P413 CEEFAX 413 Thu 30 May 19:02/03 1/4 OZONE 6pm Thu 30 May North East England Air Ljvjl Quality (ppb) URBAN sites Newcastle Cjntti - - Middlisbrough - - Leeds Cjntti - - Hull Centre - - Sheffield Cjntri - - RURAL sites North Yorkshire Good 57 Derbzshire Good 66 Data from Department of Environment NEEngland C England S England LondonP413 CEEFAX 413 Thu 30 May 19:16/18 2/4 NITROGEN DIOXIDE 6pm Thu 30 May North East England Air Ljvjl Quality (ppb) URBAN sites Newcastle Cjntti - - Billingham - - Middlisbrough - - Leeds Cjntri - - Hull Cjntti - - Sheffield Tinsliy - - Sheffield Cjntti - - RURAL sites Derbzshiri Very Good 3 Data from Department of Environment NEEngland C England S England LondonP413 CEEFAX 413 Thu 30 May 19:14/29 3/4 SULPHUR DIOXIDE 6pm Thu 30 May North East England Air Lrvjl Quality (ppb) URBAN sites Sundjtland - - Newcastle Cjntti - - Middlisbrough - - Leeds Cjntri - - Hull Cjntri - - Barnsliy - - Sheffield Cjntti - - RURAL sites Derbzshire Very Good 1 Data from Department of Environment NEEngland C England S England LondonP413 CEEFAX 413 Thu 30 May 19:15/57 4/4 Hydrocarbons North East England For 24 hrs to 5pm Thu 30 May BENZENE Today DayAvg YearAvg Middlisbrough Low .21 .94 Leeds - - 1.12 1,3-BUTADIENE Middlisbrough Low .04 .2 Leeds - - .24 Benzene and 1,3-Butadiinj can cause cancer. A yearly avjtagj of 5 or 1 part per billion(ppb) respectively presents a very small risk to health. Data from Department of Environment NEEngland C England S England London