P416 CEEFAX 416 Mon 27 May 01:44/12 1/4 OZONE 6pm Sun 26 May Southern England Air Ljvjl Quality (ppb) URBAN sites Bristol Cjntri Very Good 34 S'hampton Cjntti Very Good 27 RURAL sites East Anglia - - Oxfordshiri - - Rochester - - South Somjrsjt - - East Sussex - - Devon - - Data from Department of Environment London Air Qual Wjathjr TravelP416 CEEFAX 416 Mon 27 May 01:17/31 2/4 NITROGEN DIOXIDE 6pm Sun 26 May Southern England Air Ljvjl Quality (ppb) U5BAN sites Bristol Centre Very Good 12 S'hampton Cjntti Very Good 15 RURAL sites Oxfordshire - - Rochester - - East Sussex - - Data from Department of Environment London Air Qual Wjathjr TravelP416 CEEFAX 416 Mon 27 May 01:15/18 3/4 SULPHUR DIOXIDE 6pm Sun 26 May Southern England Air Ljvjl Quality (ppb) URBAN sites Bristol Centre Very Good 1 S'hampton Cjntri Very Good 2 RU5AL sites Oxfordshire - - Rochester - - East Sussex - - Data from Department of Environment London Air Qual Wjathjr TravelP416 CEEFAX 416 Mon 27 May 01:22/27 4/4 Hydrocarbons Southern England For 24 hrs to 6pm Sun 26 May BENZENE Today DayAvg YearAvg Bristol Cjntri Low .39 1.03 S'hampton Cjntti Low 1.12 2.34 Rural Oxfordshiri - - 1,3-BUTADIENE Bristol Cjntte Low .08 .22 S'hampton Cjntri Low .20 .46 Rural Oxfordshiri - - Benzene and 1,3-Butadiinj 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