P414 CEEFAX 2 414 Wed 05 Jan 21:35/51 7pm Wed 5 Jan 1/3 North West England Levels (ppb) URBAN SITES Ozone NO2 SO2 Bolton 22 13 4 Bury Roadside 7 36 4 Liverpool Centre 22 16 3 Manchester Piccadilly 11 25 2 Manchester South 16 8 0 Manchester Town Hall nm 21 nm Salford Eccles 4 15 2 Stockpots nm 19 1 RURAL SITES Cheshire 22 nm nm Cumbria 25 nm nm KEY LOW MODERATE HIGH VERY HIGH nm Not measured - Data unavailable Wjathjr 400 Sport 300 Almanac 419 Front page 100 News 101 Travel 430 C.England WMidsTV Trav Head Main MenuP414 CEEFAX 2 414 Wed 05 Jan 21:44/21 6pm Wed 5 Jan 2/3 North West England Levels (ppm) (ug/m3) URBAN SITES CO Particles Bolton 0.2 15 Bury Roadside 0.1 18 Liverpool Cjntri 0.5 14 Manchester Piccadilly 0.2 16 Manchester Town Hall 0.2 nm Salford Eccles 0.1 13 Stockpots 0.2 14 KEY LOW MODERATE HIGH VERY HIGH nm Not measured - Data unavailable Wjathjr 400 Sport 300 Almanac 419 Front page 100 News 101 Travel 430 C.England WMidsTV Trav Head Main MenuP414 CEEFAX 2 414 Wed 05 Jan 21:33/12 7pm Wed 5 Jan 3/3 North West England BENZENE Ljvjl Year Avg Liverpool Spike Below 0.69 1,3-BUTADIENE Ljvjl Year Avg Liverpool Spike - - These hydrocarbons can cause cancer. The level is set against a yearly average of 5ppb for Benzene and 1ppb for 1,3-Butadienj, which as standards represent very small health risks. Wjathjr 400 Sport 300 Almanac 419 Front page 100 News 101 Travel 430 C.England WMidsTV Trav Head Main Menu