Air Pollution in São Sebastião: Real-time Air Quality Index and smog alert.

The latest data Last 7 days
Current data from stations: PT02006
Locations: « Santo António Dos Olivais São Sebastião
Pollution and air quality forecast for São Sebastião. Today is Friday, May 2, 2025. The following air pollution values have been recorded for São Sebastião:
  1. carbon monoxide (CO) - 44 (Good)
  2. nitrogen dioxide (NO2) - 4 (Good)
  3. particulate matter (PM10) suspended dust - 19 (Good)
Real-time Air Quality Index (AQI) for São Sebastião, Wednesday, January 17, 2024: 1.

air quality index: 0
AQI 1 Good

What is the air quality in São Sebastião today? Is the air polluted in São Sebastião?. Is there smog?

Today (Wednesday, January 17, 2024) air quality is good. The air quality has no effect on health. Everyone can continue their outdoor activities normally in São Sebastião.


How high is the CO level? (carbon monoxide (CO))
44 (Good)

How high is the level of NO2? (nitrogen dioxide (NO2))
4 (Good)

What is the level of PM10 today in São Sebastião? (particulate matter (PM10) suspended dust)
The current level of particulate matter PM10 in São Sebastião is: 19 (Good) The highest PM10 values usually occur in month: 80 (September 2018). The lowest value of particulate matter PM10 pollution in São Sebastião is usually recorded in: April (13).



Current data Wednesday, January 17, 2024, 7:00 AM

CO 44 (Good)

NO2 4 (Good)

PM10 19 (Good)

Data on air pollution from recent days in São Sebastião

index 2024-01-10 2024-01-11 2024-01-12 2024-01-13 2024-01-14 2024-01-15 2024-01-16 2024-01-17
pm10 18
Good		 22
Moderate		 18
Good		 20
Moderate		 16
Good		 13
Good		 21
Moderate		 25
Moderate
no2 9
Good		 8
Good		 8
Good		 3
Good		 4
Good		 6
Good		 3
Good		 2
Good
co 272
Good		 356
Good		 248
Good		 98
Good		 102
Good		 110
Good		 69
Good		 43
Good
data source »

Air pollution in São Sebastião from March 2018 to May 2020

index 2020-05 2020-04 2020-03 2020-02 2020-01 2019-12 2019-11 2019-10 2019-09 2019-08 2019-07 2019-06 2019-05 2019-04 2019-03 2019-02 2019-01 2018-12 2018-11 2018-10 2018-09 2018-08 2018-07 2018-06 2018-05 2018-04 2018-03
no2 12 (Good) 14 (Good) 22 (Good) 29 (Good) - (Good) - (Good) - (Good) - (Good) - (Good) - (Good) - (Good) - (Good) - (Good) - (Good) - (Good) - (Good) - (Good) - (Good) - (Good) - (Good) - (Good) - (Good) - (Good) 23 (Good) 22 (Good) 28 (Good) 30 (Good)
pm10 14 (Good) 13 (Good) 22 (Moderate) 25 (Moderate) 24 (Moderate) 23 (Moderate) 20 (Good) 21 (Moderate) 22 (Moderate) 19 (Good) 21 (Moderate) 16 (Good) 20 (Good) 18 (Good) 21 (Moderate) 30 (Moderate) 33 (Moderate) 28 (Moderate) 23 (Moderate) 26 (Moderate) 80 (Unhealthy for Sensitive Groups) 32 (Moderate) 20 (Good) 17 (Good) 24 (Moderate) 17 (Good) - (Good)
co 180 (Good) 199 (Good) 203 (Good) 208 (Good) - (Good) - (Good) - (Good) - (Good) - (Good) - (Good) - (Good) - (Good) - (Good) - (Good) - (Good) - (Good) - (Good) - (Good) - (Good) - (Good) - (Good) - (Good) - (Good) - (Good) - (Good) - (Good) - (Good)
data source »

PT02006

Wednesday, January 17, 2024, 7:00 AM

CO 44 (Good)

carbon monoxide (CO)

NO2 4 (Good)

nitrogen dioxide (NO2)

PM10 19 (Good)

particulate matter (PM10) suspended dust

PT02006

index 2024-01-17 2024-01-16 2024-01-15 2024-01-14 2024-01-13 2024-01-12 2024-01-11 2024-01-10
pm10 25 21 13 16 20 18 22 18
no2 1.5 3.1 6 3.9 3.2 7.9 8.3 9.3
co 43 69 110 102 98 248 356 272

PT02006

index 2020-05 2020-04 2020-03 2020-02 2020-01 2019-12 2019-11 2019-10 2019-09 2019-08 2019-07 2019-06 2019-05 2019-04 2019-03 2019-02 2019-01 2018-12 2018-11 2018-10 2018-09 2018-08 2018-07 2018-06 2018-05 2018-04 2018-03
no2 12 14 22 29 - - - - - - - - - - - - - - - - - - - 23 22 28 30
pm10 14 13 22 25 24 23 20 21 22 19 21 16 20 18 21 30 33 28 23 26 80 32 20 17 24 17 -
co 180 199 203 208 - - - - - - - - - - - - - - - - - - - - - - -

* Pollution data source: https://openaq.org (EEA Portugal) The data is licensed under CC-By 4.0