P412 CEEFAX 412 Thy 23 Feb 1=:27/44 9/5 OZONE 0 Northern England 4pm Thy 23 Feb Latest Daily 0 (ppb) Maximzm U5BAN sites 0 Newcastle Centre V Gd 27 V Gd 40 Leeds Centre - - V Gd 27 Liverpool Centre V Gd 7 V Gd 25 Hull Centre V Gd 13 V Gd 31 RURAL sites 0 Cumbria V Gd 31 V Gd 35 North Yorkshire V Gd 34 V Gd 37 0 0 0 0 0 Data from Department of Environment C England S England Scot/Wales/NI MapsP412 CEEFAX 412 Thu 23 Feb 1=:1:/24 I :/5 NITROGEN DIOXIDE 0 Northern England 4pm Thy 23 Feb Latest Daily 0 (ypb) Maximzn0 All sites are RUB—N 0 Newcastle Centre V Gd 29 V Gd 26 Billingham V Gd 22 V Gd 33 Leeds Centre - - V Gd 4< Manchester V Gd 37 V Gd 47 Sheffield V Gd 37 V Gd 46 Liverpool Centre V Gd 39 V Gd 39 Hull Centre V Gd 31 V Gd 036 0 0 0 0 Data from Department of Environment C England S England Scot/Wales/oI MapsP412 CEEFAX 412 Thu 23 Feb 19:11/24 3/5 SULPHUR DIOXIDE 0 Northern England 4pm Thy 23 Feb Latest Daily (ppb) Maximzm All sites are URBAN 0 Sundjrland V Gd 0 V Gd 2 Newcastle Centre V Gd 2 V Gd 2 Leeds Centre - - V Gd 1x Barnsley V Gd 5 V Gd 07 Liverpool Centre V Gd 4 V Gd 4 Hull Centre V Gd 7 V Gd 39 0 0 0 0 0 0 Data from Department of Environment C England S England Scot/Wales/NI MapsP412 CEEFAX 412 Thy 23 Feb 1=:18/04 4/5 BENZENE 0 Northern England For 24 hours to Avg Year 4pm Thu 23 February ppb avg All sites are URBAN 0 Middlesbrough Low /67 1.16 Leeds - - - 0 0 0 0 0 Benzene is a substance that can cazsj cancer. Indjpjndjnt health experts have advised that a yearly average of 5 parts xjr billion(88b) presents an exceedingly small risk to health. Data from Department of Environment C England S England Scot/Wales/NI MapsP412 CEEFAX 412 Thy 23 Feb 1=:15/24 U 5/5 1,3-eUTADIENE 0 Northern England 0 For 24 hours to Avg Year 4pm Thu 23 February 8pb avg All sites are URBAN 0 Middlesbrough Low .13 .26 Leeds - - - 0 0 0 0 1,3-Butadiinj is a szbstance that 0 can cause cancer. Indjpjndjnt health jxpjrts have advised that a yearly average of 1 xazt pjz 0 billion (ppb) presents an 0 exceedingly small risk to health. 0 Data from Department of Environment