London: Air Pollution Today — AQI Index, PM2.5/PM10, Smog Alerts and Forecast

Latest air quality data: London
Pollution and air quality forecast for London. Today is Thursday, August 27, 2026. The following air pollution values have been recorded for London:
  1. particulate matter (PM2.5) dust - 15 (Moderate)
  2. particulate matter (PM10) suspended dust - 18 (Good)
  3. ozone (O3) - 70 (Moderate)
  4. nitrogen dioxide (NO2) - 16 (Good)
  5. sulfur dioxide (SO2) - 1 (Good)
  6. carbon monoxide (CO) - 198 (Good)
Real-time Air Quality Index (AQI) for London, Thursday, August 27, 2026: 2.

air quality index: 1
AQI 2 Moderate

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

Today (Thursday, August 27, 2026) air quality is moderate in London. Some pollutants in London may slightly affect very few hypersensitive individuals. Air pollutants in London may cause minor breathing discomfort to sensitive people.


What is the current level of PM2.5 in London? (particulate matter (PM2.5) dust)
Today's PM2.5 level is: 15 (Moderate) For comparison, the highest level of PM2.5 in London in the last 7 days was: 11 (Wednesday, August 26, 2026) and the lowest: 4 (Friday, August 21, 2026). The highest PM2.5 values were recorded: 26 (December 2016). The lowest level of particulate matter PM2.5 pollution occurs in month: September (6.9).

What is the level of PM10 today in London? (particulate matter (PM10) suspended dust)
The current level of particulate matter PM10 in London is: 18 (Good) The highest PM10 values usually occur in month: 37 (December 2016). The lowest value of particulate matter PM10 pollution in London is usually recorded in: February (16).

How is the O3 level today in London? (ozone (O3))
70 (Moderate)

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

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

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



Current data Thursday, August 27, 2026 at 2:00 AM

PM2,5 15 (Moderate)

PM10 18 (Good)

O3 70 (Moderate)

NO2 16 (Good)

SO2 1 (Good)

CO 198 (Good)

Data on air pollution from recent days in London

index 2026-08-27 2026-08-26 2026-08-25 2026-08-24 2026-08-23 2026-08-22 2026-08-21 2026-08-20
pm25 7
Good
11
Good
9
Good
6
Good
7
Good
6
Good
4
Good
4
Good
pm10 10
Good
16
Good
16
Good
11
Good
11
Good
10
Good
8
Good
8
Good
o3 66
Good
69
Good
85
Moderate
74
Moderate
62
Good
62
Good
57
Good
49
Good
no2 17
Good
22
Good
12
Good
12
Good
19
Good
9
Good
9
Good
11
Good
so2 1
Good
2
Good
1
Good
1
Good
1
Good
1
Good
1
Good
1
Good
co 176
Good
199
Good
182
Good
181
Good
199
Good
174
Good
166
Good
153
Good
data source »
Air pollution in London from August 2015 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 2016-01 2015-12 2015-11 2015-10 2015-09 2015-08
no2 20 (Good) 27 (Good) 35 (Good) 39 (Good) 44 (Moderate) 45 (Moderate) 49 (Moderate) 42 (Moderate) 38 (Good) 37 (Good) 41 (Moderate) 42 (Moderate) 43 (Moderate) 44 (Moderate) 47 (Moderate) 58 (Moderate) 58 (Moderate) 57 (Moderate) 54 (Moderate) 60 (Moderate) 60 (Moderate) 48 (Moderate) 61 (Moderate) 53 (Moderate) 69 (Moderate) 60 (Moderate) 59 (Moderate) 55 (Moderate) 57 (Moderate) 52 (Moderate) 61 (Moderate) 55 (Moderate) 54 (Moderate) 58 (Moderate) 55 (Moderate) 53 (Moderate) 51 (Moderate) 56 (Moderate) 55 (Moderate) 56 (Moderate) 69 (Moderate) 70 (Moderate) 62 (Moderate) 60 (Moderate) 59 (Moderate) 56 (Moderate) 49 (Moderate) 61 (Moderate) 62 (Moderate) 68 (Moderate) 63 (Moderate) 64 (Moderate) 66 (Moderate) 61 (Moderate) 55 (Moderate) 72 (Moderate) 63 (Moderate) 52 (Moderate)
pm25 10 (Good) 15 (Moderate) 8.8 (Good) 6.9 (Good) 11 (Good) 11 (Good) 12 (Good) 9 (Good) 6.9 (Good) 10 (Good) 8.1 (Good) 9.7 (Good) 13 (Good) 24 (Moderate) 13 (Moderate) 23 (Moderate) 15 (Moderate) 13 (Moderate) 17 (Moderate) 12 (Good) 10 (Good) 13 (Good) 15 (Moderate) 14 (Moderate) 18 (Moderate) 18 (Moderate) 17 (Moderate) 14 (Moderate) 13 (Moderate) 13 (Moderate) 16 (Moderate) 14 (Moderate) 15 (Moderate) 14 (Moderate) 12 (Good) 14 (Moderate) 16 (Moderate) 16 (Moderate) 16 (Moderate) 21 (Moderate) 26 (Moderate) 26 (Moderate) 14 (Moderate) 14 (Moderate) 14 (Moderate) 13 (Good) 11 (Good) 14 (Moderate) 17 (Moderate) 13 (Moderate) 19 (Moderate) 13 (Moderate) 11 (Good) 14 (Moderate) 14 (Moderate) 19 (Moderate) 12 (Good) 13 (Moderate)
pm10 18 (Good) 23 (Moderate) 17 (Good) 16 (Good) 19 (Good) 18 (Good) 20 (Good) 17 (Good) 16 (Good) 20 (Moderate) 17 (Good) 18 (Good) 19 (Good) 32 (Moderate) 21 (Moderate) 32 (Moderate) 23 (Moderate) 20 (Moderate) 25 (Moderate) 20 (Good) 18 (Good) 16 (Good) 22 (Moderate) 21 (Moderate) 27 (Moderate) 26 (Moderate) 26 (Moderate) 22 (Moderate) 20 (Good) 20 (Good) 24 (Moderate) 20 (Moderate) 18 (Good) 20 (Good) 17 (Good) 20 (Good) 23 (Moderate) 23 (Moderate) 23 (Moderate) 29 (Moderate) 34 (Moderate) 37 (Moderate) 22 (Moderate) 21 (Moderate) 22 (Moderate) 19 (Good) 17 (Good) 19 (Good) 25 (Moderate) 21 (Moderate) 26 (Moderate) 24 (Moderate) 18 (Good) 25 (Moderate) 25 (Moderate) 27 (Moderate) 16 (Good) 18 (Good)
o3 63 (Good) 54 (Good) 37 (Good) 23 (Good) 15 (Good) 13 (Good) 11 (Good) 15 (Good) 19 (Good) 22 (Good) 26 (Good) 23 (Good) 31 (Good) 36 (Good) 25 (Good) 15 (Good) 20 (Good) 11 (Good) 10 (Good) 17 (Good) 16 (Good) 14 (Good) 30 (Good) 32 (Good) 35 (Good) 24 (Good) 22 (Good) 24 (Good) 17 (Good) 16 (Good) 14 (Good) 16 (Good) 21 (Good) 22 (Good) 23 (Good) 26 (Good) 28 (Good) 30 (Good) 19 (Good) 15 (Good) 14 (Good) 4.8 (Good) 11 (Good) 16 (Good) 11 (Good) 17 (Good) 7.7 (Good) 19 (Good) 36 (Good) 24 (Good) 21 (Good) 16 (Good) 13 (Good) 16 (Good) 13 (Good) 12 (Good) 15 (Good) 18 (Good)
so2 1.2 (Good) 2.6 (Good) 4.6 (Good) 5.1 (Good) 5.1 (Good) 5.1 (Good) 6.6 (Good) 5.7 (Good) 8.5 (Good) 5.2 (Good) 3.2 (Good) 5.3 (Good) 3.9 (Good) 3.9 (Good) 5.1 (Good) 7.2 (Good) 5.1 (Good) 7.1 (Good) 6.8 (Good) 6.4 (Good) 8.6 (Good) 6.7 (Good) 6.3 (Good) 4.3 (Good) 4.9 (Good) 6.4 (Good) 7 (Good) 7.1 (Good) 11 (Good) 9.2 (Good) 9.4 (Good) 8.7 (Good) 7.5 (Good) 6.9 (Good) 6.8 (Good) 7.6 (Good) 6 (Good) 5.5 (Good) 7.3 (Good) 8.5 (Good) 12 (Good) 11 (Good) 9.6 (Good) 7.7 (Good) 8.2 (Good) 8 (Good) 8.8 (Good) 8.6 (Good) 6.9 (Good) 8.3 (Good) 6.6 (Good) - (Good) - (Good) - (Good) - (Good) - (Good) - (Good) - (Good)
data source »

Quality of life in London

Green and Parks in the City

London 62%

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

Pleasure of spending time in the city

London 40%

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

Air Pollution

London 63%

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

Garbage Disposal

London 54%

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

Availability and quality of drinking water

London 53%

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

Cleanliness and tidiness

London 41%

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

Noise and Light pollution

London 68%

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

Water Pollution

London 58%

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

particulate matter PM2.5

London 12 (Good)

particulate matter PM10

London 23 (Moderate)

Source: Numbeo


London

Thursday, August 27, 2026 at 2:00 AM

PM2,5 15 (Moderate)

particulate matter (PM2.5) dust

PM10 18 (Good)

particulate matter (PM10) suspended dust

O3 70 (Moderate)

ozone (O3)

NO2 16 (Good)

nitrogen dioxide (NO2)

SO2 1.2 (Good)

sulfur dioxide (SO2)

CO 198 (Good)

carbon monoxide (CO)

London

index 2026-08-20 2026-08-21 2026-08-22 2026-08-23 2026-08-24 2026-08-25 2026-08-26 2026-08-27
pm25 3.7 4.1 5.6 7.4 6.3 9.1 11 7.1
pm10 7.6 7.6 9.6 11 11 16 16 10
o3 49 57 62 62 74 85 69 66
no2 11 9.3 9.1 19 12 12 22 17
so2 0.67 0.9 0.77 1.2 0.91 1.3 1.6 1
co 153 166 174 199 181 182 199 176

Camden Kerbside

2015-08   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 2016-01 2015-12 2015-11 2015-10 2015-09 2015-08
pm10 19 23 17 15 18 17 20 16 16 19 15 14 18 32 19 29 22 18 23 18 16 13 21 20 27 23 25 22 18 17 20 18 17 19 16 18 23 22 20 26 36 34 19 20 19 16 13 17 24 18 25 21 13 20 20 23 17 17
pm25 11 15 9.2 6.7 10 9.7 12 8.4 6.5 9.2 7.5 8.2 9.8 22 10 19 13 11 14 9 6.6 13 13 13 19 18 18 15 13 13 17 14 15 14 12 14 17 17 16 21 28 26 14 14 13 12 9.9 14 17 12 19 13 8.3 11 10 18 12 12
no2 21 26 29 31 42 40 49 37 35 34 35 33 41 39 30 47 52 45 44 46 37 38 51 49 56 44 43 42 44 33 54 37 40 44 41 42 50 54 43 53 78 70 63 59 53 47 42 61 64 66 58 56 52 36 48 75 66 51

London Marylebone Road

2015-08   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 2016-01 2015-12 2015-11 2015-10 2015-09 2015-08
pm25 9 14 8.5 7.1 12 12 13 9.6 7.2 11 8.7 11 16 26 17 27 16 16 19 15 14 13 16 14 18 18 17 13 13 13 16 14 14 14 12 14 15 15 16 22 25 27 15 14 15 13 13 14 16 14 19 14 13 16 18 21 13 15
no2 24 30 50 60 61 64 64 61 56 57 61 70 57 60 73 80 65 80 77 87 94 77 95 76 96 102 84 75 83 79 81 84 84 87 83 82 72 63 82 78 84 92 87 71 82 81 66 79 74 89 80 85 79 86 82 90 72 72
pm10 16 22 17 17 19 19 20 18 17 22 19 21 20 32 24 34 23 23 27 22 20 19 23 21 27 28 27 23 22 22 27 23 20 20 19 22 23 23 26 32 33 40 25 23 25 23 20 21 26 23 28 27 23 30 29 31 15 20
o3 63 54 37 23 15 13 11 15 19 22 26 23 31 36 25 15 20 11 10 17 16 14 30 32 35 24 22 24 17 16 14 16 21 22 23 26 28 30 19 15 14 4.8 11 16 11 17 7.7 19 36 24 21 16 13 16 13 12 15 18
so2 1.2 2.6 4.6 5.1 5.1 5.1 6.6 5.7 8.5 5.2 3.2 5.3 3.9 3.9 5.1 7.2 5.1 7.1 6.8 6.4 8.6 6.7 6.3 4.3 4.9 6.4 7 7.1 11 9.2 9.4 8.7 7.5 6.9 6.8 7.6 6 5.5 7.3 8.5 12 11 9.6 7.7 8.2 8 8.8 8.6 6.9 8.3 6.6 - - - - - - -

Tower Hamlets 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 2015-11 2015-10 2015-09 2015-08
no2 16 25 26 26 30 33 36 29 25 20 26 23 31 34 37 48 58 47 42 49 50 31 36 35 54 35 50 48 43 46 49 44 39 42 40 34 32 51 39 38 46 50 38 50 42 41 40 43 49 50 52 50 36 51 50 32

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

🌦️ Weather · 16-day Forecast — London

🌦️ WEATHER · 16-DAY FORECASTLondon🌤️23°Partly cloudyToday · ↑24° ↓12°💨 6 km/h · 💧 44%Mon24.08🌤️24°12°Tue25.08🌧️26°15°Wed26.08🌧️29°17°Thu27.08🌧️26°16°Fri28.08🌤️25°16°Sat29.08🌧️21°17°Sun30.08🌧️23°16°Mon31.08🌧️19°14°Tue1.09☁️23°15°Wed2.09🌧️23°16°Thu3.09☁️28°19°Fri4.09🌧️28°18°Sat5.09🌧️22°17°Sun6.09☁️22°14°Mon7.09🌤️26°14°Tue8.09☁️24°16°pollution-alert.com · August 27, 2026

16-day weather forecast for London: today around 24°C (partly cloudy), lows near 12°C. Daily temperature and conditions, updated every day. Strong wind (about 23 km/h) is actively clearing smog and dust away.

☀️ UV Index · 16-day Forecast — London

☀️ UV INDEX · 16-DAY FORECASTLondon03681111+3.9UV MODERATEtoday, day maxSeek shade around midday. SPF 30+, sunglasses and ahat for longer stays.⏱ Unprotected fair skin can burn in about 50 min4Wed26.083Thu27.085Fri28.084Sat29.085Sun30.085Mon31.084Tue1.093Wed2.093Thu3.095Fri4.095Sat5.091Sun6.095Mon7.094Tue8.094Wed9.095Thu10.090-2 low3-5 moderate6-7 high8-10 very high11+ extremepollution-alert.com · August 27, 2026

The UV index in London today is 3.9 (moderate) — unprotected fair skin can burn in about 50 minutes.

📍 Air quality in nearby cities

Live PM2.5 around London — compare nearby locations.

Frequently asked questions

Is the air safe to breathe in London today?
The current average PM2.5 across London is about 15 µg/m³, rated “Moderate”. Air quality is acceptable, but unusually sensitive people should limit prolonged outdoor exertion.
What is the current PM2.5 level in London?
Right now PM2.5 in London averages about 15 µg/m³ (“Moderate”). PM2.5 are fine particles small enough to reach the lungs and bloodstream.
Which day last week had the worst air in London?
Over the past week, the highest daily PM2.5 in London was recorded on Wednesday, August 26 (about 11 µg/m³).
What is the UV index in London today?
The UV index in London today is 3.9 (moderate) — unprotected fair skin can burn in about 50 minutes.
Does today's wind help disperse smog in London?
Strong wind (about 23 km/h) is actively clearing smog and dust away.
How is air quality measured?
Air quality here is based on PM2.5 — the concentration of fine particulate matter in µg/m³. Lower values mean cleaner air. Data is updated daily from Open-Meteo.