Cepães, Fafe
Braga
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Air Quality

Fafe · updated at 14:07
Air Quality Index · US EPA scale
Moderate

Acceptable; unusually sensitive people may notice mild discomfort.

Main pollutantPM2.59.7 µg/m³52
050100150200300+
Temperature22°Humidity53%Wind13 km/h WSWUV index4

Health recommendations

Moderate
General population

Outdoor activities are fine. If you get a cough or eye irritation, take it easier.

Sensitive groups

Very sensitive people should watch for symptoms and slow down if needed.

children, older adults, pregnant women and people with asthma, COPD or heart disease
Outdoor exerciseGo ahead
WindowsOpen is fine
MaskNot needed
Sensitive groupsWatch symptoms

Next 24 hours

hourly AQI
52
PM2.514:00
53
PM2.515:00
55
PM2.516:00
57
PM2.517:00
56
PM2.518:00
59
PM2.519:00
60
PM2.520:00
61
PM2.521:00
63
PM2.522:00
61
PM2.523:00
Tomorrow59
PM2.500:00
58
PM2.501:00
60
PM2.502:00
64
PM2.503:00
66
PM2.504:00
59
PM2.505:00
56
PM2.506:00
55
PM2.507:00
55
PM2.508:00
56
PM2.509:00
56
PM2.510:00
58
PM2.511:00
57
PM2.512:00
57
PM2.513:00
Worst at 04:00 66Best at 14:00 52

Pollutants now

concentration · sub-index
What it isPM2.5

Fine particles under 2.5 µm — small enough to reach the lungs and bloodstream. They come from wildfires, diesel engines, industry and smoke, and are the pollutant most linked to heart and lung disease.

WHO 2021 guideline: 15.0 µg/m³ (24-h mean)
What it isPM10

Inhalable particles up to 10 µm: road and construction dust, pollen, soot and sea salt. They irritate the nose, throat and airways and worsen asthma and bronchitis.

WHO 2021 guideline: 45.0 µg/m³ (24-h mean)
What it isOzone (O₃)

Ground-level ozone forms when sunlight reacts with vehicle and industrial gases. It peaks on hot, sunny afternoons and causes coughing, chest pain and reduced lung function during exercise.

WHO 2021 guideline: 100 µg/m³ (24-h mean)
What it isNitrogen dioxide (NO₂)

A gas produced mainly by fuel burning in cars, trucks and power plants. Highest near busy roads. It inflames the airways and increases asthma attacks.

WHO 2021 guideline: 25.0 µg/m³ (24-h mean)
What it isSulfur dioxide (SO₂)

A gas released by burning coal and oil in industry, refineries and ships. It irritates the eyes and airways; people with asthma are especially sensitive.

WHO 2021 guideline: 40.0 µg/m³ (24-h mean)
What it isCarbon monoxide (CO)

A colourless, odourless gas from incomplete combustion — vehicle exhaust, stoves and fires. It reduces the blood's ability to carry oxygen and is dangerous in enclosed spaces.

WHO 2021 guideline: 4000 µg/m³ (24-h mean)
Tap a pollutant to read about it

Tap a day to see it hour by hour

Today28/09Patchy rain nearby22°15°
ModerateMain pollutant PM2.5avg 61min 52
78max
Hour by hourAQI · PM2.5 · main
00:006215µg/m³PM2.5
01:006315µg/m³PM2.5
02:006315µg/m³PM2.5
03:006315µg/m³PM2.5
04:006316µg/m³PM2.5
05:006919µg/m³PM2.5
06:007823µg/m³PM2.5
07:007522µg/m³PM2.5
08:006517µg/m³PM2.5
09:006215µg/m³PM2.5
10:005712µg/m³PM2.5
11:005511µg/m³PM2.5
12:005310µg/m³PM2.5
13:005210µg/m³PM2.5
14:005210µg/m³PM2.5
15:005310µg/m³PM2.5
16:005511µg/m³PM2.5
17:005712µg/m³PM2.5
18:005612µg/m³PM2.5
19:005913µg/m³PM2.5
20:006014µg/m³PM2.5
21:006114µg/m³PM2.5
22:006315µg/m³PM2.5
23:006114µg/m³PM2.5
Worst at 06:00Best at 13:00
Tomorrow29/09Overcast19°15°
ModerateMain pollutant PM2.5avg 53min 25
66max
Hour by hourAQI · PM2.5 · main
00:005914µg/m³PM2.5
01:005813µg/m³PM2.5
02:006014µg/m³PM2.5
03:006416µg/m³PM2.5
04:006617µg/m³PM2.5
05:005913µg/m³PM2.5
06:005612µg/m³PM2.5
07:005512µg/m³PM2.5
08:005511µg/m³PM2.5
09:005612µg/m³PM2.5
10:005612µg/m³PM2.5
11:005813µg/m³PM2.5
12:005713µg/m³PM2.5
13:005712µg/m³PM2.5
14:005511µg/m³PM2.5
15:005511µg/m³PM2.5
16:005411µg/m³PM2.5
17:005411µg/m³PM2.5
18:005612µg/m³PM2.5
19:005411µg/m³PM2.5
20:00448µg/m³PM2.5
21:00366µg/m³PM2.5
22:00305µg/m³PM2.5
23:00255µg/m³PM2.5
Worst at 04:00Best at 23:00
Wed30/09Overcast19°13°
GoodMain pollutant PM2.5avg 35min 23
50max
Hour by hourAQI · PM2.5 · main
00:00244µg/m³O₃
01:00234µg/m³PM2.5
02:00234µg/m³PM2.5
03:00275µg/m³PM2.5
04:00255µg/m³PM2.5
05:00265µg/m³PM2.5
06:00316µg/m³PM2.5
07:00346µg/m³PM2.5
08:00377µg/m³PM2.5
09:00458µg/m³PM2.5
10:00448µg/m³PM2.5
11:00316µg/m³PM2.5
12:00335µg/m³O₃
13:00365µg/m³O₃
14:00395µg/m³O₃
15:00395µg/m³O₃
16:00384µg/m³O₃
17:00374µg/m³O₃
18:00364µg/m³O₃
19:00355µg/m³O₃
20:00346µg/m³PM2.5
21:00428µg/m³PM2.5
22:00438µg/m³PM2.5
23:00509µg/m³PM2.5
Worst at 23:00Best at 01:00
Thu01/10Overcast20°13°
ModerateMain pollutant PM2.5avg 43min 29
57max
Hour by hourAQI · PM2.5 · main
00:005411µg/m³PM2.5
01:005712µg/m³PM2.5
02:005712µg/m³PM2.5
03:005411µg/m³PM2.5
04:00489µg/m³PM2.5
05:00397µg/m³PM2.5
06:00346µg/m³PM2.5
07:00326µg/m³PM2.5
08:00367µg/m³PM2.5
09:00326µg/m³PM2.5
10:00295µg/m³PM2.5
11:00295µg/m³PM2.5
12:00346µg/m³O₃
13:00376µg/m³O₃
14:00407µg/m³PM2.5
15:00428µg/m³PM2.5
16:00428µg/m³PM2.5
17:00417µg/m³PM2.5
18:00417µg/m³PM2.5
19:00499µg/m³PM2.5
20:005411µg/m³PM2.5
21:005511µg/m³PM2.5
22:005411µg/m³PM2.5
23:00499µg/m³PM2.5
Worst at 01:00Best at 10:00

Index scale

US EPA · 0 to 500
0 – 50
GoodClean air, no risk for anyone.
51 – 100
ModerateAcceptable; unusually sensitive people may notice mild discomfort.
101 – 150
Unhealthy for sensitive groupsChildren, older adults and people with heart or lung disease may have symptoms.
151 – 200
UnhealthyEveryone may feel effects; sensitive groups, more serious ones.
201 – 300
Very unhealthyHealth alert: increased risk for the whole population.
301 – 500
HazardousEmergency: the entire population is likely to be affected.

Index computed with the US EPA method from concentrations modelled by CAMS (Copernicus). These are model estimates, not station measurements; for official data check your local environmental agency.

Weather map

Wind, rain and temperature — Cepães
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Air quality in Cepães, Fafe (BR)

Air quality in the parish of Cepães, Fafe (Braga): air quality index (AQI), PM2.5, PM10, ozone, nitrogen dioxide, sulfur dioxide and carbon monoxide for today, tomorrow and the day after.