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Friday, 
County Site Units 8-Hour Hour Of Day 1 Hour Hour Of Day
NIRE Belfast Centre AURN µg/m³ 65.9 06 AM 68.3 03 AM
NE England Bradford Apperley Bridge Marina Zephyr µg/m³ 51 03 AM 50.3 02 AM
NE England Bradford Cavendish Prim Sch Hall Rd Zephyr µg/m³ 58.5 04 AM 57.5 02 AM
NE England Bradford East Bowling Flockton Grove Zephyr µg/m³ 47.1 05 AM 46.5 01 AM
NE England Bradford Farfield Prim Sch Reevy Cres Zephyr µg/m³ 34.7 05 AM 34.3 04 AM
NE England Bradford Girlington St Leonards Road Zephyr µg/m³ 59.4 05 AM 60.1 02 AM
NE England Bradford Gt Horton All Saints Prim Sch Zephyr µg/m³ 41.5 05 AM 44.7 02 AM
NE England Bradford Horton Aberdeen Place Zephyr µg/m³ 52.5 06 AM 54.5 02 AM
NE England Bradford Ilkley Grove Road Zephyr µg/m³ 39.6 04 AM 39.9 01 AM
NE England Bradford Keighley Zephyr µg/m³ 47.2 05 AM 49.3 01 AM
NE England Bradford Low Moor First Street Zephyr µg/m³ 34 05 AM 35.1 01 AM
NE England Bradford Saltaire Titus Street Zephyr µg/m³ 47.5 04 AM 48.5 01 AM
NE England Bradford Silsden Hothfield Street Zephyr µg/m³ 42.4 04 AM 44.3 01 AM
SW England Bristol St Paul's AURN µg/m³ 79 07 AM 82.4 03 AM
SE England Canterbury AURN CLOSED µg/m³ 78.2 03 PM 80.8 10 AM
NE England Hull Freetown AURN µg/m³ 69.3 01 AM 66.5 01 AM
Midlands Leicester University AURN µg/m³ 63.5 12 PM 67.1 07 AM
NW England Liverpool Speke AURN µg/m³ 55.1 03 AM 54.1 02 AM
London London Haringey Priory Park South AURN µg/m³
NE England Newcastle Centre AURN µg/m³ 78.2 05 AM 79.8 01 AM
NE England Newcastle Cradlewell Roadside AURN µg/m³
East Anglia Norwich Lakenfields AURN µg/m³ 69.1 04 PM 73.6 12 PM
NW England Nottingham Kenmore Gardens AURN µg/m³ 54 01 AM 44 01 AM
SE England Portsmouth AURN µg/m³ 71.4 04 PM 77.2 05 AM
NW England Preston AURN µg/m³ 68 04 AM 67.7 02 AM
SE England Reading New Town AURN µg/m³ 66.4 12 PM 68.7 12 PM
SE England Rochester Stoke AURN µg/m³ 84.2 03 PM 87.6 10 AM
SW England South Glos Coldharbour Lane A4174 µg/m³ 78.7 07 AM 83.6 05 AM
NE England South Tyneside Edinburgh Road µg/m³
SE England Southampton Centre AURN µg/m³ 79 10 AM 85.4 05 AM
Midlands Stoke-on-Trent Centre AURN µg/m³ 63.9 01 AM 63.1 01 AM
NE England Sunderland Silksworth AURN µg/m³ 83.2 02 AM 85 01 AM
SE England Thurrock AURN µg/m³ 73.8 02 PM 78.2 10 AM
East Anglia Weybourne AURN µg/m³ 68 06 PM 70.8 04 PM
NW England Wirral Tranmere AURN µg/m³ 59.1 05 AM 59.5 01 AM