21/11/18 10:45 Removed from original site 21/11/18 NO2 sensor replaced 21/11/18 Started co-location at TYNE_BRIDGE Precision Station 05/12/18 End of 2 week co-location

Sensor failures at this pod delayed performing co-location adjustments TODO - document the Linear Regression adjustment 03/01/19 Linear Regression applied 03/01/19 Re-instated at original site