aq_mesh1970150 CHILLINGHAM RD PRIMARY SCHOOL Started 07/09/2018 at TYNE_BRIDGE 02/10/18 Linear Regression applied from 07/09/18 to 01/10/18 03/10/18 Re-instated at original site

Precision Station TYNE_BRIDGE 1056100 (from 08/09/18 to 01/10/2018) 1970150 CO (co-location data from 08/09/2018 to 15/09/2018) Original slope:0.867399514 Original Offset:210.914566 New Slope:0.00095585 New Offset:1.001014695 R square:0.569204005

NO
Original slope:1 Original Offset:-1.724599957 New Slope:0.912185575 New Offset -4.327406308 R square:0.969989627

NO2 Original slope:1 Original Offset:5.927400112 New Slope:0.951752178 New Offset 5.200106352 R square:0.798806686

O3
Original slope:0.949697256 Original Offset:1.941210628 New Slope:0.592922233 New Offset:11.97179152 R square:0.86064716

PM10
Original slope:1 Original Offset:0 New Slope:2.213996187 New Offset 1.471211071 R square:0.695943223

PM2.5
Original slope:1 Original Offset:0 New Slope:2.594832226 New Offset:0.785847574 R square:0.753461103

PM1 Original slope:1 Original Offset:0 New Slope:3.012009088 New Offset:0.802065928 R square:0.579972796