Hong Kong’s Air Quality Might Not Be as Good as You Think

Hong Kong doesn’t come to mind when people think of air pollution. However, the data tells a different story–one that has important implications for Hong Kongers’ health. Hong Kong’s Air Pollution in Numbers I just analyzed data on Hong Kong’s pollution data and found that PM2.5 averaged 30 micrograms in 2018. …

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Are Particle Counters and Government Machines the Same?

My particle counter is a beast–I’ve loved it. But I’ve always wondered how the counts of laser particle counters like mine:     …compare to the measurements of the huge stationary air quality monitoring stations that governments use, like this one in New Zealand:     If you look at …

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Particle Counting in the News

Science in the news! The word on clean air seems to be getting out. Particle Counting was written up in a few places recently: James Fallows graciously wrote about Particle Counting as one low-cost safeguard while living in “toxic” China, partly in response to New York Times Beijing correspondent Edward …

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Smart Air is a social enterprise and certified B Corp that offers simple, no-nonsense air purifiers and provides free education to protect people from the harms of air pollution.

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