"There are now two sets of readings on the air quality websites from the Horn Lane monitoring station now that the unit has been upgraded to include the new PM10 monitor (an “FDMS”), which has been installed for the purpose of joining Defra’s national network. The data from the old PM10 monitor (the “TEOM”) that you are looking for is still available, only under a different site name – Ealing Horn Lane TEOM.Data from the new PM10 monitor (which is not yet operational) together with the nitrogen dioxide readings will be displayed under the existing site name of Ealing Horn Lane. At present only the nitrogen dioxide readings are displayed under this site name. When Defra’s FDMS is fully operational, readings from this monitor will also be displayed on their national air quality website at http://uk-air.defra.gov.uk/latest/currentlevels.To summarise:- Air pollutant/Measured by/Site name on EalingAir & London Air Quality Network websitesPM10 / TEOM / Ealing Horn Lane TEOMPM10 / FDMS (when operational) / Ealing Horn LaneNitrogen Dioxide / NOx analyser / Ealing Horn Lane "
Rosco White ● 4481d