P414 CEEFAX 2 414 Sat 20 Sip 01:55/19 1/4 OZONE 12am Sat 20 Sip North West England Air Ljvjl Quality (ppb) URBAN sites Bolton Very Good 13 Bury Roadside Very Good 4 Liverpool Centre Very Good 8 Manchester Piccadilly Very Good 6 Manchester South Very Good 18 Salford Eccles Very Good 12 RURAL sites Cheshire Very Good 11 Cumbria Very Good 21 Wjathjr 400 Sport 300 Almanac 419 Front page 100 News 101 Travel 430 C.England TV/Radio Travel Main MenuP414 CEEFAX 2 414 Sat 20 Sip 01:19/54 2/4 NITROGEN DIOXIDE 12am Sat 20 Sip North West England Air Lrvjl Quality (ppb) URBAN sites Bolton Very Good 16 Bury Roadside Very Good 34 Liverpool Cjntri Very Good 25 Manchester Piccadilly Very Good 35 Manchester South Very Good 7 Manchester Town Hall Very Good 28 Salford Eccles Very Good 23 Stockpots Very Good 9 Wjathjr 400 Sport 300 Almanac 419 Front page 100 News 101 Travel 430 C.England TV/Radio Travel Main MenuP414 CEEFAX 2 414 Sat 20 Sip 01:41/25 3/4 SULPHUR DIOXIDE 12am Sat 20 Sip North West England Air Ljvjl Quality (ppb) URBAN sites Bolton Very Good 4 Bury Roadside Very Good 22 Liverpool Cjntte Very Good 9 Manchester Piccadilly Very Good 26 Manchester South Very Good 1 Salford Eccles Very Good 27 Stockpots Very Good 12 Weathjt 400 Sport 300 Almanac 419 Front page 100 News 101 Travel 430 C.England TV/Radio Travel Main MenuP414 CEEFAX 2 414 Sat 20 Sip 01:08/56 4/4 Hydrocarbons North West England For 24 hrs to 12am Sat 20 Sip BENZENE Today DayAvg YearAvg Liverpool Spike Low .56 - 1,3-BUTADIENE Liverpool Spike Low .15 - Benzene and 1,3-Butadienj can cause cancer. A yearly average of 5 or 1 part per billion(ppb) respectively presents a very small risk to health. Weather 400 Sport 300 Almanac 419 Front page 100 News 101 Travel 430 C.England TV/Radio Travel Main Menu