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PurpleAir sensors tracking local air quality

NWCAA using data to monitor local air concerns

PurpleAir sensors allow users to track indoor and outdoor air quality
PurpleAir sensors allow users to track indoor and outdoor air quality (Victoria Corkum/Cascadia Daily News)
By Julia Lerner Staff Reporter
The Northwest Clean Air Agency has a new tool for tracking local air quality: PurpleAir sensors.  T
Cascadia Daily News
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