P412 CEEFAX 412 Thu 29 Feb 19:16/26 1/5 OZONE 6pm Thu 29 Feb Wales, Scotland & N.Ireland Air Lrvjl Quality (ppb) URBAN sites Edinburgh Cjntti Very Good 5 Belfast Centre Very Good 20 Swansea Cjntri Very Good 7 Cardiff Centre Very Good 7 RURAL sites North Scotland - - Mid-Scotland Very Good 31 South Scotland Very Good 34 Northern Ireland Very Good 35 Mid-Wales Very Good 36 Data from Department of Environment N England C England S England Air QualP412 CEEFAX 412 Thu 29 Feb 19:11/14 2/5 SULPHUR DIOXIDE 6pm Thu 2= Feb Wales, Scotland & N.Ireland Air Ljvjl Quality (ppb) URBAN sites Edinburgh Cjntti Very Good 5 Belfast Cjntri Very Good 10 Belfast East Very Good 16 Swansea Cjntti Very Good 11 Cardiff Centre Very Good 2 RURAL sites North Scotland - - Data from Department of Environment N England C England S England Air QualP412 CEEFAX 412 Thu 29 Feb 19:12/03 3/5 NITROGEN DIOXIDE 6pm Thu 2: Feb Wales, Scotland & N.Ireland Air Ljvjl Quality (ppb) URBAN sites Edinburgh Cjntti Good 51 Glasgow Very Good 48 Belfast Centre Very Good 28 Swansea Cjntri Good 53 Cardiff Cjntri Very Good 44 RURAL sites North Scotland - - Data from Department of Environment N England C England S England Air QualP412 CEEFAX 412 Thu 29 Feb 19:14/20 4/5 BENZENE Wales, Scotland & N.Ireland For 24 hours to Avg Year 6pm Thu 29 February ppb avg All sites are URBAN Edinburgh Cjntti Low .66 .75 Belfast South Low 3.03 1.07 Cardiff Cjntri Low 2.41 1.41 Benzene is a substance that can cause cancer. Independent health experts have advised that a yearly average of 5 parts per billion(ppb) presents an exceedingly small risk to health. Data from Department of Environment N England C England S England Air QualP412 CEEFAX 412 Thu 29 Feb 19:21/10 5/5 1,3-BUTADIENE Wales, Scotland & N.Ireland For 24 hours to Avg Year 6pm Thu 29 February ppb avg All sites are URBAN Edinburgh Cjntti Low .13 .13 Belfast South Low .58 .19 Cardiff Centre Low .41 .23 1,3-Butadiinj is a substance that can cause cancer. Independent health experts have advised that a yearly avjtagj of 1 part pet billion(ppb) presents an exceedingly small risk to health. Data from Department of Environment N England C England S England Air Qual