 24.1 23.1 25.1 17 23.9 23.5 23.1 21.2 19.4 17.9 17.6 18.0 18.0 19.0 20.9 21.5 21.5 21.9 23.0 22.9 21.9 22.3 23.6 24.2 24.4 24.4 24.0 23.9 21.8 24.4 18 23.5 23.5 23.4 23.4 23.0 22.0 21.4 20.8 20.9 21.1 21.6 22.5 23.8 24.4 25.4 26.4 27.4 28.6 28.9 28.6 28.0 27.5 27.0 26.2 24.6 28.9 19 25.0 24.2 23.9 23.4 23.0 22.7 22.4 21.6 20.9 21.2 21.7 21.9 21.5 21.3 20.9 20.0 19.5 19.6 18.7 18.6 18.0 17.4 17.7 18.4 21.0 25.0 20 18.3 18.4 19.1 19.3 19.2 18.9 19.0 18.8 18.4 17.8 18.1 17.5 17.3 17.7 17.7 18.1 17.8 17.3 17.2 17.5 17.4 17.5 16.9 17.2 18.0 19.3 21 16.8 16.1 16.2 16.4 16.2 17.2 17.4 16.5 16.2 17.1 16.7 16.7 16.0 16.2 16.4 16.5 16.8 17.0 16.6 18.0 25.9 28.2 28.7 28.6 18.5 28.7 22 28.3 27.5 26.7 26.9 27.5 28.2 27.7 27.5 26.2 25.2 25.2 24.8 24.5 24.4 24.2 24.2 23.8 23.6 23.8 24.1 24.4 24.4 24.2 22.8 25.4 28.3 23 21.2 21.3 21.2 22.1 21.8 21.5 21.0 20.7 19.9 19.8 19.8 19.4 18.2 17.2 17.9 18.1 18.1 18.5 18.8 19.4 19.4 19.7 19.4 19.0 19.7 22.1 24 18.0 23.3 24.5 25.6 25.8 25.1 24.3 24.0 24.2 24.5 24.5 24.3 24.0 23.4 23.1 23.3 23.4 24.0 24.0 24.0 23.7 23.5 23.5 24.4 23.9 25.8 25 24.1 24.6 24.8 24.7 24.3 24.6 24.8 19.6 19.8 20.7 19.3 18.3 17.9 17.7 18.1 17.3 15.8 15.7 15.9 16.2 16.5 16.2 16.7 14.9 19.5 24.8 26 13.7 13.3 13.3 13.3 15.0 15.0 14.3 16.0 17.8 21.1 20.9 21.3 21.1 20.4 19.8 20.1 19.6 18.0 17.3 17.6 17.3 17.4 17.9 19.2 17.5 21.3 27 19.4 19.4 19.7 20.0 20.2 20.5 20.5 20.8 20.6 21.1 21.1 20.9 20.3 21.2 21.0 21.2 21.6 23.4 23.1 23.7 23.1 23.5 24.1 24.1 21.4 24.1 28 24.1 24.3 22.1 19.8 19.6 19.5 22.2 22.5 21.9 20.3 18.5 18.1 19.3 19.5 19.1 18.6 19.1 19.7 21.1 21.0 21.0 21.7 21.9 22.2 20.7 24.3 29 22.0 21.6 21.9 22.7 23.6 23.0 22.6 23.2 24.1 25.3 25.5 25.9 26.2 26.6 27.1 27.5 27.5 27.2 26.9 27.2 27.3 27.5 27.7 28.5 25.4 28.5 30 28.8 28.3 28.6 29.1 29.2 29.4 28.1 27.8 26.2 24.9 24.2 24.1 24.1 23.8 23.3 23.2 22.7 23.0 23.0 23.7 23.7 23.7 23.7 23.0 25.4 29.4 31 22.2 23.0 22.6 24.2 24.2 24.5 24.4 24.4 25.0 25.4 25.3 25.2 25.2 25.8 26.0 26.2 26.5 26.5 26.6 25.8 25.8 26.1 26.1 26.2 25.1 26.6 MEAN 22.4 22.2 22.1 22.1 22.2 22.1 22.0 21.9 22.1 22.3 22.1 22.0 22.0 22.2 22.5 22.5 22.5 22.7 22.7 22.6 22.7 22.9 23.0 22.7 22.4 26.1 MIXING RATIO OF SURFACE OZONE IN PARTS PER BILLION STATION SOUTH POLE MONTH FEBRUARY YEAR 2002 EQUIPMENT DASIBI GMT 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 MEAN MAX DATE 1 26.3 26.4 25.7 24.9 26.2 25.5 22.1 20.5 20.2 20.2 20.6 20.6 20.6 20.3 20.3 19.8 19.2 19.2 20.1 20.6 20.9 21.4 21.5 22.5 21.9 26.4 2 24.5 26.9 28.5 29.2 28.5 28.4 28.2 27.8 27.5 27.3 27.3 27.3 27.2 27.2 27.3 27.3 27.2 27.3 27.7 28.7 29.3 30.0 29.9 28.8 27.9 30.0 3 28.3 27.8 27.4 26.2 25.6 25.4 25.3 25.0 24.9 24.9 25.1 25.2 24.9 24.5 24.6 25.0 25.3 25.4 25.3 25.4 24.6 24.8 25.2 25.2 25.5 28.3 4 25.2 24.6 24.1 24.0 24.9 24.7 24.7 24.9 24.6 24.4 23.9 23.6 23.1 22.7 22.1 21.6 21.3 21.4 21.7 22.0 21.7 20.5 21.8 22.1 23.2 25.2 5 22.0 22.1 22.0 21.9 21.8 21.2 21.5 21.6 22.0 22.0 22.0 21.7 21.4 21.2 21.4 21.7 21.7 21.5 21.1 21.2 21.0 21.2 21.6 21.3 21.6 22.1 6 20.6 20.0 19.6 18.8 18.8 18.9 19.2 18.7 18.3 18.3 18.3 18.4 18.7 18.7 18.7 18.3 18.4 18.7 18.8 18.6 18.3 18.1 17.8 17.1 18.7 20.6 7 17.5 18.2 17.7 17.8 17.5 17.9 18.5 18.8 19.1 19.1 19.1 19.1 19.1 18.9 18.9 19.0 18.9 18.7 18.7 18.7 18.8 18.8 18.7 18.2 18.6 19.1 8 18.0 17.8 18.1 18.9 19.2 20.0 20.2 19.4 18.7 17.9 17.3 17.1 17.9 18.0 18.1 18.6 19.1 19.7 20.3 20.4 20.2 20.0 19.5 20.1 18.9 20.4 9 19.9 20.1 20.0 19.4 19.7 20.1 20.3 20.6 20.6 20.5 20.1 19.5 19.4 19.7 19.8 19.7 19.8 20.0 20.3 20.7 20.6 21.2 21.2 20.9 20.2 21.2 10 21.0 21.1 20.9 20.4 20.0 20.1 19.5 19.4 19.6 19.8 20.6 21.1 22.3 22.3 22.6 22.9 23.4 23.9 23.6 23.4 23.6 23.4 23.4 23.3 21.7 23.9 11 23.2 22.1 21.9 21.6 21.5 21.8 22.2 22.4 21.9 21.3 21.0 21.0 20.7 20.4 20.3 19.9 20.1 20.2 20.6 21.0 21.2 21.3 21.3 21.4 21.3 23.2 12 21.4 21.6 21.7 21.6 21.6 21.8 21.9 22.2 22.6 22.5 22.1 21.8 21.5 21.2 21.5 21.6 21.1 21.0 21.1 20.8 21.5 21.8 22.0 21.8 21.7 22.6 13 21.4 21.0 20.9 21.1 20.5 20.2 20.0 19.1 19.2 18.5 18.9 19.2 19.3 18.9 18.7 19.2 19.9 20.0 20.4 20.5 19.7 20.0 20.1 19.7 19.9 21.4 14 20.1 20.2 19.5 19.2 19.1 19.2 20.0 20.4 21.0 21.3 21.4 21.6 21.6 21.3 21.1 20.7 20.0 19.8 19.1 19.3 20.6 21.0 21.2 20.3 20.4 21.6 15 20.4 19.7 20.4 20.9 21.1 20.3 20.6 20.7 21.0 21.1 21.3 21.2 20.8 20.5 20.8 20.6 21.2 21.2 21.3 20.9 20.6 20.4 21.0 21.3 20.8 21.3 16 21.9 21.9 21.9 21.3 22.0 22.4 22.4 22.7 22.4 22.4 22.7 22.5 21.9 21.1 20.2 19.9 19.5 19.6 19.8 20.0 19.9 19.5 18.6 18.3 21.0 22.7 17 19.1 18.1 18.8 19.8 20.8 21.3 21.4 21.5 22.4 22.4 21.8 21.3 21.0 21.3 21.4 20.5 20.3 20.2 19.9 19.5 19.6 19.8 19.6 19.5 20.5 22.4 18 19.0 18.9 19.0 19.2 19.3 19.3 19.2 19.2 19.2 19.7 20.0 20.3 19.9 19.0 19.0 20.2 20.6 20.2 20.4 19.9 20.0 19.8 20.1 20.4 19.7 20.6 19 21.1 20.9 20.5 20.4 20.2 20.3 20.9 21.2 21.2 20.9 20.7 20.6 20.6 20.7 20.9 20.8 20.5 20.4 20.6 20.7 21.1 21.1 21.0 20.9 20.8 21.2 20 21.3 21.3 22.0 22.0 21.3 21.0 20.8 20.9 20.9 21.0 21.0 20.9 20.6 20.5 20.4 20.4 20.5 20.1 20.1 20.1 20.1 20.4 20.8 21.1 20.8 22.0 21 20.9 20.7 20.3 20.0 20.3 20.8 21.1 21.5 21.1 21.4 21.1 21.6 21.3 21.6 21.1 20.8 20.7 20.7 20.7 20.4 20.0 19.4 19.7 20.3 20.7 21.6 22 20.1999.9 19.4 18.9 18.8 20.0 20.1 19.5 19.7 23.3 19.5 19.1 19.2 19.4 19.7 19.4 19.4 19.1 18.9 18.9 18.9 19.2 21.1 19.5 19.6 23.3 23 18.9 18.4 18.9 18.5 18.3 18.4 18.7 19.3 19.6 20.2 20.3 20.1 20.2 19.2 19.0 18.9 18.8 18.8 18.4 17.7 18.2 17.3 17.5 18.0 18.8 20.3 24 18.2 18.5 18.1 17.7 17.4 17.9 18.9 19.2 19.7 19.5 19.5 19.2 19.8 19.9 20.0 20.2 19.9 19.8 19.8 20.1 20.2 20.2 20.0 19.9 19.3 20.2 25 19.9 20.1 20.5 20.2 20.1 20.5 20.2 20.2 20.6 21.0 21.1 21.0 20.8 20.8 21.2 21.2 21.4 21.8 21.8 21.4 21.1 21.4 21.3 21.8 20.9 21.8 26 21.7 21.1 20.9 20.8 20.5 21.1 20.8 20.9 20.6 20.3 20.4 20.8 20.7 20.9 20.4 20.3 20.3 20.3 20.6 20.4 20.8 21.4 22.1 21.7 20.8 22.1 27 21.4 21.4 21.5 21.4 21.3 21.2 21.4 21.3 21.5 21.3 21.0 20.8 21.0 21.7 22.1 22.1 22.2 21.9 21.6 21.6 21.6 21.7 21.4 21.6 21.5 22.2 28 20.8 21.1 21.2 21.5 21.2 21.6 21.2 20.6 20.5 20.9 21.3 21.4 21.6 21.3 21.4 21.4 21.7 22.2 22.3 22.3 21.2 21.2 21.5 21.7 21.4 22.3 MEAN 21.2 21.2 21.1 21.0 21.0 21.1 21.1 21.0 21.1 21.2 21.1 21.0 21.0 20.8 20.8 20.8 20.8 20.8 20.9 20.9 20.9 20.9 21.1 21.0 21.0 22.5 MIXING RATIO OF SURFACE OZONE IN PARTS PER BILLION STATION SOUTH POLE MONTH MARCH YEAR 2002 EQUIPMENT DASIBI GMT 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 MEAN MAX DATE 1 21.8 21.8 21.3 20.4 20.0 19.9 20.5 20.5 20.4 20.1 20.0 19.6 19.5 19.7 20.0 19.7 19.8 19.8 19.7 19.4 19.1 19.1 18.6 18.3 20.0 21.8 2 18.2 18.2 18.5 19.3 19.7 20.3 20.1 21.1 21.5 21.8 21.3 21.1 20.9 21.2 21.7 22.4 22.7 22.7 22.0 21.4 21.1 21.1 21.3 21.0 20.9 22.7 3 20.8 20.1 19.7 19.1 18.7 18.6 19.0 19.1 18.8 19.0 19.2 19.3 19.2 19.7 19.8 19.8 19.9 20.5 21.1 21.4 21.6 21.4 21.4 21.3 19.9 21.6 4 21.5 21.0 21.5 21.5 21.2 21.0 21.1 21.7 21.6 21.4 21.0 20.7 20.9 21.3 20.9 21.1 21.1 20.8 21.1 21.3 21.6 21.5 21.5 21.8 21.3 21.8 5 21.2 20.8 21.1 20.8 20.3 20.0 19.1 18.5 17.6 17.7 18.0 18.3 18.3 17.4 17.3 17.3 17.6 18.2 17.9 17.9 17.7 17.7 18.0 18.0 18.6 21.2 6 17.7 18.3 18.2 18.2 18.0 18.1 18.2 18.1 17.9 17.9 17.9 18.1 18.2 18.7 18.8 18.7 18.4 18.5 18.7 18.7 18.7 18.4 18.1 18.1 18.3 18.8 7 18.2 18.0 18.3 17.9 19.3 19.2 19.3 19.4 19.7 20.2 20.3 20.5 20.4 20.6 20.6 20.7 21.0 21.1 21.0 20.8 20.8 20.4 20.8 21.2 20.0 21.2 8 21.2 21.0 20.7 20.7 20.8 21.1 21.1 21.0 20.7 20.5 20.7 20.9 21.1 21.2 20.9 20.8 20.5 20.3 20.5 20.6 20.5 20.3 20.5 20.7 20.8 21.2 9 20.6 20.7 20.8 20.8 20.3 20.5 20.6 21.2 21.3 21.2 21.0 21.2 21.0 21.3 21.6 21.8 21.3 21.0 20.9 21.0 21.2 21.5 21.4 21.3 21.1 21.8 10 21.1 21.3 21.6 21.3 21.9 21.9 21.7 21.5 20.5 21.4 21.7 21.2 21.1 21.1 21.0 21.2 21.0 21.3 21.5 21.3 21.2 20.7 21.1 21.0 21.3 21.9 11 21.3 20.8 20.6 20.4 20.4 20.7 21.0 20.7 20.4 20.4 19.7 20.0 20.4 20.9 21.2 20.7 20.7 20.5 19.7 20.6 20.8 20.9 20.8 20.4 20.6 21.3 12 20.0 20.3 20.3 20.2 19.9 19.6 19.9 19.9 20.7 20.8 21.0 20.5 20.5 20.2 20.1 20.1 20.0 20.0 20.0 19.8 19.7 20.0 20.1 20.1 20.2 21.0 13 20.1 19.9 19.6 19.6 19.9 20.1 20.2 20.0 19.6 19.6 19.6 19.7 19.7 19.6 19.5 19.4 19.2 19.2 19.4 19.5 19.3 19.2 19.0 19.0 19.6 20.2 14 19.3 19.3 19.4 18.3 17.7 18.7 18.0 18.7 18.7 19.2 19.4 19.3 18.9 19.8 20.1 20.2 20.3 20.3 20.3 20.7 21.1 21.7 22.2 21.9 19.7 22.2 15 21.6 21.6 21.6 21.6 21.7 21.7 21.4 21.2 21.4 21.1 21.6 21.9 22.6 22.5 22.8 22.9 23.8 23.9 24.0 24.0 23.5 23.5 23.3 23.8 22.4 24.0 16 23.6 23.6 23.2 22.9 23.0 22.9 23.3 22.7 22.3 22.6 22.6 22.3 22.7 22.8 22.7 22.4 22.1 22.0 22.1 22.0 22.1 21.8 21.5 21.5 22.5 23.6 17 21.2 21.7 21.5 21.8 21.7 21.4 21.4 21.4 21.7 21.8 21.5 21.5 20.8 20.6 20.9 21.5 21.4 21.3 20.2 20.2 20.3 20.3 20.9 20.9 21.2 21.8 18 20.6 20.8 20.8 20.7 20.7 20.7 20.7 20.3 20.3 19.9 20.0 20.0 20.3 20.3 20.5 20.2 19.9 20.2 20.8 21.1 21.3 21.3 21.8 22.3 20.7 22.3 19 23.2 23.3 23.7 24.2 24.0 24.0 23.4 23.6 23.4 23.3 23.0 22.5 22.6 23.2 23.7 24.1 24.2 24.1 24.1 23.9 23.6 23.8 23.5 23.5 23.6 24.2 20 23.2 22.6 22.7 23.2 23.5 23.4 23.2 23.0 22.7 23.0 23.0 22.7 22.8 22.4 22.1 21.9 22.4 22.4 22.4 22.2 22.3 22.3 22.5 22.5 22.7 23.5 21 22.7 22.6 22.6 22.3 22.4 22.1 22.1 23.1 23.2 23.1 23.1 23.4 23.8 23.6 23.6 23.8 23.2 23.6 23.9 24.2 24.0 24.1 23.4 23.4 23.2 24.2 22 23.4 23.4 23.4 23.6 24.4 24.4 24.1 24.1 24.2 24.4 23.8 23.4 23.1 22.8 22.5 22.0 21.7 21.4 21.3 21.0 21.0 22.1 23.3 23.4 23.0 24.4 23 23.4 23.6 23.7 24.0 23.6 23.2 22.5 22.1 22.2 22.2 22.7 22.8 22.5 22.4 22.1 22.0 21.8 22.0 22.2 22.2 22.4 22.1 22.1 22.3 22.6 24.0 24 22.6 23.2 23.3 23.3 23.5 23.5 23.4 23.6 23.6 23.3 23.3 23.1 23.3 23.3 23.2 22.9 22.7 22.4 22.3 22.1 22.6 22.4 22.4 22.0 23.0 23.6 25 22.0 21.8 22.0 22.1 22.1 21.8 21.7 21.7 21.7 22.0 22.2 21.9 22.5 22.6 22.6 22.6 22.9 22.7 22.5 22.2 21.9 21.5 21.7 21.7 22.1 22.9 26 21.9 21.6 21.0 20.9 20.7 21.0 21.2 20.6 21.2 20.8 20.8 20.8 21.2 21.1 21.1 21.4 21.2 21.5 21.8 22.3 22.1 22.3 22.0 21.8 21.3 22.3 27 21.8 21.8 21.8999.9 21.8 21.6 21.5 22.7 22.7 23.0 22.9 22.6 22.3 22.0 22.4 21.9 22.1 22.4 22.1 22.2 22.5 22.6 23.0 23.0 22.3 23.0 28 22.9 22.5 22.5 22.6 22.7 22.7 22.6 22.3 22.0 22.1 21.9 22.6 22.9 22.8 23.4 23.7 24.4 24.8 25.4 25.0 25.2 25.0 24.5 24.0 23.4 25.4 29 24.0 23.6 23.0 22.6 21.7 21.2 20.6 21.2 21.6 21.8 21.7 21.8 22.1 22.0 22.1 22.4 22.5 21.7 21.7 21.7 21.8 22.1 22.1 21.9 22.0 24.0 30 21.7 21.2 21.5 22.1 22.2 22.1 21.8 21.8 21.8 21.8 22.0 21.7 21.4 21.4 21.4 21.4 22.1 23.1 24.3 23.7 22.8 22.8 23.5 23.4 22.2 24.3 31 23.4 23.2 23.1 22.6 22.4 22.1 22.5 22.5 22.6 22.4 21.9 22.2 22.1 22.4 22.7 22.0 22.0 22.4 22.1 22.6 23.0 22.7 22.8 23.2 22.5 23.4 MEAN 21.5 21.4 21.4 21.3 21.3 21.3 21.2 21.3 21.2 21.3 21.2 21.2 21.3 21.3 21.4 21.4 21.4 21.5 21.5 21.5 21.5 21.5 21.6 21.6 21.4 22.6 MIXING RATIO OF SURFACE OZONE IN PARTS PER BILLION STATION SOUTH POLE MONTH APRIL YEAR 2002 EQUIPMENT DASIBI GMT 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 MEAN MAX DATE 1 23.5 23.4 23.6 23.7 23.6 22.6 22.3 22.6 22.8 23.1 23.2 23.2 23.1 23.1 23.1 23.7 23.8 23.5 23.0 22.8 22.6 22.6 22.6 22.6 23.1 23.8 2 22.3 22.3 22.4 22.5 22.8 22.8 23.0 23.4 23.6 23.1 23.4 23.6 24.0 24.2 24.0 23.9 23.7 23.7 23.7 23.7 23.4 22.8 22.5 22.5 23.2 24.2 3 22.6 22.6 22.4 22.3 22.0 22.2 22.2 22.6 22.6 22.6 22.7 22.4 22.5 22.7 23.0 23.0 22.6 22.7 22.6 22.7 22.9 23.2 22.9 22.7 22.6 23.2 4 22.4 22.4 22.4 22.6 22.6 22.6 22.4 22.2 22.1 22.2 22.4 22.7 22.2 22.2 22.1 21.9 22.8 22.7 22.5 22.8 22.7 22.5 22.5 22.7 22.4 22.8 5 999.9999.9999.9999.9999.9 22.5 22.5 22.5 22.5 22.6 22.6 22.6 21.8 21.8 21.9 21.9 21.9 22.6 22.6 22.6 22.6 22.6 22.6 21.9 22.4 22.6 6 22.8 23.1 23.1 23.3 23.1 22.9 22.9 22.9 23.2 23.2 23.0 22.5 23.0 24.1 24.5 24.3 24.5 24.3 24.0 24.0 24.0 24.3 24.7 24.7 23.6 24.7 7 24.1 24.1 24.1 24.1 24.2 24.4 24.5 23.4 23.3 23.3 23.3 23.4 23.4 23.6 23.3 23.3 23.6 24.1 24.3 24.4 24.0 24.0 23.8 24.1 23.8 24.5 8 25.3 26.6 26.8 25.7 24.6 24.3 24.1 24.4 24.3 24.7 24.4 24.4 24.5 24.4 24.7 24.7 24.2 23.8 23.5 23.6 23.9 24.9 25.2 25.3 24.7 26.8 9 25.5 25.5 25.5 25.8 25.9 25.9 25.6 25.5 25.5 25.9 26.5 26.2 26.2 25.9 26.0 26.0 26.2 26.2 26.0 26.0 25.9 25.6 25.9 26.0 25.9 26.5 10 26.0 25.7 25.3 25.2 25.0 25.5 25.5 25.8 25.8 25.7 25.2 25.7 26.3 26.6 26.4 26.0 25.4 25.3 25.4 25.3 25.3 25.2 24.9 24.8 25.6 26.6 11 24.8 25.1 25.4 25.7 25.5 25.1 25.0 24.8 25.0 24.7 24.5 23.8 23.4 23.2 23.5 23.8 23.9 23.7 22.8 23.0 22.7 22.5 22.5 22.5 24.0 25.7 12 22.3 22.3 22.3 22.6 22.8 22.8 22.8 22.8 23.1 23.6 24.2 24.6 25.1 25.1 24.7 24.5 24.5 25.0 24.5 24.6 24.2 23.9 23.6 23.5 23.7 25.1 13 23.8 23.8 23.7 23.5 23.5 23.7 23.7 24.0 23.9 23.9 23.5 23.0 23.3 23.3 23.6 23.6 23.5 23.4 23.1 23.6 23.4 23.9 23.6 23.5 23.6 24.0 14 23.4 23.2 23.1 23.5 23.6 23.7 23.5 23.4 23.2 23.2 23.3 23.3 22.7 22.9 22.7 22.8 23.0 23.1 23.0 23.0 22.8 22.8 22.8 23.1 23.1 23.7 15 23.3 23.4 23.3 23.3 23.4 23.7 24.0 23.7 23.7 23.7 23.7 23.9 23.9 23.9 23.7 23.5 23.3 23.4 23.8 24.0 24.1 24.1 23.7 23.9 23.7 24.1 16 23.7 23.9 24.0 23.8 23.8 23.6 24.0 24.4 24.5 24.5 24.7 24.4 24.1 24.3 25.2 26.4 25.5 25.6 25.0 24.7 24.4 24.6 24.7 24.5 24.5 26.4 17 24.4 24.2 24.2 24.0 24.3 24.3 24.1 23.8 23.7 23.5 23.6 23.8 23.8 23.6 23.7 23.4 23.6 23.9 23.9 24.0 23.6 23.1 23.0 23.4 23.8 24.4 18 24.1 24.6 24.3 24.3 24.0 24.2 24.1 24.4 24.5 24.6 24.6 24.6 24.5 24.9 25.2 25.2 24.8 25.0 24.8 25.0 25.4 25.6 25.7 25.4 24.7 25.7 19 25.3 25.1 25.2 25.2 25.5 25.6 25.0 25.2 24.6 24.9 25.1 25.3 25.4 25.1 25.2 25.4 25.6 25.6 26.0 26.0 26.2 26.1 26.4 26.4 25.5 26.4 20 26.4 26.5 26.4 26.4 26.4 26.4 26.4 26.4 26.1 25.9 25.9 25.8 26.1 26.0 25.8 25.8 25.5 25.5 25.8 26.1 26.0 25.3 25.1 25.0 26.0 26.5 21 25.0 25.3 25.9 25.6 25.4 25.4 25.3 25.3 25.7 25.7 25.9 25.7 25.3 25.0 25.3 25.4 25.6 25.7 25.4 25.4 24.8 25.4 25.7 25.3 25.4 25.9 22 25.0 24.5 24.5 25.0 25.0 25.6 25.6 25.4 25.1 25.0 25.2 25.4 25.8 25.6 25.1 24.5 24.5 24.3 25.1 24.1 24.0 24.2 24.0 24.0 24.9 25.8 23 24.3 24.3 24.5 24.8 24.8 25.0 25.0 25.0 25.3 25.2 25.2 24.9 24.9 25.1 25.1 24.9 24.9 24.7 24.7 24.7 24.7 25.0 24.7 25.0 24.9 25.3 24 24.8 24.7 24.8 25.1 25.1 25.0 24.8 25.1 24.9 25.0 25.5 25.6 25.6 25.3 25.1 25.1 25.4 25.8 25.8 25.2 25.8 25.7 25.8 26.2 25.3 26.2 25 26.2 26.3 26.0 26.2 26.2 26.2 26.6 26.6 26.6 26.5 26.2 26.4 26.5 26.5 26.4 26.4 26.2 25.9 26.0 26.3 26.3 26.3 25.9 25.6 26.3 26.6 26 25.5 26.4 26.4 26.4 26.5 26.3 26.2 26.6 26.8 26.9 26.6 26.4 26.3 26.0 26.5 25.9 26.2 26.2 25.6 25.6 25.4 25.7 26.0 25.8 26.2 26.9 27 25.8 25.6 25.9 25.7 25.7 25.7 25.5 25.5 25.3 25.3 25.5 25.9 25.9 25.7 25.4 25.0 25.2 25.4 25.6 25.5 25.3 25.3 24.8 25.1 25.5 25.9 28 25.7 26.0 26.0 25.5 25.5 25.5 25.8 25.8 25.8 25.5 25.0 25.1 25.1 25.4 25.8 26.7 26.5 26.0 25.9 25.8 25.8 26.1 26.8 26.5 25.8 26.8 29 26.4 26.2 26.1 25.8 26.0 26.0 25.5 25.4 25.5 25.5 25.5 25.7 25.1 24.9 24.8 24.9 25.1 25.1 25.2 25.2 24.4 24.7 24.9 25.2 25.4 26.4 30 24.9 25.0 24.6 24.5 24.6 25.2 25.8 25.5 25.5 25.3 24.8 25.0 25.3 25.5 25.2 25.5 25.7 25.7 26.3 26.2 26.6 26.7 26.3 25.9 25.5 26.7 MEAN 24.5 24.6 24.6 24.6 24.5 24.5 24.5 24.5 24.5 24.5 24.5 24.5 24.5 24.5 24.6 24.6 24.6 24.6 24.5 24.5 24.4 24.5 24.4 24.4 24.5 25.3 MIXING RATIO OF SURFACE OZONE IN PARTS PER BILLION STATION SOUTH POLE MONTH MAY YEAR 2002 EQUIPMENT DASIBI GMT 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 MEAN MAX DATE 1 26.1 26.0 26.1 26.2 26.3 26.0 26.0 26.2 26.5 26.8 26.8 26.6 26.3 26.1 26.3 27.0 26.7 27.2 27.1 26.8 27.0 27.1 27.1 27.1 26.6 27.2 2 26.8 26.6 26.4 26.3 26.7 26.6 26.4 26.4 26.0 26.1 26.1 26.7 26.4 26.4 26.1 25.8 25.2 24.9 26.0 26.5 26.2 26.1 25.7 25.8 26.2 26.8 3 26.0 26.4 26.3 26.3 26.0 26.1 26.3 26.4 26.7 26.1 26.3 26.3 26.0 26.4 26.6 26.3 26.3 26.1 26.3 26.3 26.6 26.6 26.5 26.6 26.3 26.7 4 26.4 26.4 26.5 27.0 27.4 26.8 26.7 26.9 26.7 27.0 26.9 26.7 26.4 26.0 26.5 26.6 26.9 27.1 26.5 26.8 26.8 27.1 27.5 27.5 26.8 27.5 5 27.6 27.6 27.3 27.5 27.7 27.9 28.3 28.4 28.1 27.8 27.9 28.0 28.1 28.4 28.2 28.2 27.7 27.8 28.1 28.2 28.2 28.3 27.8 27.7 28.0 28.4 6 27.8 28.1 27.8 28.2 28.2 28.1 27.7 28.3 28.2 28.4 28.4 28.3 28.3 28.2 28.2 28.2 28.0 28.2 27.9 27.7 27.4 27.7 27.9 27.9 28.0 28.4 7 27.6 27.3 27.2 27.3 27.3 27.6 27.9 27.9 28.0 28.2 28.8 29.1 29.4 29.1 28.8 28.9 28.8 28.8 28.5 28.5 28.1 28.1 28.1 28.2 28.2 29.4 8 28.5 28.6 28.2 28.1 27.9 28.1 28.5 28.5 28.8 28.3 28.0 28.0 27.9 27.9 28.5 28.9 28.6 28.1 29.0 29.0 29.2 29.2 28.9 28.9 28.5 29.2 9 28.6 28.4 28.5 28.5 28.7 28.3 28.2 27.9 27.8 28.2 28.1 28.1 27.5 27.1 27.4 27.4 27.6 27.8 27.6 27.5 27.1 26.9 26.9 27.4 27.8 28.7 10 27.4 27.3 27.3 27.3 27.3 27.4 27.6 27.7 27.3 27.5 27.6 27.6 27.9 28.0 27.8 27.4 27.3 27.3 27.8 28.2 28.7 28.3 29.0 29.9 27.8 29.9 11 28.1 30.1 30.1 30.0 29.7 29.6 29.3 29.6 29.9 30.1 29.7 29.4 29.3 29.2 29.3 29.5 29.7 29.6 29.4 29.2 29.4 29.7 30.2 29.4 29.6 30.2 12 29.1 29.2 29.1 29.7 29.7 30.0 29.5 29.4 29.1 29.2 29.2 29.5 29.2 29.0 28.9 28.9 29.1 29.3 28.5 29.1 28.9 28.8 28.9 29.0 29.2 30.0 13 29.0 29.4 29.4 29.3 29.2 28.8 29.4 29.7 29.7 29.2 29.1 28.9 29.2 29.4 29.5 29.2 29.2 28.7 28.5 28.4 28.5 29.0 28.8 28.6 29.1 29.7 14 29.3 28.4 28.3 28.4 29.1 28.6 28.6 28.4 28.4 28.6 28.6 28.5 28.2 28.2 28.1 28.4 28.2 27.5 28.4 28.3 28.0 27.8 28.3 28.2 28.4 29.3 15 28.0 28.0 27.3 27.9 27.6 28.2 28.8 28.5 28.5 28.5 29.5 30.4 31.0 31.0 31.4 31.1 31.0 30.7 30.8 31.1 31.5 30.8 30.9 30.5 29.7 31.5 16 30.6 31.2 31.2 31.3 31.1 31.2 31.2 31.2 31.0 30.9 30.6 30.4 30.4 30.6 30.9 31.2 31.0 30.7 30.4 30.6 31.0 30.7 30.8 30.9 30.9 31.3 17 31.2 30.9 31.4 31.8 32.0 32.1 31.7 31.3 31.1 31.0 31.6 31.5 31.5 31.8 32.3 32.5 32.7 33.0 33.0 32.7 32.5 32.2 32.2 32.4 31.9 33.0 18 32.6 32.7 32.3 32.1 32.0 32.1 32.3 32.2 32.2 31.9 31.6 31.3 31.2 31.5 31.9 31.9 31.7 31.4 31.6 31.7 32.4 32.7 32.6 32.3 32.0 32.7 19 31.6 31.9 32.2 32.5 32.4 32.1 31.8 31.6 31.6 31.7 31.8 31.7 31.5 31.2 30.9 31.0 31.3 31.3 31.4 30.8 31.1 30.9 30.9 30.9 31.5 32.5 20 31.0 30.4 30.4 30.4 30.1 30.5 30.5 30.4 30.4 30.1 30.2 30.2 30.4 30.4 30.5 30.1 30.0 30.1 30.2 30.4 30.4 30.4 30.2 30.4 30.3 31.0 21 30.4 30.7 30.8 30.3 30.6 30.2 30.6 30.8 31.3 31.4 32.0 32.7 32.3 32.6 33.2 33.3 32.7 32.1 31.6 30.7 30.4 30.0 30.0 29.9 31.3 33.3 22 29.6 29.5 29.3 29.5 29.8 30.1 29.9 29.8 29.6 29.5 29.9 29.9 30.4 29.9 29.9 29.9 30.2 30.5 30.8 30.8 30.8 31.0 31.0 31.4 30.1 31.4 23 31.5 31.6 31.7 31.2 31.0 31.4 31.6 31.7 31.9 31.9 31.4 32.7 30.8 31.3 30.8 30.4 28.9 28.9 28.1 30.3 32.3 31.6 30.6 30.0 31.0 32.7 24 30.4 29.5 30.7 30.6 29.7 28.1 28.1 27.7 29.0 29.7 29.6 28.4 30.8 31.5 31.2 31.2 31.1 31.3 31.1 30.8 30.9 30.7 30.7 31.4 30.2 31.5 25 30.7 29.9 30.3 30.6 30.9 31.2 31.8 31.5 29.6 28.3 27.4 30.7 29.1 29.3 29.0 29.2 29.4 30.2 29.8 30.8 32.1 29.9 31.5 31.3 30.2 32.1 26 32.3 33.8 33.9 32.6 33.5 32.5 32.6 32.6 32.4 33.2 33.1 32.9 33.1 32.3 32.4 33.2 32.7 32.0 33.1 33.7 34.2 34.3 34.6 34.3 33.1 34.6 27 34.0 33.7 34.0 34.2 34.6 34.6 34.6 34.3 34.0 34.0 33.8 33.9 33.5 33.4 33.2 33.2 32.8 33.0 34.2 34.5 34.2 34.2 33.9 34.5 33.9 34.6 28 34.8 34.8 34.6 34.2 33.8 33.3 33.0 32.9 32.9 32.6 32.4 32.4 32.9 33.4 33.5 33.3 33.9 33.8 34.1 34.1 34.0 33.9 33.7 33.4 33.6 34.8 29 33.5 33.8 33.6 34.0 34.0 33.9 33.3 33.6 33.8 33.8 33.9 33.8 33.9 33.8 33.6 33.5 33.7 33.7 33.7 33.3 32.9 32.6 33.0 31.9 33.5 34.0 30 32.6 32.0 31.6 32.2 32.1 32.4 32.7 32.5 32.5 32.3 32.4 32.8 33.4 33.8 33.1 32.8 32.7 32.8 33.0 33.9 33.8 33.7 33.7 33.6 32.9 33.9 31 33.8 33.7 33.4 33.4 33.1 32.9 32.7 32.8 32.7 32.7 32.5 32.4 32.2 32.3 32.3 32.9 33.2 32.9 32.9 32.9 33.1 33.0 32.9 32.4 32.9 33.8 MEAN 29.9 29.9 29.9 30.0 30.0 29.9 29.9 29.9 29.9 29.8 29.9 30.0 29.9 30.0 30.0 30.1 29.9 29.9 30.0 30.1 30.2 30.1 30.2 30.1 30.0 31.0 MIXING RATIO OF SURFACE OZONE IN PARTS PER BILLION STATION SOUTH POLE MONTH JUNE YEAR 2002 EQUIPMENT DASIBI GMT 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 MEAN MAX DATE 1 32.2 32.0 31.5 31.5 31.6 31.6 31.6 31.5 31.2 31.1 31.5 31.8 32.0 32.3 32.0 32.3 32.7 32.9 33.2 33.2 32.7 32.8 32.5 33.2 32.1 33.2 2 33.0 33.1 32.8 32.8 32.5 32.7 32.7 32.9 33.1 32.6 32.4 32.1 32.0 32.3 32.2 32.3 32.1 31.8 32.0 32.3 32.6 32.9 32.6 32.7 32.5 33.1 3 32.8 32.8 33.3 33.6 33.3 33.7 33.5 33.7 33.9 34.2 34.2 33.9 33.7 33.3 33.0 33.0 33.0 33.1 33.0 32.7 32.5 32.5 32.6 32.8 33.3 34.2 4 32.9 32.6 32.0 32.0 32.6 33.2 33.2 33.2 32.8 32.7 32.3 32.8 33.0 33.0 33.0 32.8 32.8 33.3 32.8 33.0 33.4 33.0 33.0 32.7 32.8 33.4 5 33.0 33.6 33.7 33.4 33.4 33.4 33.4 33.4 33.9 33.7 33.5 33.0 32.9 32.6 32.3 32.5 32.2 32.0 31.7 31.6 31.6 31.9 31.9 31.9 32.8 33.9 6 31.9 31.6 31.9 31.7 31.7 31.8 32.3 32.2 32.1 32.4 32.5 32.5 32.2 31.9 31.6 31.3 31.3 31.6 31.8 31.7 31.5 31.4 31.2 31.7 31.8 32.5 7 32.3 32.7 32.8 33.1 33.6 32.9 32.8 33.3 33.7 34.0 33.8 33.4 33.3 33.2 32.8 33.0 33.1 33.1 33.5 34.3 34.5 34.3 34.4 33.5 33.4 34.5 8 31.6 30.7 31.0 31.3 31.2 31.6 31.4 31.3 31.5 31.3 31.8 31.5 31.6 31.5 31.5 31.9 32.0 32.2 32.1 31.9 31.7 31.9 32.2 32.1 31.6 32.2 9 32.6 32.5 32.2 32.4 32.6 33.2 33.0 33.0 33.0 32.8 32.7 32.9 33.0 33.0 33.1 32.8 32.5 32.5 32.8 32.5 32.5 32.4 32.3 32.4 32.7 33.2 10 30.8 32.3 32.1 31.8 32.3 31.5 31.4 31.8 32.1 32.1 31.8 31.5 31.3 31.8 31.3 31.5 31.6 31.3 31.1 30.8 31.4 31.1 31.4 31.4 31.6 32.3 11 31.1 31.0 31.0 31.5 31.7 32.1 32.7 32.7 32.4 32.2 32.8 31.8 31.1 31.1 30.9 30.9 30.9 30.9 30.9 30.9 30.9 30.9 30.9 30.9 31.4 32.8 12 31.7 31.7 32.4 32.4 32.4 32.4 32.4 31.6 32.4 32.4 32.4 32.4 32.4 32.4 32.4 33.1 33.1 33.1 33.1 33.1 33.1 32.4 31.6 31.6 32.4 33.1 13 30.9 30.9 30.9 30.9 30.9 30.9 30.9 30.9 30.9 30.9 30.9 31.6 31.6 31.6 31.6 31.6 30.9 30.9 30.9 30.9 30.9 31.6 30.9 30.9 31.1 31.6 14 31.6 31.6 31.6 31.6 31.6 32.3 32.3 32.3 32.3 32.3 32.3 32.3 32.3 32.3 32.3 32.3 32.3 32.3 32.3 33.0 32.3 32.3 32.3 32.3 32.2 33.0 15 32.3 31.6 30.8 30.8 30.8 30.8 30.8 30.8 30.1 30.8 30.8 30.8 30.8 30.8 30.8 31.6 31.5 30.8 30.1 30.8 30.8 30.8 30.8 30.8 30.9 32.3 16 30.8 31.5 31.5 31.5 31.5 31.5 31.5 30.8 31.5 31.5 31.5 31.5 31.5 31.5 31.5 30.8 30.8 30.8 30.8 30.8 30.8 30.8 30.8 30.8 31.2 31.5 17 31.2 31.4 31.7 31.2 31.1 31.6 31.4 31.9 31.7 31.6 31.8 31.5 31.5 31.8 32.1 32.1 31.9 31.9 32.2 31.9 32.2 32.7 32.4 32.3 31.8 32.7 18 32.0 31.9 31.9 32.2 31.8 31.1 30.9 30.9 31.1 31.6 31.8 31.8 31.5 31.2 31.5 31.4 29.2 30.9 31.4 31.1 30.9 30.9 31.4 31.9 31.3 32.2 19 31.8 32.1 32.1 32.2 32.5 32.5 32.4 32.9 32.7 32.4 32.5 32.9 32.6 32.5 32.5 32.2 32.4 32.2 32.9 32.9 33.0 32.9 32.6 32.6 32.5 33.0 20 32.9 32.8 32.8 32.8 32.4 32.5 32.4 32.7 32.7 32.8 32.7 32.3 32.1 31.8 32.1 30.2 31.6 32.0 32.0 31.9 31.8 31.8 32.1 32.4 32.2 32.9 21 31.7 31.5 31.8 32.4 32.4 32.9 32.0 32.4 31.8 31.8 32.3 32.5 32.4 32.5 31.8 31.8 31.9 32.0 32.3 32.3 31.8 31.8 31.7 31.9 32.1 32.9 22 32.2 32.4 32.0 31.9 31.7 32.2 32.6 32.6 32.6 32.0 32.1 32.3 32.4 32.1 32.3 32.4 32.0 31.5 32.1 32.1 32.0 32.0 32.0 31.6 32.1 32.6 23 31.1 31.2 31.9 32.2 30.6 31.1 30.7 31.6 30.0 31.2 31.3 31.3 31.0 31.0 30.8 30.9 31.7 32.5 33.3 33.3 32.5 32.3 32.2 32.4 31.6 33.3 24 32.3 32.1 32.4 31.9 31.9 33.2 33.6 33.1 32.8 32.8 32.7 32.9 33.2 33.5 33.3 32.9 32.7 32.8 34.2 34.4 34.1 34.2 33.6 33.7 33.1 34.4 25 33.7 33.7 33.4 33.8 33.5 33.2 33.8 33.9 33.8 34.1 33.8 33.1 32.9 33.1 33.2 33.3 33.8 33.3 33.6 33.9 33.5 34.0 33.7 33.4 33.6 34.1 26 33.4 33.1 32.8 33.0 33.3 32.8 32.7 32.3 32.3 32.2 32.6 32.8 32.9 32.7 32.2 32.4 32.6 33.6 34.0 33.7 33.6 33.6 33.6 33.7 33.0 34.0 27 33.8 33.8 33.7 33.5 32.8 33.5 33.8 33.8 33.9 33.6 33.5 33.2 33.5 33.8 34.0 34.0 33.6 33.6 33.6 33.9 34.1 33.9 33.8 33.5 33.7 34.1 28 33.5 33.4 33.5 34.0 33.7 33.5 33.2 33.4 33.5 33.1 33.5 33.5 33.4 33.4 32.9 32.9 33.9 33.8 34.4 34.0 34.2 34.5 34.4 35.2 33.7 35.2 29 34.9 34.9 34.6 34.5 34.4 34.6 34.5 34.2 34.0 33.9 33.9 34.4 34.9 35.2 34.7 34.6 34.7 34.9 34.9 34.9 34.9 34.7 34.6 34.4 34.6 35.2 30 34.6 34.9 35.0 34.9 34.7 34.8 34.8 35.0 35.4 35.4 35.1 34.8 34.6 34.7 34.7 34.9 34.6 34.4 34.1 33.8 34.0 34.6 34.3 34.3 34.7 35.4 MEAN 32.4 32.4 32.4 32.4 32.4 32.5 32.5 32.5 32.5 32.5 32.6 32.5 32.5 32.5 32.3 32.3 32.3 32.4 32.6 32.6 32.5 32.6 32.5 32.5 32.5 33.3 MIXING RATIO OF SURFACE OZONE IN PARTS PER BILLION STATION SOUTH POLE MONTH JULY YEAR 2002 EQUIPMENT DASIBI GMT 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 MEAN MAX DATE 1 34.0 33.4 33.6 35.0 35.0 35.2 35.7 35.1 35.1 34.7 34.7 34.3 33.6 33.2 33.0 32.5 32.9 32.8 33.2 32.8 32.8 32.8 32.9 32.8 33.8 35.7 2 33.4 33.2 32.8 33.1 33.1 32.9 33.4 33.7 33.2 32.9 33.1 32.9 33.2 33.4 33.6 33.3 32.9 32.9 33.2 33.0 34.0 33.9 33.6 33.3 33.3 34.0 3 33.6 33.3 34.0 33.9 34.3 34.1 33.9 33.8 33.6 33.8 34.1 34.2 33.9 33.5 33.9 34.4 34.8 33.8 34.5 34.4 34.4 34.8 35.2 35.3 34.1 35.3 4 35.2 35.5 35.3 35.0 35.3 35.5 35.8 35.4 35.1 34.9 34.9 34.9 35.0 34.7 34.7 34.4 34.4 34.5 34.8 34.9 34.5 34.6 34.4 34.4 34.9 35.8 5 34.5 34.8 34.4 34.7 34.1 34.0 34.1 34.2 34.4 34.4 34.4 34.5 34.1 34.4 34.7 34.5 34.7 34.4 34.3 34.3 34.5 34.5 34.9 34.5 34.4 34.9 6 34.5 34.3 34.2 34.3 34.4 34.5 34.2 33.8 33.9 34.2 34.8 34.8 34.7 34.4 34.2 34.1 34.7 34.5 34.8 34.2 34.2 33.8 34.1 34.1 34.3 34.8 7 34.6 34.8 34.5 34.2 34.2 34.1 34.1 34.1 34.2 33.9 33.6 33.5 34.0 33.8 33.7 33.8 33.5 33.2 33.4 33.5 33.8 33.4 33.4 33.1 33.9 34.8 8 32.9 33.2 32.8 33.0 32.9 32.3 32.6 32.4 33.5 33.3 33.7 34.5 34.6 33.1 33.0 32.9 32.9 32.9 32.9 33.1 33.0 33.2 33.4 33.7 33.2 34.6 9 33.2 33.0 33.1 33.0 33.4 33.8 34.1 34.2 34.1 34.1 34.2 34.8 34.6 34.5 34.0 33.7 33.7 33.5 34.0 33.8 33.9 33.8 33.8 33.6 33.8 34.8 10 33.8 34.0 34.1 33.9 34.0 33.6 33.4 33.5 33.9 33.8 33.9 33.4 33.4 33.6 33.5 34.0 33.7 33.5 33.5 33.5 33.7 33.8 33.8 33.6 33.7 34.1 11 33.7 33.7 33.9 34.2 34.3 34.6 34.6 34.4 34.5 34.4 34.7 34.8 34.2 34.0 33.7 33.9 34.1 34.3 34.0 34.2 33.9 33.7 34.0 34.0 34.2 34.8 12 34.2 34.1 33.8 33.7 33.7 33.8 34.1 34.4 34.4 34.1 34.2 34.4 34.7 34.6 34.9 34.6 34.5 34.1 33.8 34.1 34.4 34.0 33.8 33.5 34.2 34.9 13 33.3 33.6 34.0 34.2 33.9 34.2 33.6 33.3 33.3 33.5 34.1 34.4 34.4 34.4 34.5 34.7 34.7 34.8 34.1 33.3 33.2 33.5 33.9 34.0 33.9 34.8 14 32.8 32.8 32.8 32.7 32.8 33.5 33.5 33.5 33.5 35.7 35.7 35.0 33.6 34.3 35.0 35.8 36.5 33.6 32.8 32.2 32.9 32.9 35.1 33.6 33.9 36.5 15 33.6 35.3 34.8 33.2 33.1 33.0 33.3 33.6 33.6 33.6 33.3 33.5 33.4 34.6 34.4 34.5 34.0 34.6 34.5 34.5 34.6 34.7 34.6 34.4 34.0 35.3 16 34.1 34.0 34.0 34.3 34.3 34.6 34.5 34.2 34.0 34.3 34.3 34.3 34.5 34.0 34.0 34.2 34.5 34.9 34.7 35.1 34.5 34.6 34.9 34.9 34.4 35.1 17 34.9 35.3 34.7 35.0 34.9 34.4 34.7 35.2 34.8 34.6 34.5 34.5 34.5 34.6 34.7 34.5 34.1 33.7 34.1 34.3 34.4 34.5 34.2 33.9 34.5 35.3 18 33.8 34.0 34.2 34.5 34.5 34.1 34.1 33.8 33.8 33.7 33.9 33.8 33.6 33.6 33.7 33.7 33.5 31.4 33.5 33.6 33.8 34.1 34.3 34.4 33.8 34.5 19 34.3 34.2 34.2 34.1 34.5 34.7 34.7 34.8 34.5 34.4 34.6 34.6 34.9 34.9 34.5 34.2 34.4 34.2 34.4 34.3 34.4 34.3 34.1 34.2 34.4 34.9 20 34.2 34.7 34.7 34.5 34.3 34.5 34.3 34.6 35.0 34.8 34.4 34.2 34.2 34.3 34.4 34.6 34.9 35.0 34.6 34.5 34.7 34.8 34.7 34.7 34.6 35.0 21 34.5 34.6 34.6 34.9 34.9 35.1 34.8 34.6 34.6 35.1 35.3 35.2 35.3 35.3 35.1 34.9 35.3 35.6 35.3 35.2 35.2 34.9 35.5 35.3 35.1 35.6 22 35.3 35.3 35.0 35.2 35.6 35.2 34.9 35.6 32.6 32.5 32.2 32.3 33.7 32.3 32.5 31.6 31.5 32.5 31.0 33.1 31.4 33.4 32.8 33.4 33.4 35.6 23 34.6 33.1 33.4 32.2 33.6 32.4 33.6 32.7 33.6 33.3 33.8 33.6 34.7 36.1 35.8 35.6 35.6 34.3 33.7 33.8 34.3 34.5 35.4 35.6 34.1 36.1 24 35.7 35.6 36.0 35.6 35.3 35.2 34.9 35.2 34.7 34.7 34.6 34.8 34.8 34.6 34.4 34.4 34.4 34.4 34.4 34.0 34.2 34.0 34.3 34.5 34.8 36.0 25 34.9 35.2 35.5 35.4 35.4 35.4 35.6 35.9 35.9 36.1 35.4 35.6 35.7 35.5 35.9 35.5 35.4 35.6 36.3 35.7 36.7 36.2 36.4 36.1 35.7 36.7 26 35.9 35.8 35.7 36.2 36.3 35.4 35.1 34.4 34.3 34.0 34.0 34.2 33.4 32.9 32.6 32.5 32.5 32.8 33.2 33.5 33.2 33.2 33.2 33.2 34.1 36.3 27 33.5 33.2 33.3 33.2 33.2 33.5 34.0 34.2 34.3 34.2 33.8 33.9 34.2 34.4 34.4 34.4 34.1 33.7 34.3 34.3 34.2 34.5 33.9 33.4 33.9 34.5 28 32.8 32.6 32.4 32.6 32.7 32.7 32.5 32.7 32.8 32.4 32.6 32.6 32.2 32.2 32.4 33.5 34.4 34.3 34.3 34.8 35.0 35.2 35.2 35.2 33.3 35.2 29 35.4 35.0 35.1 34.8 35.3 35.3 35.7 35.5 35.2 35.4 35.7 35.8 36.4 36.2 36.2 35.9 35.8 36.0 36.1 36.4 36.4 35.5 35.5 35.2 35.7 36.4 30 35.7 35.8 35.7 35.5 35.5 35.2 35.2 34.9 35.0 35.3 34.7 34.4 34.3 34.2 34.5 34.5 34.2 34.1 33.5 33.6 33.8 33.9 33.9 33.7 34.6 35.8 31 33.3 33.2 33.4 33.5 33.8 34.1 33.7 33.7 33.8 33.6 33.9 33.9 33.6 33.3 33.4 33.2 33.5 33.5 34.1 33.8 33.5 33.2 33.5 33.8 33.6 34.1 MEAN 34.2 34.2 34.2 34.2 34.3 34.2 34.3 34.2 34.2 34.2 34.2 34.2 34.2 34.2 34.2 34.1 34.2 34.0 34.0 34.1 34.1 34.1 34.3 34.2 34.2 35.2 MIXING RATIO OF SURFACE OZONE IN PARTS PER BILLION STATION SOUTH POLE MONTH AUGUST YEAR 2002 EQUIPMENT DASIBI GMT 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 MEAN MAX DATE 1 34.1 33.6 33.2 33.0 33.1 33.1 33.1 32.8 33.4 33.4 33.1 33.0 33.5 33.8 34.2 34.2 34.2 34.2 34.5 34.6 34.7 34.6 34.7 34.3 33.8 34.7 2 34.1 33.7 34.1 34.2 34.2 34.2 33.9 34.2 34.0 34.3 34.3 34.0 34.0 33.8 33.7 34.1 34.6 34.4 34.7 34.6 34.3 34.7 34.9 34.6 34.2 34.9 3 34.4 34.3 34.1 34.2 34.3 34.4 34.5 34.2 33.9 33.9 34.0 34.3 34.4 34.6 33.6 33.9 34.2 34.4 34.4 34.5 34.7 34.4 34.3 34.3 34.3 34.7 4 34.3 34.4 34.5 34.4 34.1 34.1 34.2 34.3 34.6 34.6 34.1 34.1 34.2 34.4 34.4 34.6 34.5 34.2 34.2 34.3 34.1 34.5 34.7 34.4 34.3 34.7 5 34.1 33.8 33.9 34.2 33.9 33.8 33.7 33.0 33.2 33.2 33.2 33.3 33.3 32.9 32.6 32.8 32.7 32.7 33.0 32.7 32.6 32.6 32.4 32.9 33.2 34.2 6 33.2 33.0 32.7 32.3 32.3 32.2 32.2 32.3 32.2 31.8 31.7 31.5 31.7 32.1 31.2 30.6 30.9 30.0 30.4 31.1 30.9 31.1 31.2 30.8 31.6 33.2 7 31.1 31.1 31.1 31.1 31.2 30.9 30.7 31.0 31.3 31.6 31.8 31.9 32.1 32.2 32.8 33.6 34.2 34.5 34.8 34.6 34.7 34.8 34.8 34.7 32.6 34.8 8 34.8 34.5 34.4 34.4 34.6 34.9 34.5 34.4 34.2 34.1 34.0 34.0 33.9 33.9 33.7 33.4 33.5 32.9 32.5 33.3 33.4 33.1 33.0 32.9 33.9 34.9 9 33.5 33.4 33.4 33.3 33.4 33.2 33.6 33.8 34.0 33.8 33.8 33.7 33.7 33.7 34.0 34.1 34.1 33.8 33.8 33.9 33.9 34.1 33.9 34.8 33.8 34.8 10 33.9 33.5 33.8 33.8 34.0 34.0 33.9 33.4 33.7 33.9 34.1 34.1 34.1 33.8 33.7 33.5 34.1 34.3 34.2 34.1 34.1 34.0 34.2 34.4 33.9 34.4 11 34.3 34.4 34.5 34.2 34.4 34.3 34.5 34.4 34.6 34.3 34.0 34.0 33.9 34.0 33.9 33.6 33.2 32.1 32.6 33.5 33.7 34.2 33.9 33.9 33.9 34.6 12 34.1 34.2 34.3 34.6 34.4 34.5 34.1 33.5 33.4 34.0 33.7 34.0 34.0 34.3 34.5 34.5 34.7 34.5 33.9 33.9 33.7 34.2 34.1 34.4 34.1 34.7 13 34.1 34.0 34.2 34.2 34.1 34.0 34.0 33.6 33.3 33.1 33.2 33.3 33.5 33.5 33.2 33.2 33.1 33.2 33.7 33.8 33.8 33.9 33.9 34.2 33.7 34.2 14 34.5 34.8 35.3 35.4 35.4 35.6 36.1 36.4 36.8 36.8 36.7 36.6 36.6 36.8 37.1 37.1 37.3 36.9 36.8 36.9 37.1 37.4 37.6 37.5 36.5 37.6 15 37.3 37.3 37.5 37.6 38.0 36.2 36.2 36.7 36.6 37.0 36.3 36.3 36.0 35.4 35.3 34.7 34.8 34.9 35.1 35.0 34.3 34.5 34.7 35.0 36.0 38.0 16 35.3 34.6 34.1 35.3 35.1 36.3 36.9 37.5 36.7 36.5 36.5 36.5 36.5 37.0 36.9 36.9 36.5 36.4 36.5 36.9 36.7 36.7 36.6 35.9 36.3 37.5 17 35.9 35.7 35.9 36.1 36.0 36.0 35.4 35.7 35.6 34.7 35.1 35.0 34.1 34.3 34.3 34.5 34.7 34.9 34.6 34.3 34.0 34.2 34.2 34.3 35.0 36.1 18 34.3 34.5 34.4 34.3 35.2 35.5 35.4 34.9 34.8 34.4 34.4 34.3 34.4 34.3 34.3 34.1 34.1 34.2 34.3 34.3 34.3 34.3 34.3 34.1 34.5 35.5 19 34.0 34.0 34.7 34.3 33.5 33.6 33.4 34.0 34.2 34.0 33.7 33.4 33.8 33.8 34.1 34.4 34.7 34.6 34.8 35.1 35.1 35.4 35.4 35.3 34.3 35.4 20 35.0 35.0 35.0 35.4 35.2 35.1 34.9 34.6 34.7 34.7 34.8 34.9 35.0 34.7 34.4 34.5 35.1 35.2 35.2 35.3 35.3 35.2 35.4 35.5 35.0 35.5 21 36.0 35.8 35.7 34.8 35.6 35.5 35.6 35.8 36.0 35.6 35.6 35.2 35.9 35.7 36.0 35.6 35.4 35.4 35.5 35.8 36.0 35.8 35.3 35.9 35.6 36.0 22 35.3 35.5 36.0 36.0 35.7 36.0 35.8 35.5 36.0 36.1 36.3 36.3 35.7 35.5 35.3 35.6 36.5 36.3 36.2 36.0 35.7 35.8 35.9 36.2 35.9 36.5 23 35.8 35.2 35.8 35.8 35.8 36.0 35.8 35.4 35.7 35.6 35.0 35.3 35.8 35.5 35.1 35.0 35.3 34.9 34.9 35.5 34.8 35.1 34.5 34.6 35.4 36.0 24 34.4 34.6 34.3 34.3 34.4 34.1 34.1 34.3 34.4 34.6 34.3 34.3 34.3 33.9 34.0 34.6 34.8 34.6 34.6 34.5 34.8 34.8 34.7 34.8 34.4 34.8 25 34.6 34.5 34.5 34.6 34.8 34.5 34.5 34.0 34.2 34.3 34.9 34.6 35.0 34.8 34.8 35.0 35.0 34.1 34.1 35.7 35.8 35.8 36.1 36.4 34.9 36.4 26 36.2 36.1 36.0 35.8 36.0 36.1 36.4 36.4 36.1 35.9 35.9 35.9 35.7 36.0 35.9 35.7 35.4 35.2 35.1 35.3 35.3 35.2 35.0 34.4 35.7 36.4 27 34.1 34.5 34.8 34.8 34.9 34.3 34.8 34.6 34.9 35.2 35.3 35.3 35.1 35.2 35.5 35.8 36.2 36.2 36.0 35.6 35.6 34.9 36.0 35.8 35.2 36.2 28 35.5 34.9 34.4 34.6 34.7 34.6 34.5 34.2 33.9 34.0 33.6 33.2 33.8 33.4 33.1 32.9 32.9 32.7 32.6 32.8 32.7 32.3 31.7 32.2 33.5 35.5 29 32.3 32.0 32.0 32.3 31.8 31.8 32.0 32.1 32.4 32.3 32.0 31.8 31.5 31.7 31.8 31.5 31.5 31.3 31.1 31.0 31.1 31.1 31.4 31.3 31.7 32.4 30 31.2 31.2 31.2 31.5 30.4 30.6 30.9 31.3 31.2 31.5 31.9 32.0 32.3 32.1 31.8 31.8 31.9 32.0 31.8 31.8 31.3 31.2 31.5 31.7 31.5 32.3 31 31.5 31.7 31.4 30.7 31.4 31.4 31.6 31.6 31.4 31.3 31.1 31.2 31.4 31.7 31.7 32.0 31.6 31.7 31.7 31.9 32.0 32.1 31.5 31.4 31.5 32.1 MEAN 34.3 34.2 34.2 34.2 34.3 34.2 34.2 34.2 34.2 34.2 34.1 34.1 34.2 34.2 34.1 34.1 34.2 34.1 34.1 34.3 34.2 34.3 34.2 34.3 34.2 35.1 MIXING RATIO OF SURFACE OZONE IN PARTS PER BILLION STATION SOUTH POLE MONTH SEPTEMBER YEAR 2002 EQUIPMENT DASIBI GMT 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 MEAN MAX DATE 1 31.7 31.7 31.6 31.4 31.4 31.3 31.2 31.2 31.3 31.4 31.1 30.5 30.5 30.5 30.1 31.1 31.2 31.4 30.9 30.9 30.8 31.1 31.0 31.3 31.1 31.7 2 31.0 30.8 30.5 30.7 30.7 30.7 30.9 30.7 30.6 30.8 30.8 31.4 31.8 32.3 32.1 31.6 31.9 32.2 32.8 33.2 33.3 33.2 32.9 32.8 31.7 33.3 3 33.2 33.5 33.5 33.5 33.3 33.0 32.8 32.8 32.5 32.5 32.5 32.3 32.4 32.4 32.9 32.9 32.9 32.9 32.3 32.6 32.4 32.7 32.7 32.7 32.8 33.5 4 32.1 32.3 32.7 32.6 32.8 32.6 32.9 32.4 31.8 33.1 33.7 34.0 33.9 33.6 33.8 33.7 34.1 33.9 34.1 33.6 33.9 33.6 33.2 33.2 33.2 34.1 5 34.1 33.8 32.4 29.0 26.7 29.7 31.4 29.8 32.4 32.6 32.8 33.2 33.2 33.7 33.9 34.0 33.6 33.7 34.3 34.0 34.3 34.1 33.3 32.9 32.6 34.3 6 33.2 33.0 32.8 32.8 32.6 32.8 32.5 32.8 32.7 32.9 33.0 33.5 33.4 33.2 32.6 34.5 33.9 33.6 34.6 35.3 35.1 34.7 34.0 33.4 33.5 35.3 7 33.0 32.9 32.7 32.6 32.6 32.8 32.6 32.7 33.3 33.7 33.8 33.7 33.8 33.5 33.6 34.1 34.1 34.4 35.1 34.9 34.8 34.8 35.2 35.1 33.7 35.2 8 34.9 34.6 34.4 34.4 35.1 35.4 35.0 35.0 34.6 34.7 34.6 34.7 34.4 34.6 34.2 33.7 33.7 34.2 34.6 34.1 34.4 33.8 33.5 33.8 34.4 35.4 9 34.4 34.6 34.3 34.6 34.2 34.3 34.5 34.6 35.0 34.7 34.6 34.3 34.6 34.5 34.5 35.2 35.2 35.0 35.1 34.6 34.2 34.1 33.9 33.8 34.5 35.2 10 33.6 33.8 34.3 34.6 34.2 34.2 34.0 33.6 33.3 33.7 34.0 34.0 33.7 33.6 33.4 33.7 33.8 34.1 34.0 33.7 33.3 33.4 33.4 34.0 33.8 34.6 11 33.8 34.0 33.6 33.4 33.3 33.4 33.6 33.7 33.3 33.3 33.3 33.1 33.4 33.6 33.3 33.0 32.7 32.7 32.9 33.1 33.1 33.1 32.7 32.7 33.3 34.0 12 32.1 32.4 33.0 33.1 32.7 32.4 32.5 32.6 32.8 33.1 32.9 32.6 32.6 32.6 32.3 33.6 33.2 33.0 32.9 33.0 33.0 33.2 33.3 33.1 32.8 33.6 13 32.8 32.7 32.8 33.2 33.4 33.1 32.9 33.1 33.1 33.3 33.5 33.3 33.2 32.8 32.8 32.9 33.2 33.1 33.4 33.1 33.1 33.2 33.4 33.6 33.1 33.6 14 33.1 33.7 33.3 33.3 33.3 33.4 33.6 33.4 33.4 32.9 33.0 33.1 33.3 33.6 33.3 33.0 33.1 32.8 33.0 32.9 32.7 32.7 32.5 32.6 33.1 33.7 15 31.0 32.8 33.1 31.0 30.1 30.3 30.6 32.4 32.5 32.5 32.4 32.5 32.6 32.7 32.6 32.8 32.5 32.6 32.2 32.5 32.6 32.6 32.9 31.9 32.2 33.1 16 31.1 32.5 31.9 32.9 33.1 32.8 32.1 31.8 31.0 31.2 31.8 32.3 32.2 32.5 32.0 32.2 32.2 32.2 32.3 32.1 31.8 31.5 31.5 31.7 32.0 33.1 17 32.0 32.2 32.4 31.9 31.8 31.8 31.2 31.9 31.8 31.6 31.2 31.1 30.9 31.0 31.5 31.2 31.0 30.8 30.5 30.7 30.9 31.2 31.2 31.1 31.4 32.4 18 31.0 31.0 31.3 31.6 31.4 31.8 31.7 31.3 31.3 31.4 31.3 31.3 30.5 30.0 30.1 30.1 30.4 31.0 31.2 31.4 31.9 32.5 33.0 33.3 31.3 33.3 19 33.6 33.6 33.6 33.5 33.5 33.9 33.6 33.6 33.8 33.5 33.2 33.4 33.4 33.7 33.9 33.7 33.5 33.5 33.7 33.8 34.1 33.9 33.7 33.4 33.6 34.1 20 33.5 33.5 33.4 33.4 32.7 32.7 32.7 32.8 33.1 33.1 32.8 32.6 32.2 34.0 33.1 33.1 33.0 33.1 33.4 33.2 33.2 32.8 32.9 33.1 33.1 34.0 21 33.0 33.6 33.8 33.6 33.5 33.6 33.2 33.2 33.2 33.3 33.2 33.5 33.9 34.4 35.2 36.1 36.4 36.6 36.3 35.6 35.1 35.3 35.6 35.6 34.4 36.6 22 35.7 34.9 35.2 35.0 36.2 36.5 36.2 35.9 35.7 35.6 35.9 36.0 36.2 35.7 35.3 34.3 33.7 34.2 34.2 34.5 34.4 34.0 34.3 34.4 35.2 36.5 23 34.5 34.5 34.2 33.7 33.7 33.4 33.5 33.8 34.0 34.3 33.8 33.7 33.4 33.2 33.8 34.1 35.0 31.9 29.3 32.4 29.6 30.2 31.6 34.2 33.2 35.0 24 34.1 34.4 34.2 33.2 34.7 35.1 34.5 31.9 30.6 30.0 30.3 30.3 30.5 30.3 30.5 30.1 32.0 31.8 31.4 31.9 31.9 31.5 31.6 31.6 32.0 35.1 25 31.6 31.6 31.7 31.8 32.0 31.2 30.8 30.7 30.7 31.2 31.2 31.2 30.9 31.2 31.2 31.1 31.3 31.2 31.2 31.1 30.9 30.8 30.7 30.2 31.2 32.0 26 30.6 30.6 30.3 29.3 29.0 28.7 29.3 29.5 30.4 29.9 28.8 28.4 29.2 29.8 30.0 30.0 32.6 30.8 31.2 30.6 30.3 30.8 31.1 31.0 30.1 32.6 27 32.8 31.6 31.6 31.4 31.7 31.4 31.7 31.5 31.9 31.8 30.9 31.9 31.4 31.6 32.8 32.9 32.5 32.1 31.8 31.9 31.2 31.1 30.5 30.5 31.7 32.9 28 30.4 30.4 30.4 30.3 30.1 30.3 30.0 30.0 30.0 30.4 30.3 30.0 31.0 31.3 30.5 30.5 30.3 30.5 30.8 31.2 32.2 32.1 32.1 32.1 30.7 32.2 29 31.7 31.4 30.5 29.2 29.9 30.0 29.8 30.1 30.2 30.2 29.9 30.2 30.5 30.8 30.9 31.1 31.7 31.6 31.9 31.9 31.8 31.8 31.6 31.6 30.8 31.9 30 31.6 31.8 32.1 32.4 32.6 32.3 32.6 32.5 32.6 32.3 32.5 32.3 32.9 33.0 33.0 33.0 33.2 33.8 33.5 33.3 33.6 33.2 33.0 33.0 32.8 33.8 MEAN 32.7 32.8 32.7 32.5 32.4 32.5 32.5 32.4 32.4 32.5 32.4 32.5 32.5 32.7 32.6 32.8 32.9 32.8 32.8 32.9 32.8 32.8 32.7 32.8 32.6 33.9 MIXING RATIO OF SURFACE OZONE IN PARTS PER BILLION STATION SOUTH POLE MONTH OCTOBER YEAR 2002 EQUIPMENT DASIBI GMT 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 MEAN MAX DATE 1 33.3 33.1 33.0 33.1 32.5 32.8 33.1 32.2 33.1 33.2 33.1 32.8 33.3 33.9 33.5 33.3 33.3 33.0 33.1 33.6 33.6 33.7 33.8 33.0 33.2 33.9 2 33.0 33.8 33.5 33.6 33.8 33.3 33.2 33.3 33.2 33.1 33.0 33.4 33.2 32.9 33.6 33.6 33.8 33.0 33.8 33.3 33.8 33.6 33.6 33.4 33.4 33.8 3 33.6 33.3 33.1 33.0 32.8 33.0 32.5 32.5 32.2 32.6 32.3 32.1 32.4 32.2 31.8 32.0 32.2 32.4 32.5 32.3 32.3 32.3 32.2 32.4 32.5 33.6 4 31.9 31.9 31.9 31.9 31.1 31.1 31.1 30.4 31.1 31.1 31.1 31.1 31.1 31.1 31.1 31.1 31.1 31.1 31.1 31.1 31.0 31.6 30.4 31.0 31.2 31.9 5 31.1 31.5 31.2 31.7 32.1 31.8 32.0 32.0 32.1 32.6 32.0 33.0 32.9 32.9 32.7 32.9 32.9 33.6 33.6 33.9 34.2 33.4 34.4 34.5 32.7 34.5 6 34.4 34.2 34.3 33.7 33.6 33.7 33.8 33.3 33.6 33.8 33.5 33.2 33.5 33.8 33.9 34.0 33.8 33.4 33.5 33.3 33.3 32.7 32.9 32.8 33.6 34.4 7 32.9 32.4 32.4 31.7 31.9 32.5 32.9 32.9 32.6 33.7 33.1 33.7 34.1 34.5 34.8 34.9 34.9 35.5 35.4 35.9 35.8 35.7 35.5 35.9 34.0 35.9 8 35.9 35.9 35.7 35.6 35.7 35.2 34.9 34.2 34.0 33.7 33.7 33.8 34.0 33.7 34.2 33.8 35.7 34.1 33.9 34.2 33.9 34.1 34.0 33.9 34.5 35.9 9 33.7 33.8 33.6 33.0 33.4 33.7 34.0 34.0 33.8 33.9 34.1 32.8 34.0 34.2 33.6 33.6 33.2 32.7 33.2 33.4 33.2 33.7 33.7 33.7 33.6 34.2 10 33.6 33.7 34.1 33.5 33.9 34.0 35.0 34.1 34.7 35.0 33.9 34.4 34.3 34.2 33.7 33.9 33.1 33.2 33.5 33.3 32.7 32.5 32.0 32.4 33.7 35.0 11 32.6 32.7 32.8 32.1 32.6 33.0 33.0 32.3 33.0 32.1 32.1 32.5 32.4 32.7 33.6 33.2 33.5 33.2 32.7 32.9 33.1 33.1 32.5 32.9 32.8 33.6 12 32.5 32.9 32.3 32.7 32.7 32.5 32.5 31.9 31.2 31.0 30.9 30.9 31.0 30.7 30.5 30.6 30.5 30.5 30.2 30.5 31.1 31.1 31.1 31.0 31.4 32.9 13 30.7 30.6 30.7 30.1 30.0 30.3 30.4 31.3 30.6 30.1 28.3 28.2 27.8 27.9 28.1 28.4 27.9 27.9 27.3 27.2 26.8 30.9 30.7 29.5 29.2 31.3 14 29.8 29.8 30.1 29.6 29.0 29.0 29.6 30.2 30.1 31.2 30.7 31.5 31.5 31.5 31.5 31.5 31.6 31.8 31.5 31.3 30.6 31.2 30.9 31.1 30.7 31.8 15 31.1 30.5 31.1 30.8 30.9 31.6 32.5 32.0 31.6 31.4 31.4 31.4 30.9 30.8 30.9 30.8 30.5 30.7 30.7 31.0 30.5 30.7 29.7 30.0 31.0 32.5 16 29.8 29.1 29.7 30.4 30.1 29.8 30.3 30.0 30.4 30.2 30.9 31.2 30.3 30.8 30.8 29.9 30.5 31.2 31.2 30.5 30.8 30.8 30.4 30.1 30.4 31.2 17 30.7 31.4 30.5 30.9 31.6 31.2 31.2 31.1 30.9 30.8 30.8 30.8 30.8 30.0 30.6 30.1 30.4 30.7 30.3 30.6 30.1 30.5 30.3 30.6 30.7 31.6 18 30.9 30.8 31.3 31.3 31.4 32.0 32.4 33.0 32.4 33.7 33.6 33.2 33.1 32.8 32.6 32.5 31.9 32.3 32.3 32.1 31.9 31.5 31.7 31.4 32.2 33.7 19 31.3 31.7 31.5 31.0 31.5 31.4 31.3 31.0 31.2 30.0 31.2 31.0 31.9 31.3 31.3 31.9 31.9 31.8 31.5 32.1 32.2 32.4 32.4 32.1 31.5 32.4 20 32.2 31.7 31.8 31.9 31.2 31.6 31.4 33.1 31.3 31.9 31.8 32.2 32.0 31.9 31.2 31.9 32.3 31.9 32.3 32.3 32.3 31.9 31.7 32.5 31.9 33.1 21 31.9 31.9 31.9 31.9 31.2 31.2 31.2 31.2 31.2 30.5 31.2 30.5 31.2 31.2 31.2 30.5 30.5 30.5 30.5 30.5 30.5 30.5 30.5 30.5 31.0 31.9 22 30.5 29.8 29.8 29.8 29.8 29.8 29.8 29.8 30.5 30.5 30.5 30.5 30.5 30.5 31.3 30.6 30.6 30.6 30.6 30.6 30.6 30.6 30.6 30.6 30.4 31.3 23 30.5 30.5 31.3 31.3 31.3 31.3 31.3 31.3 31.3 31.3 31.3 31.3 31.3 31.3 31.3 31.3 31.3 31.3 31.3 31.3 31.3 31.3 31.3 31.3 31.2 31.3 24 31.3 31.3 31.3 31.3 31.3 31.3 31.3 31.3 31.3 31.3 31.3 31.3 31.3 31.3 31.3 32.1 32.1 32.1 32.1 32.1 32.1 32.1 32.8 32.1 31.6 32.8 25 32.0 32.0 32.0 32.0 32.0 32.0 32.0 32.0 32.0 32.0 31.3 32.0 32.0 32.0 32.0 32.1 32.1 31.3 32.1 31.3 30.6 29.9 29.9 29.9 31.6 32.1 26 31.3 30.6 32.1 31.3 31.3 30.6 30.6 29.9 29.9 29.2 29.9 29.2 29.2 29.2 29.2 29.2 29.9 29.9 29.9 30.6 30.6 29.9 31.4 31.4 30.3 32.1 27 29.9 29.2 29.2 29.2 28.4 28.4 28.4 28.4 27.7 27.0 27.0 26.3 26.3 26.3 26.3 26.3 26.3 26.3 26.3 26.3 27.0 27.0 27.0 27.0 27.4 29.9 28 27.7 27.7 28.5 28.5 28.5 28.5 29.2 29.9 30.7 30.6 31.4 31.4 31.4 31.4 31.4 31.4 31.4 31.4 31.4 30.6 29.9 29.2 28.5 28.5 29.9 31.4 29 29.0 30.4 30.9 30.6 31.9 32.4 32.5 31.5 32.1 31.5 31.8 31.5 31.5 32.0 32.0 32.5 32.2 32.4 32.3 32.0 31.7 31.1 31.3 30.7 31.6 32.5 30 31.8 29.9 30.1 29.2 28.9 29.2 28.8 28.5 29.1 29.5 29.8 30.5 30.4 29.8 30.2 30.5 29.4 31.4 30.2 29.8 29.9 30.4 30.1 29.6 29.9 31.8 31 30.5 30.5 30.6 30.7 30.7 31.0 31.0 31.0 31.6 31.8 31.3 31.3 31.1 31.0 31.0 30.8 30.6 30.6 30.5 30.2 30.6 30.4 30.1 29.9 30.8 31.8 MEAN 31.7 31.6 31.7 31.5 31.5 31.6 31.7 31.6 31.6 31.6 31.6 31.6 31.6 31.6 31.6 31.7 31.7 31.7 31.6 31.6 31.6 31.6 31.5 31.5 31.6 32.8 MIXING RATIO OF SURFACE OZONE IN PARTS PER BILLION STATION SOUTH POLE MONTH NOVEMBER YEAR 2002 EQUIPMENT DASIBI GMT 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 MEAN MAX DATE 1 29.8 29.6 29.1 28.7 28.7 28.7 28.8 28.8 28.8 29.1 29.2 28.9 28.4 28.5 28.1 28.2 28.0 27.4 27.5 27.0 27.4 28.4 29.7 30.1 28.6 30.1 2 30.6 30.7 30.9 30.8 31.1 30.7 30.4 29.0 29.1 29.3 29.4 29.3 29.8 28.2 29.5 29.4 29.7 29.2 29.7 29.4 29.8 30.7 30.7 30.9 29.9 31.1 3 30.5 30.3 30.5 30.5 31.1 30.8 30.9 30.9 31.5 31.6 31.8 31.9 32.2 32.3 32.5 32.6 32.5 32.3 32.5 32.4 32.6 32.6 32.4 32.6 31.7 32.6 4 33.1 32.9 33.6 33.2 32.2 33.8 34.0 33.9 34.2 34.3 34.3 34.1 33.7 34.9 34.8 34.2 34.6 35.1 34.6 34.9 35.3 35.3 35.0 34.7 34.2 35.3 5 34.7 34.7 34.4 33.8 33.8 34.0 33.6 33.4 33.0 32.7 32.4 32.1 31.8 31.8 31.4 33.1 30.6 30.9 30.2 29.6 29.3 29.4 28.5 28.9 32.0 34.7 6 29.4 29.2 29.3 29.2 29.2 29.5 29.9 30.2 30.4 30.7 30.7 30.7 31.0 31.3 31.6 31.9 32.4 33.0 33.7 33.8 34.4 34.5 34.7 35.0 31.5 35.0 7 35.1 35.1 34.9 34.9 35.1 35.1 35.1 34.2 34.2 34.4 34.6 34.7 34.9 35.0 35.3 35.4 35.2 35.1 35.2 34.6 34.5 34.8 34.2 34.5 34.8 35.4 8 34.8 34.4 34.7 34.6 34.5 34.2 34.3 34.3 34.0 33.7 34.5 34.5 33.8 34.3 34.0 34.3 33.9 34.3 34.3 34.5 34.2 34.9 34.8 34.9 34.4 34.9 9 34.7 34.4 34.3 34.3 33.6 32.7 32.7 33.0 33.5 33.4 33.1 33.4 34.1 34.7 35.0 35.1 35.1 35.8 35.9 36.1 36.3 36.2 36.1 36.0 34.6 36.3 10 36.2 36.3 36.5 36.7 36.4 36.5 36.7 36.5 36.5 36.9 36.6 36.7 36.9 37.0 37.1 37.1 37.1 37.1 37.1 37.3 37.4 37.4 37.6 37.6 36.9 37.6 11 37.6 37.5 37.2 36.4 35.3 35.2 35.8 36.1 35.6 35.6 35.6 35.6 36.1 36.1 36.2 36.4 36.4 36.7 36.3 36.8 36.7 36.6 36.9 36.6 36.3 37.6 12 36.4 36.3 37.1 36.4 36.0 36.1 36.4 35.6 35.6 35.7 36.0 36.1 36.1 36.3 36.2 36.9 36.9 37.1 37.6 38.1 38.1 38.2 38.4 38.5 36.8 38.5 13 38.1 37.4 36.5 34.9 34.7 32.5 32.0 31.1 30.7 30.4 30.1 29.7 29.6 29.3 29.0 28.5 28.4 27.9 28.1 27.8 27.6 27.8 28.2 28.7 30.8 38.1 14 29.1 29.1 29.4 29.2 29.1 29.9 30.3 32.0 33.7 32.9 34.2 36.0 36.7 36.8 37.8 38.7 39.3 39.4 40.1 39.8 40.1 40.2 40.5 40.7 35.2 40.7 15 40.4 40.2 40.1 39.8 39.6 39.6 39.2 39.1 39.3 39.1 39.0 39.1 39.1 38.9 38.6 38.2 38.2 38.2 38.2 34.2 37.9 38.3 39.0 36.8 38.8 40.4 16 29.7 28.8 29.1 28.8 28.6 28.7 29.1 29.6 29.0 29.1 29.1 29.3 29.4 29.3 29.5 29.7 29.7 30.4 31.7 32.6 33.7 34.8 35.4 35.8 30.5 35.8 17 36.1 37.0 37.9 37.6 35.7 35.0 35.7 34.8 33.8 34.5 34.7 34.4 34.0 27.5 26.2 24.7 24.3 23.9 23.6 23.4 23.6 23.6 23.6 23.1 30.4 37.9 18 23.7 23.7 23.9 23.5 23.6 23.6 24.2 24.2 24.2 23.1 22.6 23.4 26.7 35.1 37.5 37.8 38.0 38.2 37.9 38.3 38.7 38.9 38.7 38.7 30.3 38.9 19 39.4 41.3 41.9 42.2 42.6 42.7 41.0 37.6 37.5 38.0 39.9 41.3 42.1 42.1 42.6 42.4 41.5 40.7 39.8 37.9 36.2 35.2 34.9 34.8 39.8 42.7 20 34.3 34.5 34.7 34.5 34.7 34.9 35.2 35.3 35.3 34.6 34.6 35.1 34.4 33.0 32.9 32.4 32.4 32.5 32.9 32.9 33.0 33.4 33.7 33.8 34.0 35.3 21 34.0 33.7 34.1 33.6 33.4 33.4 33.0 32.4 32.2 32.7 33.3 33.0 31.8 30.6 27.6 22.3 21.8 22.4 22.3 22.1 21.4 22.1 23.1 26.7 28.9 34.1 22 29.5 29.7 30.9 31.3 32.3 33.3 33.0 33.1 32.6 32.2 31.9 31.3 30.2 29.6 28.7 28.6 28.4 27.7 27.2 26.9 26.7 26.3 26.0 25.6 29.7 33.3 23 25.6 25.6 25.5 25.6 25.6 26.3 26.1 26.1 26.3 26.6 26.9 27.6 27.7 27.7 29.1 28.8 28.6 29.0 30.2 31.5 32.2 32.6 32.8 32.1 28.2 32.8 24 31.8 29.8 29.1 29.0 28.9 29.3 29.1 29.1 29.3 29.6 30.0 30.3 30.0 29.9 30.3 32.2 34.2 35.5 35.5 35.3 34.6 33.8 32.8 31.6 31.3 35.5 25 30.0 28.4 27.4 27.0 26.4 26.5 27.1 27.8 28.1 28.0 28.3 28.7 29.3 29.9 30.7 31.6 31.9 31.9 32.0 32.3 32.5 32.5 32.5 32.2 29.7 32.5 26 31.8 31.1 30.5 29.7 28.5 28.3 29.0 30.3 31.7 32.1 31.8 28.5 25.6 24.8 23.9 23.2 22.5 22.6 22.6 22.7 22.9 23.2 23.3 23.9 26.9 32.1 27 24.5 25.4 25.9 25.8 25.9 26.8 27.5 27.7 27.7 28.1 28.5 28.5 28.3 28.3 28.0 28.3 28.6 28.4 28.4 27.8 26.8 25.6 26.4 26.6 27.2 28.6 28 26.1 25.1 24.2 24.0 24.5 25.5 26.7 27.3 27.1 27.6 28.0 28.3 28.7 29.0 28.7 30.2 30.7 31.9 32.9 33.9 34.2 34.5 34.7 34.5 29.1 34.7 29 34.5 34.4 34.6 35.1 35.9 36.8 37.4 37.6 38.5 39.5 40.0 40.5 40.6 40.8 40.9 41.1 41.7 42.1 42.4 42.8 42.9 42.6 42.9 42.8 39.5 42.9 30 43.0 42.6 41.7 40.0 38.9 38.1 37.3 36.9 37.0 38.4 39.5 39.9 39.1 38.7 38.7 38.3 38.0 37.5 36.6 35.6 34.3 33.1 31.6 30.1 37.7 43.0 MEAN 32.8 32.6 32.7 32.4 32.2 32.3 32.4 32.3 32.3 32.5 32.7 32.8 32.7 32.7 32.7 32.7 32.7 32.8 32.9 32.7 32.8 32.9 33.0 33.0 32.7 35.9 MIXING RATIO OF SURFACE OZONE IN PARTS PER BILLION STATION SOUTH POLE MONTH DECEMBER YEAR 2002 EQUIPMENT DASIBI GMT 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 MEAN MAX DATE 1 28.6 28.3 27.3 26.2 25.8 26.0 26.4 26.4 26.5 26.4 26.3 26.8 26.9 27.2 27.9 28.2 28.5 28.6 28.7 28.6 28.2 26.6 26.0 26.3 27.2 28.7 2 26.6 26.1 25.1 27.0 26.9 27.9 29.4 28.5 27.7 26.5 26.8 28.3 28.7 28.4 30.7 28.2 29.7 30.4 30.5 30.7 30.1 30.1 30.8 29.9 28.5 30.8 3 29.3 29.3 28.6 29.3 29.3 30.7 32.2 32.9 33.6 34.4 35.1 35.1 35.8 35.8 35.8 35.8 35.8 35.8 35.8 35.8 35.0 34.3 33.5 32.8 33.4 35.8 4 32.8 32.9 32.1 31.4 30.7 31.4 32.2 32.2 32.2 32.2 32.2 33.7 33.7 33.7 33.7 34.5 34.5 35.2 35.3 35.3 35.3 35.3 35.3 35.3 33.5 35.3 5 35.3 34.6 33.9 33.2 33.2 33.9 33.9 34.7 34.7 35.4 35.5 35.5 36.2 36.2 37.0 37.7 37.7 37.7 37.7 37.8 37.8 37.8 37.8 37.1 35.9 37.8 6 37.1 36.4 35.6 36.4 34.2 34.9 35.0 35.0 35.0 35.0 35.0 35.8 35.8 35.8 35.8 35.8 35.8 35.8 35.8 35.9 35.9 35.9 35.9 35.9 35.6 37.1 7 999.9999.9999.9999.9999.9999.9999.9999.9999.9999.9999.9999.9999.9999.9999.9999.9 28.0 28.8 28.8 28.8 28.8 28.8 28.9 29.6999.9999.9 8 31.8 33.3 34.0 34.8 34.8 35.5 36.3 36.3 37.0 36.3 36.3 35.6 34.9 34.9 34.2 34.2 33.5 33.5 33.5 32.8 32.1 31.3 30.6 29.2 34.0 37.0 9 28.4 28.4 28.5 28.5999.9999.9999.9999.9999.9999.9999.9999.9999.9999.9999.9999.9999.9999.9999.9999.9999.9 33.1 33.1 32.4999.9999.9 10 32.4 31.7 30.9 31.0 30.2 28.8 28.1 27.3 28.1 28.1 28.1 28.9 30.3 29.6 30.4 31.1 31.9 32.6 33.3 34.8 34.1 34.8 35.6 36.3 31.2 36.3 11 36.3 36.3 36.3 35.6 35.5 35.5 35.5 35.5 35.5 36.2 36.2 35.5 35.5 34.7 34.0 34.0 34.0 34.0 34.0 34.0 34.0 32.5 34.0 31.7 34.9 36.3 12 31.0 31.0 32.5 32.5 32.4 32.4 31.7 31.0 31.0 30.9 30.2 28.7 28.0 28.0 28.0 27.2 27.2 28.0 30.1 30.9 30.1 29.4 30.1 30.1 30.1 32.5 13 30.1 30.1 30.1 30.8 30.8 30.8 30.8 30.8 30.8 30.8 30.0 28.6 28.6 28.5 27.8 26.3 26.3 27.1 24.9 24.1 25.6 26.3 26.3 26.3 28.4 30.8 14 25.5 25.5 25.5 25.5 24.8 24.0 24.0 24.8 26.2 26.9 27.7 27.7 28.4 29.1 28.4 28.4 28.4 29.1 29.1 28.3 27.6 23.9 24.7 24.6 26.6 29.1 15 23.9 23.9 24.6 23.2 24.6 26.1 27.5 27.5 28.2 28.2 28.2 27.5 27.5 25.3 23.1 22.3 22.3 22.3 22.3 22.3 23.0 23.8 24.5 23.7 24.8 28.2 16 24.5 24.5 24.5 24.4 24.4 23.7 22.2 23.7 23.7 23.7 22.2 21.5 21.5 22.2 22.2 23.6 24.4 25.1 25.1 26.5 28.0 30.2 30.9 31.6 24.8 31.6 17 32.0 32.6 33.1 33.9 34.3 34.8 35.2 34.7 34.0 32.8 33.7 38.2 35.7 29.4 27.2 26.1 25.7 26.3 28.3 29.8 28.1 27.7 26.2 25.5 31.1 38.2 18 24.9 25.2 25.2 25.1 24.2 24.3 22.7 22.0 22.9 24.4 25.5 25.8 25.8 27.5 27.8 27.8 28.5 28.6 28.4 28.2 28.2 28.3 28.7 28.6 26.2 28.7 19 28.4 28.2 28.2 27.7 27.1 26.8 26.8 28.8 29.7 29.9 30.7 30.8 30.8 31.1 31.5 31.0 30.6 29.9 29.4 29.3 28.4 27.7 27.3 25.9 29.0 31.5 20 25.4 22.7 27.5 30.2 32.7 34.3 36.2 37.6 38.1 38.7 37.5 36.7 34.8 34.3 34.3 34.5 34.7 32.8 31.6 31.4 32.2 33.2 34.5 35.6 33.4 38.7 21 36.3 37.2 38.5 40.1 41.2 41.0 42.2 42.8 43.0 42.9 42.8 42.9 43.1 43.6 43.3 43.0 42.0 41.1 40.6 39.6 37.7 37.0 35.9 34.8 40.5 43.6 22 33.9 33.9 33.5 33.9 34.3 34.5 34.7 35.2 35.3 35.2 35.3 35.3 35.3 34.9 34.6 33.9 34.9 35.1 35.9 36.7 37.2 37.4 37.7 37.6 35.3 37.7 23 36.2 35.0 35.3 34.5 35.4 35.7 36.2 36.7 38.5 39.5 39.9 40.0 39.3 39.5 39.3 39.3 39.4 39.3 39.4 40.1 40.0 41.4 42.6 35.7 38.3 42.6 24 34.8 34.0 34.3 32.8 31.7 32.2 32.6 35.2 35.1 31.2 28.1 28.4 29.0 29.5 29.4 29.9 29.5 29.7 30.4 26.8 24.0 22.9 21.6 20.6 29.7 35.2 25 20.1 19.2 18.9 18.4 18.4 18.2 18.6 19.8 20.6 21.2 21.9 22.3 22.6 22.9 23.3 24.0 25.0 25.9 28.0 28.5 28.9 29.9 31.8 33.3 23.4 33.3 26 33.2 32.5 31.8 31.5 31.2 28.0 24.6 25.0 26.1 28.2 28.8 29.1 29.1 28.2 29.1 29.9 29.6 29.6 26.4 21.1 21.1 20.6 20.0 19.5 27.3 33.2 27 19.1 19.0 18.7 18.3 18.7 18.8 18.9 19.2 19.6 20.0 20.9 21.4 22.0 22.7 23.6 24.4 25.3 26.7 24.3 23.1 22.4 22.2 22.5 21.8 21.4 26.7 28 22.1 22.6 22.8 23.1 23.7 24.0 24.5 25.3 25.9 26.4 26.6 26.3 27.4 28.5 28.9 28.9 28.4 25.7 25.2 23.7 24.4 24.0 24.5 25.3 25.3 28.9 29 25.8 26.5 26.7 27.3 27.8 28.6 28.6 27.7 26.7 26.3 26.4 28.4 30.2 30.6 30.9 30.9 31.1 31.0 30.8 30.8 30.7 31.0 31.3999.9 29.0 31.3 30 30.8999.9999.9999.9 26.1 26.3 25.7 24.8 24.4 24.0 23.7 22.7 21.5 21.4 21.5 21.8 21.9 22.1 21.6 21.2 21.5 21.6 21.7 22.0 23.3 30.8 31 22.3 20.6 20.6 20.9 21.4 21.5 21.4 21.3 21.1 21.0 20.7 20.9 21.1 21.6 21.6 21.6 21.3 21.3 21.3 21.3 21.1 21.0 20.8 21.0 21.2 22.3 MEAN 29.3 29.0 29.1 29.2 29.2 29.3 29.4 29.7 30.0 30.1 30.1 30.3 30.3 30.2 30.2 30.2 30.2 30.3 30.2 29.9 29.7 29.7 29.8 29.3 29.8 33.4