If you thought that air pollution was a more general phenomenon, you thought wrong. Wood smoke from wood stoves and fireplaces creates these hyper local risk environments. These screenshots show how massively different risk levels can be from one spot on Gabriola Island to another. The reading of 157 on the AQI scale is very high and what you would expect in Beijing or Delhi and not a little island of 4000 people with no industry or traffic. Note how much higher these readings are from other spots with AQIs of 1 only a few kilometres away. The graph in the second image shows the prototypical pattern from wood burning and nothing else.