State, UM, MHSA build extensive air quality monitoring system

By: Jordan Hansen

Outlets: Daily Montanan

Published: April 14, 2026

Words: 1,538

Last Updated: 3 months ago

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Across the state of Montana, there have been wide gaps in the state’s wildfire smoke detection safety net.

PurpleAirs in Schools — a Department of Environmental Quality program now in its third year — seeks to close the net with hundreds of low-cost, but effective, air quality sensors installed at high schools across the state. They track PM2.5, tiny, inhalable particles that are hazardous to human health and are associated with wildfire smoke.

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