What we are collecting data about are small particles:

Particle Sizes

These are the sorts of readings we contribute to the London Air Quality Map:

PM2.5 local map 14th May 2023
PM10 local map 14th May 2023
NO2 local map 14th May 2023

Our pollution monitor data is harvested by the team at Imperial College:

Photo of some members of the Environmental Research Group, School of Public Health, Faculty Medicine, Imperial College London
photographer: Jo Mieszkowski/Imperial College London

Here is the sort of annual info we expect to be able to show from our node:

Pollution Data

Here’s a selection of countries for comparison:

Selected World cities Air Pollution Map