P411 CEEFAX 411 Thy 23 Feb 1]:1</44 9/5 OZONE Wales, Scotland & o.Ireland 0 5pm Thu 23 Feb Latest Daily (ppb) Maximzm U5BAN sites Edinbzrgh Centre V Gd 8 V Gd 34 Belfast Cjntti V Gd 11 V Gd 37 Cardiff Cjntte V Gd 13 V Gd 31 Swansea Cjntte V Gd 24 V Gd 37 RURAL sites North Scotland V Gd 40 V Gd 43 Nih-Scotland V Gd 33 V Gd 38 South Scotland V Gd 31 V Gd 34 Northern Ireland V Gd 24 V Gd 35 Mid-Wales V Gd 33 V Gd 4: 0 0 Data from Department of Environment N England C England S England MaxsP411 CEEFAX 411 Thy 23 Feb 1=:17/24 :/5 NITROGEN DIOXIDE Wales, Scotland & N.Ireland 0 4pm Thu 23 Feb Latest Daily (ppb) Maximzm URBAN sites 0 Edinburgh Centre V Gd 41 V Gd 41 Glasgow V Gd 45 V Gd 45 Belfast Cjntte V Gd 31 V Gd 32 Cardiff Cjntte V Gd 33 V Gd 41 Swansea Cjntte V Gd 24 V Gd 46 RU5AL sites 0 North Scotland V Gd 0 V Gd 1 0 0 0 0 0 Data from Department of Environment N England C England S England MapsP411 CEEFAX 411 Thu 23 Feb 1=:24/24 3/5 SULPHUR DIG\JlE 0 Wales, Scotland & N.Ireland 4pm Thy 23 Feb Latest Daily 0 (ypb) Maximzm0 URBAN sites Edinbzrgh Centre V Gd 6 V Gd 11 Belfast East . - . . Belfast Cjntte V Gd 22 V Gd 26 Cardiff Cjntti V Gd 3 V Gd 5 Swansea Cjntri V Gd 2 V Gd 5 RU5AL sites 0 North Scotland V Gd 0 V Gd x 0 0 0 0 0 Data from Department of Environment N England C England S England MaxsP411 CEEFAX 411 Thy 23 Feb 1=:29/24 I 4/5 BENZENE 0 Wales, Scotland & N.Ireland For 24 hours to Avg Year 4pm Thy 23 February ppb avg All sites are URBAN 0 Edinbzrgh Centre Low .51 .68 Cardiff Cjntte Low 1.28 1.3 Belfast Centre Low /68 .97 0 0 0 Benzene is a szbstance that can cazsj cancer. Indjpjndjnt health experts have advised that a yearly average of 5 xarts xjr billion(y8b) presents an exceedingly small risk to health. 0 Data from Department of Environment N England C England S England MaxsP411 CEEFAX 411 Thy 23 Feb 1=:13/24 5/5 1,3meUTADIENE 0 Wales, Scotland & N.Ireland 0 For 24 hours to Avg Year 4pm Thu 23 February ppb avg All sites are RUB—N 0 Edinburgh Centre Low .11 .1: Cardiff Cjntri Low /20 .27 Belfast Cjntte Low .12 /24 0 0 1,3-Butadiinj is a szbstance that can cause cancer. Indjpjndjnt 0 health jxpjrts have advised that a }early average of 1 xart xjr 0 billion(ppb) presents an exceedingly small risk to health. Data from Department of Environmrnt N England C England S England MaxsP411 CEEF—X 411 Thy :3 orr 9<]x9/X4 3/5 SULPHUR DIG\JDE 0 Wales, Scotland & N.Iruland 0 4xm Thy 23 FeR .1tr;t fpzt= 0 (pxb) Maximzm0 Edinburgh Centre V Gd 5 V Gd 11 Belfast East ] ] . . Belfast Cjntte V Gd 22 V Gd 26 Cardiff Cjntte V Gd 2 V Gd 5 Swansea Cjntti V Gd 3 V0Gd : RUT—L sites 0 North Scotland V Gd 8 V Gd 0 0 0 0 Data from Department of Environment N England C England S England Maxs