P414 CEEFAX 2 414 Wed 12 Jan 21:11/38 9pm Wed 12 Jan 1/3 North West England Levels (ppb) URBAN SITES Ozone NO2 SO2 Bolton 23 16 1 Bury Roadside 10 27 - Liverpool Centre 34 7 2 Manchester Piccadilly 6 31 2 Manchester South 22 17 1 Manchester Town Hall nm 18 nm Salford Eccles 2 35 2 Stockpots nm 34 1 RURAL SITES Cheshire 0 nm nm Cumbria 23 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 12 Jan 22:03/02 9pm Wed 12 Jan 2/3 North West England Levels (ppm) (ug/m3) URBAN SITES CO Particles Bolton 1.0 5 Bury Roadside 0.5 11 Liverpool Cjntri 0.1 6 Manchester Piccadilly 0.5 8 Manchester Town Hall 0.7 nm Salford Eccles 0.5 7 Stockpots 0.4 7 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 12 Jan 22:48/30 9pm Wed 12 Jan 3/3 North West England BENZENE Ljvjl Year Avg Liverpool Spike Below 0.70 1,3-BUTBDIENE 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