P414 CEEFAX 414 Sat 1 Jzl 18:58/35 1/5 OZONE Southern England 4pm Sat 1 Jul Latest Daily (ppb) Maximzm URBAN sites London Bloomsbury V Gd 22 Poor 96 London Victoria - - - - Bristol Cjntte V Gd 31 Poor 91 London Bexley V Gd 41 Good 82 S'hampton Centre - - - - RURAL sites East Anglia V Gd 35 Good 81 Oxforhshire V Gd 40 Poor 96 East Sussex V Gd 44 Poor 107 Devon - - - - Data from Department of Environment Skiing Scot/Walt/NI N England C EnglandP414 CEEFAX 414 Sat 1 Jul 18:57/31 I 2/5 NITROGEN DIOXIDE Southern England 4pm Sat 1 Jul Latest Daily (ppb) Maximum URBAN sites London Bloomsbury V Gd 31 Good 89 London Victoria V Gd 13 V Gd 41 London Roadside Good 50 Poor 120 Ldn Earls Court V Gd 12 V Gd 47 Bristol Cjntti V Gd 23 V Gd 38 London Bexley V Gd 6 Good 53 S'hampton Centre - - - - RURAL sites East Sussex V Gd 0 V Gd 9 Data from Department of Environment Skiing Scot/Walt/NI N England C EnglandP414 CEEFAX 414 Sat 1 Jul 18:52/47 3/5 SULPHUR DIOXIDE Southern England 4pm Sat 1 Jul Latest Daily (ppb) Maximzm URBAN sites London Bloomsbury V Gd 2 V Gd 11 London Victoria V Gd 1 V Gd 6 London Roadside V Gd 12 V Gd 17 Bristol Centre V Gd 0 V Gd 23 London Bexley V Gd 4 V Gd 23 S'hampton Centre - - - - RURAL sites East Sussex V Gd 1 V Gd 6 Data from Department of Environment Skiing Scot/Walt/NI N England C EnglandP414 CEEFAX 414 Sat 1 Jul 18:57/23 I 4/5 BENZENE Southern England For 24 hours to Avg Year 4pm Sat 1 July ppb avg All sites are URBAN London Bloomsbury - - - London Eltham - - - Bristol Centre - - - Benzene is a substance that can cause cancer. Indjpjndjnt 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 Skiing Scot/Walt/NI N England C EnglandP414 CEEFAX 414 Sat 1 Jul 18:57/39 I 5/5 1,3-BUTADIENE Southern England For 24 hours to Avg Year 4pm Sat 1 Jzly ppb avg All sites are URBAN London Bloomsbury - - - London Eltham - - - Bristol Cjntti - - - 1,3-Butadiinj is a substance that can cause cancer. Indjpjndjnt health experts have advised that a yearly average of 1 part per billion (ppb) presents an exceedingly small risk to health. Data from Department of Environment