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Air Quality
Ilhéus · updated at 20:44Air Quality Index · US EPA scale
Good
Clean air, no risk for anyone.
Main pollutantPM2.57.6 µg/m³42
050100150200300+
Temperature21°Humidity96%Wind4 km/h NNEUV index0
Health recommendations
GoodGeneral population
Great day for outdoor activities. A good time to air out the house.
Sensitive groups
No restrictions.
children, older adults, pregnant women and people with asthma, COPD or heart diseaseOutdoor exerciseGo ahead
WindowsOpen is fine
MaskNot needed
Sensitive groupsNo restrictions
Next 24 hours
hourly AQI61PM2.512:00
61PM2.513:00
61PM2.514:00
63PM2.515:00
63PM2.516:00
62PM2.517:00
53PM2.518:00
51PM2.519:00
49PM2.520:00
51PM2.521:00
51PM2.522:00
51PM2.523:00
Tomorrow51PM2.500:00
49PM2.501:00
51PM2.502:00
51PM2.503:00
52PM2.504:00
52PM2.505:00
52PM2.506:00
55PM2.507:00
55PM2.508:00
58PM2.509:00
59PM2.510:00
60PM2.511:00
Worst at 15:00 63Best at 20:00 49
Pollutants now
concentration · sub-indexWhat 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 day to see it hour by hour
Today15/10
35°19°Moderate58max
Today15/1035°19°
35°19°Moderate
58maxHour by hourAQI · PM2.5 · main
00:00387µg/m³PM2.5
01:00397µg/m³PM2.5
02:00417µg/m³PM2.5
03:00428µg/m³PM2.5
04:00448µg/m³PM2.5
05:00397µg/m³PM2.5
06:00367µg/m³PM2.5
07:00448µg/m³PM2.5
08:005210µg/m³PM2.5
09:005310µg/m³PM2.5
10:005612µg/m³PM2.5
11:005512µg/m³PM2.5
12:005612µg/m³PM2.5
13:005612µg/m³PM2.5
14:005712µg/m³PM2.5
15:005813µg/m³PM2.5
16:005813µg/m³PM2.5
17:005813µg/m³PM2.5
18:005511µg/m³PM2.5
19:00468µg/m³PM2.5
20:00428µg/m³PM2.5
21:00428µg/m³PM2.5
22:00438µg/m³PM2.5
23:00448µg/m³PM2.5
Worst at 15:00Best at 06:00
Tomorrow16/1036°22°Moderate63max
Tomorrow16/1036°22°
36°22°Moderate
63maxHour by hourAQI · PM2.5 · main
00:00458µg/m³PM2.5
01:00468µg/m³PM2.5
02:00478µg/m³PM2.5
03:00489µg/m³PM2.5
04:00519µg/m³PM2.5
05:005411µg/m³PM2.5
06:005612µg/m³PM2.5
07:006014µg/m³PM2.5
08:005913µg/m³PM2.5
09:005813µg/m³PM2.5
10:005713µg/m³PM2.5
11:005713µg/m³PM2.5
12:006115µg/m³PM2.5
13:006114µg/m³PM2.5
14:006115µg/m³PM2.5
15:006316µg/m³PM2.5
16:006315µg/m³PM2.5
17:006215µg/m³PM2.5
18:005310µg/m³PM2.5
19:00519µg/m³PM2.5
20:00499µg/m³PM2.5
21:00519µg/m³PM2.5
22:00519µg/m³PM2.5
23:00519µg/m³PM2.5
Worst at 15:00Best at 00:00
Sat17/10
35°22°Moderate64max
Sat17/1035°22°
35°22°Moderate
64maxHour by hourAQI · PM2.5 · main
00:00519µg/m³PM2.5
01:00499µg/m³PM2.5
02:00519µg/m³PM2.5
03:00519µg/m³PM2.5
04:00529µg/m³PM2.5
05:005210µg/m³PM2.5
06:005210µg/m³PM2.5
07:005511µg/m³PM2.5
08:005511µg/m³PM2.5
09:005813µg/m³PM2.5
10:005913µg/m³PM2.5
11:006014µg/m³PM2.5
12:006114µg/m³PM2.5
13:006315µg/m³PM2.5
14:006416µg/m³PM2.5
15:006416µg/m³PM2.5
16:006316µg/m³PM2.5
17:005813µg/m³PM2.5
18:005310µg/m³PM2.5
19:00448µg/m³PM2.5
20:00417µg/m³PM2.5
21:00417µg/m³PM2.5
22:00438µg/m³PM2.5
23:00428µg/m³PM2.5
Worst at 14:00Best at 20:00
Sun18/1032°22°Moderate61max
Sun18/1032°22°
32°22°Moderate
61maxHour by hourAQI · PM2.5 · main
00:00428µg/m³PM2.5
01:00417µg/m³PM2.5
02:00397µg/m³PM2.5
03:00377µg/m³PM2.5
04:00336µg/m³PM2.5
05:00326µg/m³PM2.5
06:00356µg/m³PM2.5
07:00397µg/m³PM2.5
08:00428µg/m³PM2.5
09:00448µg/m³PM2.5
10:00529µg/m³PM2.5
11:005411µg/m³PM2.5
12:005612µg/m³PM2.5
13:005813µg/m³PM2.5
14:006114µg/m³PM2.5
15:006014µg/m³PM2.5
16:006014µg/m³PM2.5
17:005310µg/m³PM2.5
18:00519µg/m³PM2.5
19:00499µg/m³PM2.5
20:00489µg/m³PM2.5
21:00499µg/m³PM2.5
22:00499µg/m³PM2.5
23:00489µg/m³PM2.5
Worst at 14:00Best at 05:00
Index scale
US EPA · 0 to 5000 – 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 (e.g. CETESB, INEA, FEAM).
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Air quality in Banco Central, Ilhéus (BA)
Air quality in the district of Banco Central, Ilhéus (Bahia): air quality index (AQI), PM2.5, PM10, ozone, nitrogen dioxide, sulfur dioxide and carbon monoxide for today, tomorrow and the day after.
