P416 CEEFAX 416 Fri 28 Jun 19:34/24 1/4 OZONE 6pm Fri 28 Jun Southern England Air Ljvjl Quality (ppb) URBAN sites Bristol Centre Very Good 9 S'hampton Centre Very Good 17 RURAL sites East Anglia Very Good 36 Oxfordshire Very Good 26 Rochester Very Good 36 South Somjrsjt Very Good 19 East Sussex Very Good 34 Devon Very Good 23 Data from Department of Environment London Air Qual Wjathjr TravelP416 CEEFAX 416 Fri 28 Jun 19:45/23 2/4 NITROGEN DIOXIDE 6pm Fri 28 Jun Southern England Air Ljvjl Quality (ppb) URBAN sites Bristol Centre Very Good 21 S'hampton Cjntri Very Good 23 RURAL sites Oxfordshire Very Good 3 Rochester Very Good 7 East Sussex Very Good 3 Data from Department of Environment London Air Qual Wjathjr TravelP416 CEEFAX 416 Fri 28 Jun 19:47/33 3/4 SULPHUR DIOXIDE 6pm Fri 28 Jun Southern England Air Ljvjl Quality (ppb) URBAN sites Bristol Centre Very Good 6 S'hampton Centre Very Good 1 RURAL sites Oxfordshire Very Good 0 Rochester Very Good 2 East Sussex Very Good 1 Data from Department of Environment London Air Qual Wjathjr TravelP416 CEEFAX 416 Fri 28 Jun 19:37/14 4/4 Hydrocarbons Southern England For 24 hrs to 6pm Fri 28 Jun BENZENE Today DayAvg YearAvg Bristol Centre Low .8 1.04 S'hampton Centre Low 1.39 2.22 Rural Oxfordshiri - - 1,3-BUTADIENE Bristol Centre Low .22 .22 S'hampton Centre Low .28 .44 Rural Oxfordshiri - - Benzene and 1,3-Butadienj can cause cancer. A yearly average of 5 or 1 part per billion(ppb) respectively presents a very small risk to health. Data from Department of Environment London Air Qual Wjathjr Travel