Siklós — Air quality
Air quality
European air quality index (AQI)
· Today's peak 38.0, around 22:00.
Leading pollutant: PM2.5
(AQI 31.0)
— 10.5 µg/m³
Fair air quality – sensitive people should watch symptoms after long spells outdoors.
Dust (PM10)
µg/m³ · particulate matter
Hourly today
Coming days
Pollutants
PM2.5
Fine particulate matter (PM2.5)
The smallest particles can reach the lungs and bloodstream.
10.5 µg/m³
Fair
· AQI 31.0
PM10
Particulate matter (PM10)
Larger dust particles; may irritate airways and eyes.
13.7 µg/m³
Good
· AQI 18.0
NO₂
Nitrogen dioxide
Mostly from traffic; higher levels make breathing harder.
8.7 µg/m³
Good
· AQI 17.0
O₃
Ground-level ozone
Forms in sunlight; may irritate throat and lungs.
56.0 µg/m³
Good
· AQI 19.0
SO₂
Sulfur dioxide
Industrial / heating source; can quickly bother people with asthma.
CO
Carbon monoxide
Colorless, odorless gas; high levels cause headache and dizziness.
AQI scale
≤20
Good
Feel free to air rooms; outdoor plans are fine.
≤40
Fair
Sensitive people should watch for symptoms.
≤60
Moderate
After long spells outdoors, take it easier.
≤80
Bad
Avoid prolonged outdoor exercise.
80+
Very bad
Stay indoors if you can.
Frequently asked questions
What does the air quality index (AQI) mean?
The European AQI rates air cleanliness on a 0–100+ scale from the main pollutants (PM2.5, PM10, NO₂, O₃, etc.). Lower is better.
What is the difference between PM2.5 and PM10?
PM2.5 is fine dust under 2.5 µm; PM10 is under 10 µm. Finer particles go deeper into the lungs.
When should I be careful?
At moderate or worse AQI, shorten outdoor exercise, keep asthma meds handy, and air rooms less during busy traffic hours.
Related pages
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