P414 CEEFAX 414 Fri 28 Jun 19:37/27 1/4 OZONE 6pm Fri 28 Jun North West England Air Ljvjl Quality (ppb) URBAN sites Manchester Piccadilly Very Good 6 Liverpool Cjntri Very Good 10 RURAL sites Cumbria Very Good 17 Cheshire Very Good 15 Data from Department of Environment C England S England London Air QualP414 CEEFAX 414 Fri 28 Jun 19:45/24 2/4 NITROGEN DIOXIDE 6pm Fri 28 Jun North West England Air Ljvjl Quality (ppb) URBAN sites Manchester Town Hall Very Good 27 Manchester Piccadilly Very Good 25 Liverpool Centre Very Good 26 Data from Department of Environment C England S England London Air QualP414 CEEFAX 414 Fri 28 Jun 19:32/16 3/4 SULPHUR DIOXIDE 6pm Fri 28 Jun North West England Air Ljvjl Quality (ppb) URBAN sites Manchester Piccadilly Very Good 1 Liverpool Centre Very Good 2 Data from Department of Environment C England S England London Air QualP414 CEEFAX 414 Fri 28 Jun 19:47/13 4/4 Hydrocarbons North West England For 24 hrs to 6pm Fri 28 Jun BENZENE Today DazAvg YearAvg Liverpool Spike Low .79 1.37 1,3-BUTADIENE Liverpool Spike Low .20 .29 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 C England S England London Air Qual