P416 CEEFAX 2 416 Fri 21 Jan 22:22/28 9pm Fri 21 Jan 1/5 Southern England Levels (ppb) URBAN SITES Ozone NO2 SO2 Bath Roadside nm 43 nm Brighton Roadside nm - nm Bristol Centre 10 29 3 Bristol Old Market nm 33 nm Cambridge Roadside nm 28 nm Exeter Roadside 5 33 2 Hove Roadside nm 37 nm Norwich Centre 7 27 8 Norwich Roadside nm 33 nm Plymouth Centre 8 25 3 Reading 4 30 - KEY LOW MODERATE HIGH VERY HIGH nm Not measured - Data unavailable Weather 400 Sport 300 Almanac 419 Front page 100 News 101 Travel 430 London Headlines Trav Head Main MenuP416 CEEFAX 2 416 Fri 21 Jan 22:07/52 9pm Fri 21 Jan 2/5 Southern England Levels (ppb) URBAN SITES Ozone NO2 SO2 Southampton Centre 5 34 2 Thurrock 6 42 9 RURAL SITES Devon 24 nm nm East Anglia 18 nm nm East Sussex 14 15 3 Oxfordshire 16 21 1 Rochester 9 37 12 South Somerset 25 nm nm Wicken Fen 9 - - KEY LOW MODERATE HIGH VERY HIGH nm Not measured - Data unavailable Weather 400 Sport 300 Almanac 419 Front page 100 News 101 Travel 430 London Headlines Trav Head Main MenuP416 CEEFAX 2 416 Fri 21 Jan 22:13/10 8pm Fri 21 Jan 3/5 Southern England Levels (ppm) (ug/m3) URBAN SITES CO Particles Bath Roadside 2.4 nm Brighton Roadside - nm Bristol Centre 0.5 16 Bristol Old Market 1.5 nm Exeter Roadside 1.9 nm Hove Roadside 1.2 nm Norwich Centre 0.6 15 Plymouth Centre 0.5 12 Reading - - Southampton Centre 0.5 18 Thurrock 1.1 20 KEY LOW MODERATE HIGH VERY HIGH nm Not measured - Data unavailable Weather 400 Sport 300 Almanac 419 Front page 100 News 101 Travel 430 London Headlines Trav Head Main MenuP416 CEEFAX 2 416 Fri 21 Jan 22:11/08 9pm Fri 21 Jan 4/5 Southern England Levels (ppm) (ug/m3) RURAL SITES CO Particles Oxfordshire nm 13 Rochester nm 16 KEY LOW MODERATE HIGH VERY HIGH nm Not measured - Data unavailable Weather 400 Sport 300 Almanac 419 Front page 100 News 101 Travel 430 London Headlines Trav Head Main MenuP416 CEEFAX 2 416 Fri 21 Jan 22:14/32 9pm Fri 21 Jan 5/5 Southern England BENZENE Level Year Avg Bristol Centre Below 0.79 Oxfordshire Below 0.27 S'hampton Centre Below 1.29 1,3-BUTADIENE Level Year Avg Bristol Centre Below 0.12 Oxfordshire Below 0.05 S'hampton Centre Below 0.24 These hydrocarbons can cause cancer. The level is set against a yearly average of 5ppb for Benzene and 1ppb for 1,3-Butadiene, which as standards represent very small health risks. Weather 400 Sport 300 Almanac 419 Front page 100 News 101 Travel 430 London Headlines Trav Head Main Menu