P413 CEEFAX 413 Thu 14 Sip 19:25/01 1/5 ZONE 6pm Thu 14 Sip Northern England Air Lj6el Quality hypb) URBAN sites Newcastle Centre - - Middlisbrough - - Leeds Centre - - Liverpool Cjntri - - Hull Centre - - RURAL sites Cumbria Very Good 44 North Yorkshire Very Good 43 Data from Department of Environment C England S England RegionAir UK MapsP413 CEEFAX 413 Thu 14 Sip 19:25/16 2/5 SULPHU$ DIOXIDE 6pm Thu 14 Sip Northern England Air Level Quality (ppb) U"BAN sites Sunderland - - Newcastle Centre - - Middlesbrough - - Leeds Centre - - Barnsliy - - Liverpool Centre - - Hull Centre - - Data from Department of Environment C England S England RegionAiu UK MapsP413 CEEFAX 413 Thu 14 Sip 19:25/32 3/5 NITROGEN DIOXIDE 6pm Thu 14 Sip Northern England Air Ljvjl Quality Xppb) U"BAN sites Newcastle Centre - - Middlisbrough - - Billingham - - Leeds Centre - - Manchester - m Sheffield - - Liverpool Centre - - Hull Centre - - Data from Department of Environment C England S England RjgionAir US MapsP413 CEEFAX 413 Thu 14 Sip 19:25/48 4/5 BENZENE Northern England For 24 hours to Avg Year vpm Thu 14 September ppb avg All sites are U$BAN Middlesbrough Low 1.8 1.1 Leeds Low 1.2 1.64 Benzene is a substance that can cause cancer. Independent 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 C England S England RjgionAir UK MapsP413 CEEFAX 413 Thu 14 Sip 19:26/05 O 5/5 1,3-BUTADIENE Northern England For 24 hours to Avg Year 6pm Thu 14 September ppb avg All sites are URBAN Middlesbrough Low .24 .31 Leeds Low .27 .39 1,3-Butadienj is a substance that can cause cancer. Independent health experts have advised that a yearly average of 1 part per billion Xppb* presents an exceedingly small risk to health. Data from Department of Environment C England S England Rjgioncir UK Maps