What is the Current PM10 Level?
Semnan
The current PM10 level based on average air quality data in Semnan is 53 µg/m³, making it acceptable, but sensitive individuals should be cautious.
The current PM10 level in Semnan is 1.18x Above the recommended WHO guideline of 45 µg/m³.
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AQI Graph
Historical Air Quality Data
Semnan
Download 2024 Annual Data
World Air Quality Report
PM10 particles are with a diameter of 10 micrometers (µm) or smaller and human hair has a diameter of 50 to 70 (µm). It makes PM10 1/5 to 1/7 of the human hair size.
Uncovering the Sources of Particulate Matter (PM10): Where Does It Come From?
Wind-blown dust
Dust lifted and spread by the wind from bare soil.
Construction sites
Dust and pollutants from building activities.
Industries
Releases various pollutants from different processes.
Waste burning
Smoke and toxins from burning waste materials.
Landfills
Emissions from decomposing waste in big landfills.
Vehicles exhausts
Emissions of harmful gases and particles from cars.Short-Term PM10 Exposure Impacts
Allergies
Airborne allergens causing sneezing and itching.
Cough and runny nose
Respiratory irritation cause to coughing
Eyes irritations
Redness and discomfort in the eyes.
Chest tightness
Constriction feeling in the chest.
Breathing difficulty
Trouble in breathing or discomfort in the chest.Health Advice Based on Current PM10 Level In
Semnan
Air PurifierTurn On
Car FilterMust
N95 MaskMust
Stay IndoorMust
Must turn on the air purifier to enjoy fresh air.
Recommendations by 
Why you should care about Particulate Matter (PM10)?
Air Quality FAQs
at Semnan
Frequently Asked Questions About Air Quality
What is the current PM10 level in Semnan?
The current real-time PM10 level in Semnan is 53 µg/m³ (Moderate). This was last updated 7 minutes ago (Local Time).
When was the best PM10 level in Semnan in the last 24 hours?
The best PM10 level was 54 µg/m³ (Moderate) at 2:09 PM, Jun 6, 2025 (Local Time) during the last 24 hours.
When was the worst PM10 level in Semnan in the last 24 hours?
The worst PM10 level was 65 µg/m³ (Moderate) at 3:09 AM (Local Time) during the last 24 hours.
What is the current trend of PM10 levels in Semnan during last 24 hours?
The PM10 levels in Semnan have been fluctuating throughout the last 24 hours. The levels have increased by highest 65 µg/m³ at 3:09 AM (Local Time), lowest 54 µg/m³ at 2:09 PM, Jun 6, 2025 (Local Time).
What actions are recommended as per the current PM10 level in Semnan?
Current PM10 levels are acceptable; however, some pollutants may be a concern for a small number of sensitive individuals.