Semnan
2 monitoring stations · readings from 69 to 73
Average AQI
Air quality in Semnan
Air quality in Semnan is currently 71 on the AQI scale, which falls in the Moderate band. That number is the average across every monitoring station reporting in Semnan right now.
We aggregate 2 stations across Semnan. Individual stations range from 69 at the cleanest to 73 at the worst, so conditions vary across Semnan — the local figure matters more than the average.
Semnan breaks down into 2 cities you can open individually. Of those listed below, Semnan is reading highest at 73 and Shahrud lowest at 69.
Readings refresh hourly from the official monitoring networks we track. Conditions can change quickly, so check back before planning time outdoors.
What to do at moderate levels
Outdoor activity
Fine for most people. If you are planning a long or intense session outdoors, the early morning is usually cleaner.
Sensitive groups
Unusually sensitive people may notice mild irritation. Keep reliever medication to hand if you use it.
Indoor air
Ventilating is still worthwhile. Consider closing up during traffic peaks if you live on a busy road.
Cities in Semnan
About Semnan
Coordinates
35.995, 54.197
Centroid of monitored stations
Stations
2
Reporting in this area
Spread
69 – 73
Cleanest to worst station reading
Semnan air quality, answered
Semnan is currently reading an AQI of 71, which is Moderate. It is the average across 2 reporting stations.
Fine for most people. If you are planning a long or intense session outdoors, the early morning is usually cleaner. Unusually sensitive people may notice mild irritation. Keep reliever medication to hand if you use it.
71 sits in the Moderate band of the air quality index. The index runs from 0 to 500, and the lower the number the cleaner the air.
We currently aggregate 2 stations in Semnan, reading between 69 and 73.
Of the cities currently listed for Semnan, Semnan is reading highest at 73 (Moderate).
Hourly. We pull from the official monitoring networks that publish for this region, and this page refreshes on the same cadence.
See Semnan on the map.
Every station around it, live — or find out what today's reading means for you personally.