Time of last reading:
Oct. 15, 2018, 5:30 p.m.
Dec. 20, 2017, 3:45 a.m.
Issue Feb. 12, 2018 - Feb. 22, 2018
It has been brought to our attention by Environmental Instruments Ltd (manufacturers of AQMesh) that due to a bug in a server systems update that NO2 and O3 data from all AQMesh pods were effected from 7am on 12th February until 9am on 22nd February 2018. No other channels are affected. We caution you against using NO2 and O3 data for this period until the corrections have been applied. We urge users to re-call this data from Tuesday 27th when all readings will have been re-processed. The Urban Observatory apologises for the inconvenience.Issue March 6, 2018 - March 6, 2018
power issueIssue May 1, 2018 - May 1, 2018
Aq_mesh1909150 (WarwickSt/Stratford Rd) was resurrected by powering off and on.Issue June 28, 2018 - June 28, 2018
NO reading negative by 1pbm since 17/0618 Slope is 1 - allows fix by adjusting Offset, at 10:45 am Original Slope : 1 Original Offset : 1.1500999927521 Offset Changed to : 2.5 Slope : unchangedIssue June 17, 2018 - June 22, 2018
All 4 SenseMyStreet AQ Meshes have been retrieved for upgrade by AirMonitors. These should be re-installed by Friday 22nd.Issue Sept. 12, 2018 - Sept. 12, 2018
Temporary re-location for calibration at Coast Road Precision StationIssue Oct. 10, 2018 - Oct. 10, 2018
aq_mesh1909150 Collocated at Precision Station NORTH_TYNESIDE 1048100 (From 21/09/18 to 01/10/2018) CO(Linear regressions analysis can not be done due to CO analyser failure) Original slope 0.856999993 Original Offset 184.4080048 New Slope New Offset R square NO Original slope 1 Original Offset 2.5 New Slope 1.026699403 New Offset 4.326764482 R square 0.975330013 NO2 Original slope 1 Original Offset 9.999699593 New Slope 1.037222429 New Offset 4.252158947 R square 0.857474558 O3 Original slope 0.674300015 Original Offset 8.314200401 New Slope 0.24663808 New Offset 18.48939063 R square 0.250771127 PM10 Original slope 1 Original Offset 0 New Slope 3.008278531 New Offset 2.717278751 R square 0.461842675 PM2.5 Original slope 1 Original Offset 0 New Slope 3.281886315 New Offset 0.809371704 R square 0.624794331 PM1 Original slope 1 Original Offset 0 New Slope 5.108777971 New Offset 0.207144495 R square 0.712443623Issue Oct. 11, 2018 - Oct. 11, 2018
SenseMyStreets aq_mesh1909150 On completion of Precision Station co-location period at North Tyneside, This pod has moved : from Warwick St (54.980214, -1.590846), Lamppost 18W42 to Kingston Park Shops, Brunton Lane (55.013660, -1.666345), Lamppost 32B399 (Bus stop Kingston Park Shops Stand A , opposite Boots, NE3 2FP) (about 11:15 approx)
Sensor Maintenance Records: