Current Air Quality Index & Pollutant Levels
Emilia-Romagna, Italy
Daily air quality forecast. PM2.5, PM10, O₃, NO₂, SO₂, CO.
Air Quality
46
Sensitive groups (children, elderly, those with respiratory conditions) may experience symptoms. Consider reducing prolonged outdoor exertion.
μg/m³
Hourly forecast
AQI · PM2.5 μg/m³
00:004610
01:00489
02:00509
03:004610
04:004211
05:004012
06:004013
07:004112
08:004210
09:00519
10:006010
11:006310
12:006312
13:006314
14:006414
15:006313
16:006313
17:006412
18:006312
19:006311
20:006311
21:006111
22:006010
23:005610
PM2.5
9.9μg/m³
66% of WHO limitAcceptable
PM10
12.4μg/m³
28% of WHO limitGood
Ozone (O₃)
110.2μg/m³
110% of WHO limitExceeded
NO₂
3.2μg/m³
13% of WHO limitGood
SO₂
0.9μg/m³
2% of WHO limitGood
CO
136.4μg/m³
3% of WHO limitGood
Dust (AOD)
0.05AOD
Clean
Daily air quality forecast
Today55Moderate40–64
Fri58Moderate45–63
Sat53Moderate32–66
Sun45Moderate27–57
Mon45Moderate45–45
European AQI Scale
0–20
Good
Air pollution poses little or no risk.
21–40
Fair
Acceptable for most; very sensitive people may notice symptoms.
41–60
Moderate
Children, elderly and people with conditions should limit prolonged outdoor exertion.
61–80
Poor
Everyone may start to feel effects; sensitive groups risk more serious effects.
81–100
Very Poor
Health warning of emergency conditions; everyone is more likely to be affected.
100+
Hazardous
Health alert: serious effects for everyone — limit time outdoors.
The European Air Quality Index ranges from 0 (best) to 100+ (worst). It combines measurements of particulate matter and gas pollutants into a single number.
History — Past 30 days
min–max Avg AQI
What are these pollutants?
PM2.5 — Fine particulate matter smaller than 2.5 micrometers. These particles are small enough to bypass the nose and throat, reaching deep into the lungs and even entering the bloodstream. Major sources include vehicle exhaust, industrial processes, and wildfires.
PM10 — Coarse particles smaller than 10 micrometers, including dust, pollen, and road surface wear. While larger than PM2.5, they still cause respiratory irritation and aggravate asthma.
O₃ — Ground-level ozone is not emitted directly — it forms when nitrogen oxides and volatile organic compounds react in sunlight. Higher in summer afternoons. Can trigger asthma attacks and reduce lung function.
NO₂ — Nitrogen dioxide comes primarily from vehicle engines and power plants. It inflames the lining of the airways, making the lungs more susceptible to infection.
SO₂ — Sulfur dioxide is released by burning fossil fuels containing sulfur, especially coal and oil. Even short exposure can constrict airways, particularly in people with asthma.
CO — Carbon monoxide is an odorless gas from incomplete combustion of fuels. Outdoors, it mainly comes from vehicle traffic. At elevated levels, it reduces the blood's ability to carry oxygen.
Dust (AOD) — AOD at 550nm. Above 0.3 = Saharan dust.
Air Quality FAQ
What is the Air Quality Index?
The European AQI is a number from 0 to 100+ that summarizes how clean or polluted the air is. It combines measurements of fine particles (PM2.5, PM10) and gases (ozone, NO₂, SO₂) into a single score. The higher the number, the worse the air quality and the greater the health risk.
Who is most sensitive to air pollution?
Children, the elderly, pregnant women, and people with asthma, COPD, or heart disease are most vulnerable. Even moderate pollution levels (AQI 41–60) can trigger symptoms in these groups. Athletes and outdoor workers also face higher exposure due to increased breathing rates.
How can I protect myself?
On high-pollution days: stay indoors with windows closed, use air purifiers with HEPA filters, avoid strenuous outdoor exercise (especially near busy roads), and check the AQI forecast before planning activities. Even on moderate days, sensitive individuals should limit prolonged outdoor exertion.
When is air quality typically worst?
Ozone peaks on hot, sunny afternoons (summer). Particle pollution (PM2.5) is often worst in winter due to heating and temperature inversions that trap pollutants near the ground. Rush-hour traffic causes NO₂ spikes morning and evening. Dust events and wildfires can cause sudden, severe spikes any time of year.
Data: Copernicus CAMS · CC-BY-4.0
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