Air Pollution in Mem Martins: Real-time Air Quality Index and smog alert.

Current data from stations: PT03089
Locations: « Sintra (São Pedro de Penaferrim) Mem Martins
Pollution and air quality forecast for Mem Martins. Today is Saturday, May 3, 2025. The following air pollution values have been recorded for Mem Martins:
  1. ozone (O3) - 84 (Moderate)
  2. nitrogen dioxide (NO2) - 7 (Good)
  3. sulfur dioxide (SO2) - 3 (Good)
  4. particulate matter (PM2.5) dust - 8 (Good)
  5. particulate matter (PM10) suspended dust - 28 (Moderate)
Real-time Air Quality Index (AQI) for Mem Martins, Wednesday, January 17, 2024: 2.

air quality index: 1
AQI 2 Moderate

What is the air quality in Mem Martins today? Is the air polluted in Mem Martins?. Is there smog?

Today (Wednesday, January 17, 2024) air quality is moderate in Mem Martins. Some pollutants in Mem Martins may slightly affect very few hypersensitive individuals. Air pollutants in Mem Martins may cause minor breathing discomfort to sensitive people.


How is the O3 level today in Mem Martins? (ozone (O3))
84 (Moderate)

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

What is the level of SO2 pollution? (sulfur dioxide (SO2))
3 (Good)

What is the current level of PM2.5 in Mem Martins? (particulate matter (PM2.5) dust)
Today's PM2.5 level is: 8 (Good) For comparison, the highest level of PM2.5 in Mem Martins in the last 7 days was: 19 (Wednesday, January 10, 2024) and the lowest: 6 (Monday, January 15, 2024). The highest PM2.5 values were recorded: 22 (October 2017). The lowest level of particulate matter PM2.5 pollution occurs in month: June (0.42).

What is the level of PM10 today in Mem Martins? (particulate matter (PM10) suspended dust)
The current level of particulate matter PM10 in Mem Martins is: 28 (Moderate) The highest PM10 values usually occur in month: 27 (October 2017). The lowest value of particulate matter PM10 pollution in Mem Martins is usually recorded in: June (1.3).



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

O3 84 (Moderate)

NO2 7 (Good)

SO2 3 (Good)

PM2,5 8 (Good)

PM10 28 (Moderate)

Data on air pollution from recent days in Mem Martins

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
o3 35
Good
39
Good
41
Good
51
Good
54
Good
66
Good
72
Moderate
91
Moderate
pm25 19
Moderate
17
Moderate
10
Good
12
Good
16
Moderate
6
Good
8
Good
9
Good
pm10 30
Moderate
27
Moderate
17
Good
27
Moderate
42
Moderate
22
Moderate
40
Moderate
32
Moderate
no2 44
Moderate
27
Good
20
Good
17
Good
13
Good
12
Good
8
Good
4
Good
so2 3
Good
7
Good
3
Good
3
Good
3
Good
3
Good
3
Good
3
Good
data source »
Air pollution in Mem Martins from September 2017 to May 2020
pollution pm25 hikersbay.com
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 2018-02 2018-01 2017-10 2017-09
so2 0.59 (Good) 0.6 (Good) 0.46 (Good) 0.56 (Good) 1.3 (Good) 2.7 (Good) 0.86 (Good) 0.53 (Good) 0.85 (Good) 0.3 (Good) 0.18 (Good) 0.26 (Good) 0.79 (Good) 0.51 (Good) 1.1 (Good) 0.34 (Good) 0.63 (Good) 0.84 (Good) 2.6 (Good) 0.22 (Good) 0.49 (Good) 0.41 (Good) 1.4 (Good) 0.74 (Good) 0.41 (Good) 0.13 (Good) 0.41 (Good) 0.48 (Good) 0.21 (Good) - (Good) - (Good)
no2 7.1 (Good) 7.8 (Good) 8.2 (Good) 21 (Good) 22 (Good) 18 (Good) 9.6 (Good) 11 (Good) 7 (Good) 3.7 (Good) 3.4 (Good) 5.1 (Good) 4.3 (Good) 8.2 (Good) 12 (Good) 27 (Good) 17 (Good) 23 (Good) 19 (Good) 16 (Good) 12 (Good) 7.6 (Good) 4.2 (Good) 6.9 (Good) 6.4 (Good) 10 (Good) 8.9 (Good) 21 (Good) 15 (Good) 21 (Good) 7.3 (Good)
o3 69 (Good) 82 (Moderate) 80 (Moderate) 56 (Good) 55 (Good) 54 (Good) 59 (Good) 59 (Good) 72 (Moderate) 61 (Good) 65 (Good) 69 (Good) 67 (Good) 79 (Moderate) 76 (Moderate) 59 (Good) 51 (Good) 36 (Good) 52 (Good) 70 (Moderate) 75 (Moderate) 75 (Moderate) 64 (Good) 60 (Good) 83 (Moderate) 79 (Moderate) 78 (Moderate) 64 (Good) 64 (Good) 70 (Moderate) 66 (Good)
pm25 5 (Good) 5.7 (Good) 9.4 (Good) 13 (Moderate) 12 (Good) 0.91 (Good) 0.5 (Good) 0.63 (Good) 1.5 (Good) 0.96 (Good) 1.2 (Good) 0.42 (Good) 0.82 (Good) 0.92 (Good) 1 (Good) 1.3 (Good) 2.6 (Good) 3 (Good) 2 (Good) 1.9 (Good) 2.3 (Good) 0.85 (Good) 1.3 (Good) 1.7 (Good) 3.9 (Good) 4.1 (Good) 4.7 (Good) 8.2 (Good) 7.6 (Good) 22 (Moderate) 3.5 (Good)
pm10 14 (Good) 12 (Good) 20 (Moderate) 24 (Moderate) 21 (Moderate) 7.5 (Good) 2.4 (Good) 2.5 (Good) 3.4 (Good) 1.9 (Good) 2.6 (Good) 1.3 (Good) 2.8 (Good) 2.1 (Good) 2 (Good) 2.9 (Good) 4 (Good) 5.8 (Good) 3.7 (Good) 3.6 (Good) 4.7 (Good) 2 (Good) 3.8 (Good) 2.8 (Good) 6.7 (Good) 9.5 (Good) 12 (Good) 16 (Good) 17 (Good) 27 (Moderate) 10 (Good)
data source »

PT03089

Wednesday, January 17, 2024, 7:00 AM

O3 84 (Moderate)

ozone (O3)

NO2 6.9 (Good)

nitrogen dioxide (NO2)

SO2 2.8 (Good)

sulfur dioxide (SO2)

PM2,5 7.8 (Good)

particulate matter (PM2.5) dust

PM10 28 (Moderate)

particulate matter (PM10) suspended dust

PT03089

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
o3 91 72 66 54 51 41 39 35
pm25 9.3 7.9 6 16 12 9.9 17 19
pm10 32 40 22 42 27 17 27 30
no2 3.7 8.4 12 13 17 20 27 44
so2 2.8 3 3 2.7 2.8 3.4 6.6 2.7

PT03089

2017-09   2020-05
pollution pm25 hikersbay.com
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 2018-02 2018-01 2017-10 2017-09
pm25 5 5.7 9.4 13 12 0.91 0.5 0.63 1.5 0.96 1.2 0.42 0.82 0.92 1 1.3 2.6 3 2 1.9 2.3 0.85 1.3 1.7 3.9 4.1 4.7 8.2 7.6 22 3.5
pm10 14 12 20 24 21 7.5 2.4 2.5 3.4 1.9 2.6 1.3 2.8 2.1 2 2.9 4 5.8 3.7 3.6 4.7 2 3.8 2.8 6.7 9.5 12 16 17 27 10
no2 7.1 7.8 8.2 21 22 18 9.6 11 7 3.7 3.4 5.1 4.3 8.2 12 27 17 23 19 16 12 7.6 4.2 6.9 6.4 10 8.9 21 15 21 7.3
o3 69 82 80 56 55 54 59 59 72 61 65 69 67 79 76 59 51 36 52 70 75 75 64 60 83 79 78 64 64 70 66
so2 0.59 0.6 0.46 0.56 1.3 2.7 0.86 0.53 0.85 0.3 0.18 0.26 0.79 0.51 1.1 0.34 0.63 0.84 2.6 0.22 0.49 0.41 1.4 0.74 0.41 0.13 0.41 0.48 0.21 - -

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