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Mixed data on Suncor’s discharge of harmful sulfur dioxide illustrates complexity of air-quality monitoring

Several entities monitor air around Commerce City refinery, but some devices didn’t even record April 12 event

Detlev Helmig of Boulder Air monitors air quality readings at a monitoring station in Commerce City, Colorado, on Wednesday, April 19, 2023. The environmental justice nonprofit organization Cultivando and partners' project AIRE (Air Quality Investigation and Research for Equity) centers around the Suncor refinery in Commerce City. (Photo by Hyoung Chang/The Denver Post)
Detlev Helmig of Boulder Air monitors air quality readings at a monitoring station in Commerce City, Colorado, on Wednesday, April 19, 2023. The environmental justice nonprofit organization Cultivando and partners’ project AIRE (Air Quality Investigation and Research for Equity) centers around the Suncor refinery in Commerce City. (Photo by Hyoung Chang/The Denver Post)
Noelle Phillips of The Denver Post.
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The situation surrounding Suncor's April 12 sulfur dioxide discharge illustrates just how complex and confusing air quality monitoring can be, especially for the average resident who is simply trying to figure out exactly what pollutants are in the air, how long they are being exposed to them, and what the health impacts might be.
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