Time of last reading:
July 16, 2018, 9 a.m.
June 1, 2017, noon
Issue July 4, 2017 - July 24, 2017
NO and NO2 sensors damaged. Replacements due.Issue Sept. 19, 2017 - Sept. 19, 2017
Petrol grinders used to cut pavement directly beneath this sensor. Spikes in gas data correspond with the timings of the work carried out.Issue Nov. 18, 2017 - Nov. 19, 2017
Third party server outage. All AQ Mesh and precision sites affected.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.
Sensor Maintenance Records: