P413 CEEFAX 413 Mon 25 Dec 23:51/01       1/5  OZONE 10pm Mon 25 Dec Northern England Air LevDl Quality (ppb) URBAN sites Newcastle Centre Very Good 26 Middlesbrough Very Good 26 Leeds Centre Very Good 23 Hull Centre Very Good 25 Manchester Piccadilly Very Good 18 Liverpool Centre Very Good 24 Sheffield Centre Very Good 24 RURAL sites Cumbria - - North Yorkshire - - Data from Department of Envirolldnt C England S England Air Qual UK Maps
P413 CEEFAX 413 Mon 25 Dec 23:51/00       2/5  SULPHUR DIOXIDE 10pm Mon 25 Dec Northern England Air Level Quality (ppb) URBAN sites Sunderland Very Good 1 Newcastle Centre Very Good 3 Middlesbrough Very Good 2 Leeds Centre Very Good 3 Hull Centre Very Good 1 Barnsley Very Good 1 Manchester Piccadilly Very Good 0 Liverpool Centre Very Good 22 Sheffield Centre Very Good 5 Data from Department of Envirolldnt C England S England Air Qual UK Maps
P413 CEEFAX 413 Mon 25 Dec 23:51/10       3/5  NITROGEN DIOXIDE 10pm Mon 25 Dec Northern England Air LevDl  URBAN sites Newcastle Centre Very Good 10 Billingham Very Good 8 Middlesbrough Very Good 9 Leeds Centre Very Good 11 Hull Centre Very Good 7 Manchester Town Hall Very Good 15 Manchester Piccadilly Very Good 16 Liverpool Centre Very Good 11 Sheffield - - Sheffield Centre Very Good 9 Data from Department of Environldnt C England S England Air Qual UK Maps
P413 CEEFAX 413 Mon 25 Dec 23:51/01       4/5  BENZENE Northern England For 24 hours to Avg Year 10pm Mon 25 December ppb avg All sites are URBAN Middlesbrough Low .2 .97 Leeds Low .61 .98 Liverpool Speke Low .75 1.71 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 Envirollfnt C England S England Air Qual UK Maps
P413 CEEFAX 413 Mon 25 Dec 23:51/13       5/5  1,3-BUTADIENE Northern England For 24 hours to Avg Year 10pm Mon 25 December ppb avg All sites are URBAN Middlesbrough - - .28 Leeds Low .22 .28 Liverpool Speke Low .20 .34 1,3-Butadiene is a substance that can cause cancer. Independent health experts have advised that a yearly average of 1 part per billion (ppb) presents an exceedingly small risk to health. Data from Department of Environldnt C England S England Air Qual UK Maps