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

Latest air quality data: Leicester
Pollution and air quality forecast for Leicester. Today is Thursday, August 27, 2026. The following air pollution values have been recorded for Leicester:
  1. particulate matter (PM2.5) dust - 18 (Moderate)
  2. particulate matter (PM10) suspended dust - 21 (Moderate)
  3. ozone (O3) - 73 (Moderate)
  4. nitrogen dioxide (NO2) - 8 (Good)
  5. sulfur dioxide (SO2) - 2 (Good)
  6. carbon monoxide (CO) - 183 (Good)
Real-time Air Quality Index (AQI) for Leicester, Thursday, August 27, 2026: 2.

air quality index: 1
AQI 2 Moderate

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

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


What is the current level of PM2.5 in Leicester? (particulate matter (PM2.5) dust)
Today's PM2.5 level is: 18 (Moderate) For comparison, the highest level of PM2.5 in Leicester in the last 7 days was: 11 (Thursday, August 27, 2026) and the lowest: 4 (Friday, August 21, 2026). The highest PM2.5 values were recorded: 21 (February 2016). The lowest level of particulate matter PM2.5 pollution occurs in month: July (6.1).

What is the level of PM10 today in Leicester? (particulate matter (PM10) suspended dust)
The current level of particulate matter PM10 in Leicester is: 21 (Moderate) The highest PM10 values usually occur in month: 36 (February 2019). The lowest value of particulate matter PM10 pollution in Leicester is usually recorded in: June (15).

How is the O3 level today in Leicester? (ozone (O3))
73 (Moderate)

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

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

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



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

PM2,5 18 (Moderate)

PM10 21 (Moderate)

O3 73 (Moderate)

NO2 8 (Good)

SO2 2 (Good)

CO 183 (Good)

Data on air pollution from recent days in Leicester

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 11
Good
10
Good
6
Good
5
Good
8
Good
6
Good
4
Good
4
Good
pm10 14
Good
14
Good
11
Good
8
Good
12
Good
11
Good
8
Good
7
Good
o3 69
Good
78
Moderate
80
Moderate
69
Good
61
Good
57
Good
52
Good
45
Good
no2 11
Good
8
Good
4
Good
5
Good
9
Good
8
Good
9
Good
9
Good
so2 1
Good
1
Good
1
Good
1
Good
1
Good
1
Good
1
Good
1
Good
co 184
Good
181
Good
162
Good
173
Good
195
Good
176
Good
169
Good
152
Good
data source »
Air pollution in Leicester 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 19 (Good) 17 (Good) 26 (Good) 28 (Good) 35 (Good) 36 (Good) 38 (Good) 31 (Good) 26 (Good) 25 (Good) 23 (Good) 23 (Good) 27 (Good) 20 (Good) 29 (Good) 40 (Moderate) 42 (Moderate) 38 (Good) 31 (Good) 33 (Good) 30 (Good) 27 (Good) 23 (Good) 19 (Good) 26 (Good) 27 (Good) 31 (Good) 33 (Good) 36 (Good) 39 (Good) 43 (Moderate) 28 (Good) 29 (Good) 30 (Good) 24 (Good) 23 (Good) 24 (Good) 35 (Good) 31 (Good) 34 (Good) 43 (Moderate) 43 (Moderate) 42 (Moderate) 33 (Good) 29 (Good) 23 (Good) 22 (Good) 28 (Good) 26 (Good) 30 (Good) 36 (Good) 44 (Moderate)
pm10 15 (Good) 20 (Good) 16 (Good) 15 (Good) 17 (Good) 19 (Good) 22 (Moderate) 19 (Good) 19 (Good) 19 (Good) 18 (Good) 15 (Good) 22 (Moderate) 29 (Moderate) 26 (Moderate) 36 (Moderate) 29 (Moderate) 22 (Moderate) 26 (Moderate) 22 (Moderate) 19 (Good) 16 (Good) 21 (Moderate) 21 (Moderate) 27 (Moderate) 24 (Moderate) 27 (Moderate) 21 (Moderate) 20 (Moderate) 18 (Good) 25 (Moderate) 19 (Good) 20 (Moderate) 19 (Good) 18 (Good) 22 (Moderate) 22 (Moderate) 25 (Moderate) 21 (Moderate) 26 (Moderate) 28 (Moderate) 31 (Moderate) 22 (Moderate) 19 (Good) 20 (Moderate) 17 (Good) 15 (Good) 19 (Good) 22 (Moderate) 21 (Moderate) 28 (Moderate) 28 (Moderate)
o3 59 (Good) 66 (Good) 53 (Good) 47 (Good) 35 (Good) 31 (Good) 23 (Good) 30 (Good) 34 (Good) 45 (Good) 41 (Good) 46 (Good) 51 (Good) 66 (Good) 51 (Good) 32 (Good) 28 (Good) 31 (Good) 31 (Good) 33 (Good) 35 (Good) 29 (Good) 58 (Good) 54 (Good) 65 (Good) 57 (Good) 48 (Good) 41 (Good) 34 (Good) 29 (Good) 24 (Good) 33 (Good) 31 (Good) 34 (Good) 40 (Good) 45 (Good) 53 (Good) 50 (Good) 45 (Good) 38 (Good) 23 (Good) 18 (Good) 23 (Good) 26 (Good) 28 (Good) 38 (Good) 35 (Good) 40 (Good) 56 (Good) 50 (Good) 41 (Good) 35 (Good)
pm25 8.1 (Good) 10 (Good) 8.2 (Good) 6.6 (Good) 8.6 (Good) 8.7 (Good) 15 (Moderate) 8.8 (Good) 7.5 (Good) 9.4 (Good) 8.8 (Good) 9 (Good) 11 (Good) 19 (Moderate) 12 (Good) 15 (Moderate) 14 (Moderate) 9.3 (Good) 14 (Moderate) 9.1 (Good) 7.4 (Good) 6.5 (Good) 9.5 (Good) 9.5 (Good) 15 (Moderate) 12 (Good) 14 (Moderate) 9.1 (Good) 9.7 (Good) 8.6 (Good) 13 (Moderate) 7.9 (Good) 10 (Good) 7.7 (Good) 7.4 (Good) 8.1 (Good) 10 (Good) 11 (Good) 10 (Good) 16 (Moderate) 19 (Moderate) 18 (Moderate) 11 (Good) 9.1 (Good) 11 (Good) 7.5 (Good) 6.1 (Good) 9.4 (Good) 12 (Good) 9.2 (Good) 15 (Moderate) 21 (Moderate)
data source »

Quality of life in Leicester

Green and Parks in the City

Leicester 65%

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

particulate matter PM2.5

Leicester 12 (Good)

Pleasure of spending time in the city

Leicester 74%

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

particulate matter PM10

Leicester 22 (Moderate)

Air Pollution

Leicester 29%

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

Garbage Disposal

Leicester 57%

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

Availability and quality of drinking water

Leicester 82%

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

Cleanliness and tidiness

Leicester 58%

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

Noise and Light pollution

Leicester 47%

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

Water Pollution

Leicester 25%

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


Leicester

Thursday, August 27, 2026 at 2:00 AM

PM2,5 18 (Moderate)

particulate matter (PM2.5) dust

PM10 21 (Moderate)

particulate matter (PM10) suspended dust

O3 73 (Moderate)

ozone (O3)

NO2 7.7 (Good)

nitrogen dioxide (NO2)

SO2 1.7 (Good)

sulfur dioxide (SO2)

CO 183 (Good)

carbon monoxide (CO)

Leicester

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 4 4.4 6.3 8.4 5.3 6.2 9.7 11
pm10 7.4 8.4 11 12 8 11 14 14
o3 45 52 57 61 69 80 78 69
no2 9.2 8.5 8.5 8.9 4.8 3.9 7.9 11
so2 0.6 0.72 0.72 0.82 0.6 0.52 1.1 0.82
co 152 169 176 195 173 162 181 184

Leicester A594 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 18 23 19 19 20 19 22 19 19 19 18 15 22 29 26 36 29 22 26 22 19 16 21 21 27 24 27 21 20 18 25 19 20 19 18 22 22 25 21 26 28 31 22 19 20 17 15 19 22 21 28 28
no2 20 19 29 33 41 43 44 36 31 32 28 28 33 20 35 47 49 47 36 39 37 34 30 23 31 35 35 37 41 44 49 33 35 37 30 28 28 44 35 38 48 46 47 37 33 26 27 32 27 36 38 43

Leicester University

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
no2 18 15 22 22 28 30 31 27 21 17 17 18 22 20 24 34 35 28 25 27 23 21 16 15 20 20 26 29 30 33 37 24 22 23 18 18 21 27 26 31 39 40 37 30 26 19 18 23 25 25 34 46
o3 59 66 53 47 35 31 23 30 34 45 41 46 51 66 51 32 28 31 31 33 35 29 58 54 65 57 48 41 34 29 24 33 31 34 40 45 53 50 45 38 23 18 23 26 28 38 35 40 56 50 41 35
pm25 8.1 10 8.2 6.6 8.6 8.7 15 8.8 7.5 9.4 8.8 9 11 19 12 15 14 9.3 14 9.1 7.4 6.5 9.5 9.5 15 12 14 9.1 9.7 8.6 13 7.9 10 7.7 7.4 8.1 10 11 10 16 19 18 11 9.1 11 7.5 6.1 9.4 12 9.2 15 21
pm10 12 16 14 11 14 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

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

🌦️ Weather · 16-day Forecast — United Kingdom

🌦️ WEATHER · 16-DAY FORECASTUnited Kingdom🌤️20°Partly cloudyToday · ↑21° ↓9°💨 4 km/h · 💧 56%Mon24.08🌤️21°Tue25.08☁️20°Wed26.08☁️21°14°Thu27.08☁️23°14°Fri28.08🌧️21°12°Sat29.08🌧️15°12°Sun30.08🌧️18°12°Mon31.08🌧️16°Tue1.09🌧️15°Wed2.09🌧️16°14°Thu3.09🌧️18°13°Fri4.09☁️16°Sat5.09🌧️15°Sun6.09☁️16°Mon7.09🌧️16°12°Tue8.09🌧️15°11°pollution-alert.com · August 27, 2026

16-day weather forecast for United Kingdom: today around 21°C (partly cloudy), lows near 9°C. Daily temperature and conditions, updated every day. A moderate breeze (about 14 km/h) is partially dispersing pollutants today.

☀️ UV Index · 16-day Forecast — United Kingdom

☀️ UV INDEX · 16-DAY FORECASTUnited Kingdom03681111+2.9UV LOWtoday, day maxYou can safely stay in the sun. Sunscreen only matterson very long exposure.3Wed26.083Thu27.081Fri28.083Sat29.085Sun30.084Mon31.084Tue1.094Wed2.091Thu3.091Fri4.094Sat5.091Sun6.092Mon7.092Tue8.091Wed9.094Thu10.090-2 low3-5 moderate6-7 high8-10 very high11+ extremepollution-alert.com · August 27, 2026

The UV index in United Kingdom today is 2.9 (low).

📍 Air quality in nearby cities

Live PM2.5 around Leicester — compare nearby locations.

Frequently asked questions

Is the air safe to breathe in Leicester today?
The current average PM2.5 across Leicester is about 18 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 Leicester?
Right now PM2.5 in Leicester averages about 18 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 Leicester?
Over the past week, the highest daily PM2.5 in Leicester was recorded on Thursday, August 27 (about 11 µg/m³).
What is the UV index in Leicester today?
The UV index in Leicester today is 2.9 (low).
Does today's wind help disperse smog in Leicester?
A moderate breeze (about 14 km/h) is partially dispersing pollutants today.
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.