P41b CJJFAX 412 Sun 3aMar 2p:51/28 O 3/5 NITROGEN DIOXIDE 6pm Sun 3 Mar Wblis, Scotland & N.Ireland Air Level Qublity XppbR U$BAN sites Edinburgh Cjntti - - Glasgow - - Belfast Centre - - Swansea Cjntti - - Cbrdiff Centre - - RU5BL sites North Scotland - - Data from Department of Environment N England C England S England Air QualP41b CJJFA 422 Sun 3 Mar 29:43/28 5/5 1,3-BUTBDIJNE 'bles, Scotland & N.Ireland For 24 hours to Avg Year 6pm Sun 3 March ppb avg All sites are URBAN Edinburgh Cjntrj Low .16 .13 Belfast South Low .08 .19 Cardiff Centre Low .10 .23 1,3-Butadienj is a substance that can cause cancer. Independent health jxpjrts have advised that a yearly avjtage of 1 part per billion(ppbR presents an exceedingly smbll risk to health. Data from Department of Environment N England C England S England Air Qzal