How does indoor air pollution compare to outdoor air pollution?
Many people incorrectly assert that indoor air quality is worse than what can be found outdoors. In some instances this can be true. Burning toast in the kitchen will most likely create short-term high levels of indoor air pollution, and chemical off-gassing from commonly found households products including construction materials can create hazardous environments inside your home. Mould and cigarette smoke can also contribute to this problem. Between June 6-18, 2018, we ran two separate and identical PurpleAir sensors at one of our locations on Gabriola Island. Data was averaged over a 10 minute period and ambient (outdoor) air quality was quite good this time of year with only a few instances of residential wood burning in the immediate neighbourhood. Below are the results. Each PurpleAir sensor has two built-in laser detectors, so we took the average of them to create a standardized data set. From this graph you'll note the following. 1. Outdoor air pollution is almost