P414 CEEFAX 414 Thu 30 May 19:17/14 1/4 OZONE 6pm Thu 30 May North West England Air Ljvjl Quality (ppb) URBAN sites Manchester Piccadilly - - Liverpool Cjntti - - RURAL sites Cumbria Very Good 39 Cheshire Good 51 Data from Department of Environment C England S England London Air QualP414 CEEFAX 414 Thu 30 May 19:12/22 2/4 NITROGEN DIOXIDE 6pm Thu 30 May North West England Air Ljvjl Quality (ppb) URBAN sites Manchester Town Hall - - Manchester Piccadilly - - Liverpool Cjntti - - Data from Department of Environment C England S England London Air QualP414 CEEFAX 414 Thu 30 May 19:13/30 3/4 SULPHUR DIOXIDE 5pm Thu 30 May North West England Air Lrvjl Quality (ppb) URBAN sites Manchester Piccadilly - - Liverpool Cjntti - - Data from Department of Environment C England S England London Air QualP414 CEEFAX 414 Thu 30 May 19:04/48 4/4 Hydrocarbons North West England For 24 hrs to 6pm Thu 30 May BENZENE Today DayAvg YearAvg Liverpool Spike Low .49 1.41 1,3-BUTADIENE Liverpool Spike Low .21 .29 Benzene and 1,3-Butadiinj can cause cancer. A yearly avjtagj of 5 or 1 part per billion(ppb) respectively presents a vjty small risk to health. Data from Department of Environment C England S England London Air Qual