In August of 2016, the Gabriola Island Clear Air Society brought online the first PurpleAir sensor network in Canada. Our sensor network has documented extensively the staggering amount of air pollution coming from wood stoves and fireplaces on our tiny island. As the number of PurpleAir sensors expanded across the province and elsewhere in Canada, many began to raise questions about the accuracy of these low-cost devices. There have been several studies to-date that all show the same thing: these devices work, are accurate, reliable, and fill in gaps in air quality monitoring. The newest study from Australia by Dr. Dorothy Robinson provides definitive evidence that should quash any concerns about using PurpleAir sensors. See the study here . Gabriola Island Clean Air Society director Dr. Michael Mehta has the following to say about this study. This paper provides empirical evidence to show that the use of low-cost PM2.5 monitors for measuring air quality on a distributed basis has me
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