Air Pollution in Northern Ireland: Real-time Air Quality Index and smog alert.

The latest data Last 7 days Northern Ireland pollution February 2016 - May 2020 Quality of life
Current data from stations: Armagh Roadside Ballymena Ballykeel Belfast Centre Belfast Stockman's Lane Derry Rosemount Lough Navar
Locations: Belfast » Fermanagh and Omagh » Derry City and Strabane » Armagh City Banbridge and Craigavon » Mid and East Antrim »
Pollution and air quality forecast for Northern Ireland. Today is Wednesday, April 24, 2024. The following air pollution values have been recorded for Northern Ireland:
  1. particulate matter (PM10) suspended dust - 12 (Good)
  2. nitrogen dioxide (NO2) - 3 (Good)
  3. sulfur dioxide (SO2) - 1 (Good)
  4. particulate matter (PM2.5) dust - 5 (Good)
  5. ozone (O3) - 60 (Good)
Real-time Air Quality Index (AQI) for Northern Ireland, Wednesday, February 7, 2024: 1.

air quality index: 0
AQI 1 Good

What is the air quality in Northern Ireland today? Is the air polluted in Northern Ireland?. Is there smog?

Today (Wednesday, February 7, 2024) air quality is good. The air quality has no effect on health. Everyone can continue their outdoor activities normally in Northern Ireland.


What is the level of PM10 today in Northern Ireland? (particulate matter (PM10) suspended dust)
The current level of particulate matter PM10 in Northern Ireland is: 12 (Good) The highest PM10 values usually occur in month: 23 (April 2019). The lowest value of particulate matter PM10 pollution in Northern Ireland is usually recorded in: July (9.2).

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

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

What is the current level of PM2.5 in Northern Ireland? (particulate matter (PM2.5) dust)
Today's PM2.5 level is: 5 (Good) For comparison, the highest level of PM2.5 in Northern Ireland in the last 7 days was: 8 (Monday, February 5, 2024) and the lowest: 1 (Friday, February 2, 2024). The highest PM2.5 values were recorded: 23 (November 2016). The lowest level of particulate matter PM2.5 pollution occurs in month: May (5.3).

How is the O3 level today in Northern Ireland? (ozone (O3))
60 (Good)



Current data Wednesday, February 7, 2024, 7:00 AM

PM10 12 (Good)

NO2 3 (Good)

SO2 1 (Good)

PM2,5 5 (Good)

O3 60 (Good)

Data on air pollution from recent days in Northern Ireland

index 2024-04-10 2024-04-11 2024-04-12 2024-04-13 2024-04-14 2024-04-15 2024-04-16 2024-01-31 2024-02-02 2024-02-03 2024-02-04 2024-02-05 2024-02-06 2024-02-07
no2 7
Good		 16
Good		 14
Good		 9
Good		 10
Good		 12
Good		 3
Good		 -
Good		 -
Good		 -
Good		 -
Good		 -
Good		 -
Good		 -
Good
pm10 8
Good		 11
Good		 9
Good		 10
Good		 12
Good		 9
Good		 13
Good		 4
Good		 1
Good		 6
Good		 12
Good		 16
Good		 7
Good		 7
Good
so2 1
Good		 1
Good		 1
Good		 1
Good		 1
Good		 1
Good		 1
Good		 -
Good		 -
Good		 -
Good		 -
Good		 -
Good		 -
Good		 -
Good
o3 42
Good		 54
Good		 52
Good		 67
Good		 66
Good		 80
Moderate		 81
Moderate		 71
Moderate		 64
Good		 70
Moderate		 67
Good		 65
Good		 58
Good		 13
Good
pm25 5
Good		 6
Good		 5
Good		 5
Good		 6
Good		 5
Good		 7
Good		 2
Good		 1
Good		 3
Good		 6
Good		 8
Good		 3
Good		 3
Good
data source »
Air pollution in Northern Ireland from February 2016 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 2017-12 2017-11 2017-10 2017-09 2017-08 2017-07 2017-06 2017-05 2017-04 2017-03 2017-02 2017-01 2016-12 2016-11 2016-10 2016-09 2016-08 2016-07 2016-06 2016-05 2016-04 2016-03 2016-02
no2 14 (Good) 15 (Good) 20 (Good) 25 (Good) 31 (Good) 30 (Good) 32 (Good) 26 (Good) 20 (Good) 18 (Good) 16 (Good) 20 (Good) 22 (Good) 24 (Good) 25 (Good) 29 (Good) 33 (Good) 32 (Good) 28 (Good) 27 (Good) 23 (Good) 18 (Good) 18 (Good) 24 (Good) 24 (Good) 22 (Good) 27 (Good) 33 (Good) 30 (Good) 32 (Good) 35 (Good) 24 (Good) 23 (Good) 20 (Good) 17 (Good) 19 (Good) 21 (Good) 22 (Good) 28 (Good) 29 (Good) 33 (Good) 33 (Good) 41 (Moderate) 27 (Good) 22 (Good) 20 (Good) 19 (Good) 21 (Good) 21 (Good) 24 (Good) 33 (Good) 57 (Moderate)
pm10 13 (Good) 18 (Good) 16 (Good) 14 (Good) 13 (Good) 14 (Good) 16 (Good) 13 (Good) 13 (Good) 11 (Good) 9.4 (Good) 10 (Good) 11 (Good) 23 (Moderate) 15 (Good) 21 (Moderate) 15 (Good) 14 (Good) 15 (Good) 12 (Good) 11 (Good) 9.7 (Good) 12 (Good) 17 (Good) 15 (Good) 15 (Good) 17 (Good) 18 (Good) 14 (Good) 12 (Good) 13 (Good) 13 (Good) 11 (Good) 9.6 (Good) 9.2 (Good) 9.9 (Good) 16 (Good) 16 (Good) 17 (Good) 15 (Good) 19 (Good) 18 (Good) 23 (Moderate) 19 (Good) 12 (Good) 13 (Good) 10 (Good) 17 (Good) 16 (Good) 14 (Good) 14 (Good) 19 (Good)
so2 6.2 (Good) 8.5 (Good) 5 (Good) 4.8 (Good) 6.8 (Good) 8.3 (Good) 6.9 (Good) 6.1 (Good) 5.3 (Good) 5.6 (Good) 8.1 (Good) 5.6 (Good) 8.4 (Good) 8.5 (Good) 4.8 (Good) 6 (Good) 9 (Good) 5.5 (Good) 7.8 (Good) 4.7 (Good) 3.6 (Good) 3.5 (Good) 5.1 (Good) 5.2 (Good) 3.4 (Good) 3.5 (Good) 4.2 (Good) 4.2 (Good) 4.6 (Good) 5.4 (Good) 5.2 (Good) 4.6 (Good) 7.9 (Good) 10 (Good) 6.1 (Good) 9.6 (Good) 10 (Good) 21 (Good) 7.3 (Good) 7.3 (Good) 8.1 (Good) 6 (Good) 7.8 (Good) 11 (Good) 10 (Good) 8.5 (Good) 9.3 (Good) 7.2 (Good) 5.7 (Good) 3.9 (Good) 3 (Good) 10 (Good)
o3 62 (Good) 66 (Good) 57 (Good) 52 (Good) 49 (Good) 44 (Good) 33 (Good) 41 (Good) 39 (Good) 46 (Good) 41 (Good) 54 (Good) 61 (Good) 71 (Moderate) 67 (Good) 56 (Good) 46 (Good) 46 (Good) 44 (Good) 48 (Good) 43 (Good) 35 (Good) 44 (Good) 54 (Good) 65 (Good) 64 (Good) 57 (Good) 54 (Good) 52 (Good) 48 (Good) 46 (Good) 48 (Good) 42 (Good) 38 (Good) 40 (Good) 48 (Good) 60 (Good) 69 (Good) 57 (Good) 55 (Good) 47 (Good) 39 (Good) 33 (Good) 35 (Good) 37 (Good) 41 (Good) 37 (Good) 50 (Good) 65 (Good) 62 (Good) 52 (Good) 38 (Good)
pm25 5.3 (Good) 8.1 (Good) 6.4 (Good) 6.1 (Good) 6.8 (Good) 8.8 (Good) 11 (Good) 5.9 (Good) 6 (Good) 6.3 (Good) 6.7 (Good) 6.5 (Good) 7.5 (Good) 17 (Moderate) 7.4 (Good) 13 (Moderate) 10 (Good) 11 (Good) 11 (Good) 7.8 (Good) 6.3 (Good) 7.1 (Good) 8.7 (Good) 13 (Good) 12 (Good) 12 (Good) 13 (Good) 13 (Good) 12 (Good) 11 (Good) 8.6 (Good) 7.1 (Good) 7.3 (Good) 7 (Good) 7.3 (Good) 7 (Good) 11 (Good) 7.8 (Good) 11 (Good) 10 (Good) 14 (Moderate) 13 (Moderate) 23 (Moderate) 12 (Good) 7.1 (Good) 8.6 (Good) 6.8 (Good) 11 (Good) 8.7 (Good) 7.1 (Good) 8.5 (Good) - (Good)
data source »

Quality of life in Northern Ireland

Green and Parks in the City

Northern Ireland 61%

Isle of Man: 78% Ireland: 72% Netherlands: 82% Belgium: 64% Faroe Islands: 87%

particulate matter PM2.5

Northern Ireland 12 (Good)

Pleasure of spending time in the city

Northern Ireland 88%

Isle of Man: 83% Ireland: 78% Netherlands: 88% Belgium: 64% Faroe Islands: 100%

particulate matter PM10

Northern Ireland 19 (Good)

Air Pollution

Northern Ireland 24%

Isle of Man: 13% Ireland: 24% Netherlands: 21% Belgium: 45% Faroe Islands: 0%

Garbage Disposal

Northern Ireland 62%

Isle of Man: 78% Ireland: 61% Netherlands: 79% Belgium: 54% Faroe Islands: 88%

Availability and quality of drinking water

Northern Ireland 68%

Isle of Man: 88% Ireland: 72% Netherlands: 92% Belgium: 70% Faroe Islands: 98%

Cleanliness and tidiness

Northern Ireland 58%

Isle of Man: 69% Ireland: 52% Netherlands: 77% Belgium: 46% Faroe Islands: 94%

Noise and Light pollution

Northern Ireland 42%

Isle of Man: 12% Ireland: 37% Netherlands: 31% Belgium: 54% Faroe Islands: 21%

Water Pollution

Northern Ireland 35%

Isle of Man: 13% Ireland: 37% Netherlands: 17% Belgium: 42% Faroe Islands: 7.7%
Source: Numbeo


Armagh Roadside

Tuesday, April 16, 2024, 1:00 AM

PM10 12 (Good)

particulate matter (PM10) suspended dust

NO2 3 (Good)

nitrogen dioxide (NO2)

Ballymena Ballykeel

Tuesday, April 16, 2024, 12:00 AM

SO2 2 (Good)

sulfur dioxide (SO2)

NO2 1 (Good)

nitrogen dioxide (NO2)

Belfast Centre

Tuesday, April 16, 2024, 12:00 AM

PM2,5 5 (Good)

particulate matter (PM2.5) dust

SO2 1 (Good)

sulfur dioxide (SO2)

PM10 10 (Good)

particulate matter (PM10) suspended dust

NO2 3 (Good)

nitrogen dioxide (NO2)

O3 73 (Moderate)

ozone (O3)

Belfast Stockman's Lane

Tuesday, April 16, 2024, 12:00 AM

PM10 14 (Good)

particulate matter (PM10) suspended dust

NO2 5 (Good)

nitrogen dioxide (NO2)

Derry Rosemount

Tuesday, April 16, 2024, 1:00 AM

SO2 1 (Good)

sulfur dioxide (SO2)

PM2,5 8 (Good)

particulate matter (PM2.5) dust

O3 89 (Moderate)

ozone (O3)

NO2 1 (Good)

nitrogen dioxide (NO2)

PM10 17 (Good)

particulate matter (PM10) suspended dust

Lough Navar

Wednesday, February 7, 2024, 7:00 AM

PM2,5 3 (Good)

particulate matter (PM2.5) dust

O3 18 (Good)

ozone (O3)

PM10 7 (Good)

particulate matter (PM10) suspended dust

Armagh Roadside

index 2024-04-16 2024-04-15 2024-04-14 2024-04-13 2024-04-12 2024-04-11 2024-04-10
no2 3.5 13 12 13 18 19 4.5
pm10 12 9.4 12 12 9.7 11 7

Ballymena Ballykeel

index 2024-04-16 2024-04-15 2024-04-14 2024-04-13 2024-04-12 2024-04-11 2024-04-10
so2 2 2 1.9 1.6 1.8 1.9 2
no2 1 2.9 4.8 3.3 5.5 8.2 5.8

Belfast Centre

index 2024-04-16 2024-04-15 2024-04-14 2024-04-13 2024-04-12 2024-04-11 2024-04-10
pm10 10 7.4 9.9 7.8 7.9 9.1 7.5
so2 1 1 0.65 0.74 0.48 0.43 1
o3 73 71 57 56 40 43 34
pm25 5 4.1 5 4.6 4.3 5 4
no2 3 9.1 14 11 17 17 13

Belfast Stockman's Lane

index 2024-04-16 2024-04-15 2024-04-14 2024-04-13 2024-04-12 2024-04-11 2024-04-10
pm10 14 11 14 11 11 13 13
no2 5 32 19 16 26 33 9.5

Derry Rosemount

index 2024-04-16 2024-04-15 2024-04-14 2024-04-13 2024-04-12 2024-04-11 2024-04-10
so2 1 0.63 1 0.68 0.74 0.73 1
o3 89 89 75 78 64 66 50
pm10 17 10 12 10 7.1 10 5.5
no2 1 1.9 2.6 2.3 3.7 4.6 3.4
pm25 8 5.9 6.1 5.7 4.7 6.6 5

Lough Navar

index 2024-02-07 2024-02-06 2024-02-05 2024-02-04 2024-02-03 2024-02-02 2024-01-31
o3 13 58 65 67 70 64 71
pm25 3.1 3.3 8.1 6.2 3.2 1 2.4
pm10 7.1 6.6 16 12 5.8 1 4.3

Armagh Roadside

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 2017-12 2017-11 2017-10 2017-09 2017-08 2017-07 2017-06 2017-05 2017-04 2017-03 2017-02 2017-01 2016-12 2016-11 2016-10 2016-09 2016-08 2016-07 2016-06 2016-05 2016-04 2016-03 2016-02
pm10 15 22 22 18 16 15 18 17 13 11 10 12 15 32 18 27 21 16 19 18 15 11 14 23 20 20 23 27 17 15 18 16 9.7 8.5 8.2 8.6 17 16 18 16 23 19 23 19 10 14 8.3 14 16 14 18 41
no2 23 23 22 23 45 28 28 25 21 17 15 18 22 25 27 32 34 31 26 26 23 17 17 21 20 22 32 44 35 37 36 23 20 19 16 15 18 25 27 25 30 30 32 21 21 18 17 16 18 19 24 32

Ballymena Ballykeel

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 2017-12 2017-11 2017-10 2017-09 2017-08 2017-07 2017-06 2017-05 2017-04 2017-03 2017-02 2017-01 2016-12 2016-11 2016-10 2016-09 2016-08 2016-07 2016-06 2016-05 2016-04 2016-03 2016-02
so2 8.6 9.8 3.5 2.3 9 13 5.5 3 0.87 1.7 1.8 1.6 3.1 5.3 4.4 4.6 5.3 3.2 2.9 3.1 2.4 2.7 2.5 2.4 2.1 2.5 2.9 3.3 - 3.3 3.1 1.6 1.7 1.9 1.2 1.2 1.8 34 3.5 2.9 3.6 4.1 2 12 2.2 5 1 0.32 1 1.1 1.5 0.92
no2 5.8 6.2 10 12 15 16 21 16 10 12 9.7 14 14 18 11 20 24 21 19 16 11 7.8 7.1 12 14 14 14 26 23 24 19 13 12 9.9 8.6 6.6 13 12 18 20 21 19 26 20 11 11 8.3 9.7 10 - - -

Belfast Centre

2016-02   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 2017-12 2017-11 2017-10 2017-09 2017-08 2017-07 2017-06 2017-05 2017-04 2017-03 2017-02 2017-01 2016-12 2016-11 2016-10 2016-09 2016-08 2016-07 2016-06 2016-05 2016-04 2016-03 2016-02
o3 64 66 44 29 30 27 23 30 32 40 38 47 56 66 56 45 30 29 33 40 38 30 41 47 55 55 46 44 40 37 35 40 39 34 38 44 56 63 46 47 38 29 26 33 35 39 36 47 61 56 49 35
no2 14 16 27 46 47 45 40 28 18 16 15 22 22 28 23 29 39 35 32 25 20 22 20 30 27 27 33 32 32 33 32 25 22 15 16 18 24 19 31 31 36 42 49 31 21 18 18 28 26 27 27 62
so2 4.2 3.4 2.4 2.2 3.5 3 2.9 4.1 7.2 7 7.5 7.8 11 11 6.8 5.3 14 8.5 15 7.1 5.7 4 8.8 7.4 4.7 4 3.2 4.2 3 6.9 9.7 9.7 9.4 16 5.4 12 14 13 8.5 9.1 6.6 5.8 9.4 12 7.5 11 15 10 6.7 5.3 4.5 19
pm25 6.4 8.8 7.1 7.3 8.6 9.5 11 6.7 8.2 9.3 12 10 12 21 9.8 16 13 14 12 11 10 15 12 17 15 14 13 11 12 10 8.7 7.8 9.2 9.8 10 9 13 8.9 11 10 14 14 20 13 9.8 12 9.6 14 11 7.5 8.5 -
pm10 12 16 13 14 14 14 20 13 13 12 9.5 11 12 26 13 21 14 15 15 14 13 17 23 23 18 18 19 18 14 12 12 13 13 11 11 11 18 23 21 16 20 22 27 32 16 16 15 22 19 16 8.5 -

Belfast Stockman's Lane

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 2017-12 2017-11 2017-10 2017-09 2017-08 2017-07 2017-06 2017-05 2017-04 2017-03 2017-02 2017-01 2016-12 2016-11 2016-10 2016-09 2016-08 2016-07 2016-06 2016-05 2016-04 2016-03 2016-02
no2 23 22 33 37 39 47 52 50 44 40 35 43 44 38 57 51 54 56 48 55 52 42 42 46 48 40 44 52 49 52 62 53 55 50 42 48 42 48 51 55 63 63 75 51 52 46 44 45 40 42 49 77
pm10 16 22 21 16 16 17 20 18 16 15 16 15 14 27 20 26 15 14 13 9.9 8.7 12 14 18 17 15 19 19 15 15 20 22 22 19 16 18 24 24 25 21 26 26 31 25 22 20 17 23 21 18 23 1.6

Derry Rosemount

2016-04   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 2017-12 2017-11 2017-10 2017-09 2017-08 2017-07 2017-06 2017-05 2017-04 2017-03 2017-02 2017-01 2016-12 2016-11 2016-10 2016-09 2016-08 2016-07 2016-06 2016-05 2016-04
o3 60 65 61 56 58 51 35 48 44 52 44 58 66 75 74 62 57 59 51 56 51 42 50 62 73 71 64 61 59 56 58 57 49 43 45 52 66 75 63 62 52 42 38 39 42 45 41 56 69 66
no2 5.4 7.7 8.7 6.7 7.8 12 19 9.9 7.6 4.5 3.9 6 7.8 13 6.8 12 14 15 13 12 9.1 4 4.6 8.4 9.5 9.4 12 13 12 13 24 6.6 6.9 4.6 4 4.5 7.8 5.9 12 13 14 14 22 15 6.9 6.4 4.5 7.6 9.3 9.9
pm25 5.6 9.3 7.6 6.5 7.7 13 17 7.6 6.3 6.3 5.7 6.1 7.2 18 7.5 16 14 14 13 8.3 5.7 4.4 5.5 9.2 8.1 9.8 12 14 13 11 8.5 6.4 5.5 4.1 4.5 5.1 9.1 6.6 10 9.7 13 12 26 11 4.4 5.7 3.9 7.5 6.3 6.7
so2 5.8 12 9.3 9.7 7.8 9 12 11 8 8.2 15 7.5 12 8.9 3.1 8.2 8.1 4.7 5.3 3.9 2.9 3.9 4.2 5.7 3.5 3.9 6.6 5 6.1 5.9 2.8 2.5 13 14 12 15 15 16 10 10 14 8.3 12 8.2 21 9.2 12 11 9.3 5.3
pm10 13 18 15 13 14 18 15 11 10 7.6 5.8 7.6 9.3 16 13 19 16 16 15 11 8.8 6.5 6.6 12 11 13 16 18 17 14 12 9.7 7.8 6.2 6.8 7.3 12 10 14 15 18 17 30 14 7.9 9.3 7 13 12 13

Lough Navar

2016-02   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 2017-12 2017-11 2017-10 2017-09 2017-08 2017-07 2017-06 2017-05 2017-04 2017-03 2017-02 2017-01 2016-12 2016-11 2016-10 2016-09 2016-08 2016-07 2016-06 2016-05 2016-04 2016-03 2016-02
o3 61 68 66 70 61 55 40 46 41 46 42 55 62 72 71 62 52 50 48 47 41 34 43 54 67 67 62 55 56 50 46 49 39 36 38 47 58 67 61 58 50 45 36 35 35 38 35 47 64 63 56 42
pm10 6.1 9.8 7.1 7.8 6.9 7.5 8.2 8.1 9.9 6.9 5 5.7 6 17 8.8 9.8 7 7.7 9.4 8.4 7.5 2 5 8.5 8 7 8.4 9.1 6.3 3.7 3.7 5.8 5.2 4.3 4.8 4.8 9.1 5.3 6.4 7 7.1 6.3 3 4.3 4.1 4.2 2.8 12 14 6.8 7.8 13
pm25 4 6.3 4.4 4.4 4 4.3 5 3.5 3.6 3.5 2.8 3.1 3.8 13 4.9 7.2 4.5 4.9 6.7 4.5 3.3 1.4 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

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