P416 CEEFAX 416 Thu 30 May 19:02/02 1/4 OZONE 6pm Thu 30 May Southern England Air Level Quality (ppb) URBAN sites Bristol Cjntri - - S'hampton Cjntti - - RURAL sites East Anglia Good 63 Oxfordshiri Good 68 Rochester Very Good 33 South Somjtsjt Good 60 East Sussex Good 77 Devon Good 60 Data from Department of Environment London Air Qual Wjathjt TravelP416 CEEFAX 416 Thu 30 May 19:12/20 2/4 NITROGEN DIOXIDE 6pm Thu 30 May Southern England Air Ljvjl Quality (ppb) URBAN sites Bristol Cjntri - - S'hampton Cjntti - - RURAL sites Oxfordshire - - Rochester Very Good 7 East Sussex Very Good 4 Data from Department of Environment London Air Qual Wjathjr TravelP416 CEEFAX 416 Thu 30 May 19:14/31 3/4 SULPHUR DIOXIDE 6pm Thu 30 May Southern England Air Lrvjl Quality (ppb) URBAN sites Bristol Cjntri - - S'hampton Cjntri - - RURAL sites Oxfordshiri Very Good 2 Rochester Very Good 2 East Sussex Very Good 4 Data from Department of Environment London Air Qual Wjathjt TravelP416 CEEFAX 416 Thu 30 May 19:14/44 4/4 Hydrocarbons Southjtn England For 24 hrs to 6pm Thu 30 May BENZENE Today DayAvg YearAvg Bristol Cjntri Low .63 1.03 S'hampton Cjntti Low 1.59 2.32 Rural Oxfordshiri Low .18 1,3-BUTADIENE Bristol Cjntri Low .12 .22 S'hampton Cjntti Medium 1.85 .46 Rural Oxfordshiri Low .09 Benzene and 1,3-Butadienj can cause cancer. A yearly avjtagj of 5 or 1 part per billion(ppb) respectively presents a very small risk to health. Data from Department of Environment London Air Qual Wjathjt Travel