City-of-london Air Pollution: Real-time Air Quality Index (AQI)

Westminster - Oxford Street
London Marylebone Road
London
Camden Kerbside
Islington - Holloway Road
Wandsworth - Battersea
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Westminster - Oxford Street AQI: Westminster - Oxford Street Real-time Air Quality Index (AQI).
139
Unhealthy
for Sensitive Groups
Updated on Wed. 7:00
temperature: 4°C
currentpast 2 daysminmax
PM2.5 AQI
139Westminster - Oxford Street, United Kingdom PM25 (fine particulate matter) measured by : • UK-AIR, air quality information resource - Defra, UK • London Air Quality Network - Environmental Research Group, King s College London. Values are converted to the US EPA AQI standard.61153
NO2 AQI
24Westminster - Oxford Street, United Kingdom NO2 (nitrogen dioxide) measured by : • UK-AIR, air quality information resource - Defra, UK • London Air Quality Network - Environmental Research Group, King s College London. Values are converted to the US EPA AQI standard.1542
Weather Information
Temp.
4Westminster - Oxford Street, United Kingdom t (temp.) measured by Citizen Weather Observer Program (CWOP/APRS).-112
Pressure
1025Westminster - Oxford Street, United Kingdom p (pressure:) measured by Citizen Weather Observer Program (CWOP/APRS).10241032
Humidity
82Westminster - Oxford Street, United Kingdom h (humidity) measured by Citizen Weather Observer Program (CWOP/APRS).3893
Wind
4Westminster - Oxford Street, United Kingdom w (wind) measured by Citizen Weather Observer Program (CWOP/APRS).05
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map © OpenStreetMap contributors

Air Quality Forecast
WED 5
14°C
4°C
THU 6
14°C
6°C
FRI 7
14°C
10°C
SAT 8
15°C
9°C
SUN 9
15°C
9°C
PM2.5
O3
Wednesday 5Thursday 6Friday 7Saturday 8Sunday 9
hour
036912151821036912151821036912151821036912151821036912151821
Wind Speed (m/s)
3334544333467677666665444456665555667654








































Temp.
5°4°4°9°13°13°10°8°7°7°6°11°14°13°12°11°11°11°11°11°14°14°11°10°10°9°9°12°15°14°12°11°10°9°9°13°15°13°11°11°
relative humidity
75726755454669697180885954616778818584826160747469757661485262707679785850628281
barometric pressure
1024102310231023102210201020102010191017101610151014101310131013101210121012101410131012101210121011101010091009100710061006100610051004100310041002100210031004
total precipitation
0.10.10.10.1


6:40 ~ 17:46


6:38 ~ 17:48


6:36 ~ 17:50


6:34 ~ 17:52


6:31 ~ 17:53
Forecast plotted using timezone +00:00
Latest forecast updates:
Wind: 2 hours ago [Mar 5, 2025 6:34 AM]
fine particulate matter: 6 hours ago [Mar 5, 2025 3:01 AM]
ozone: 6 hours ago [Mar 5, 2025 3:02 AM]
click to view the detailed forecast

Air Quality Data provided by: UK-AIR, air quality information resource - Defra, UK (uk-air.defra.gov.uk) and London Air Quality Network - Environmental Research Group, King's College London (londonair.org.uk)

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About the Air Quality and Pollution Measurement:

About the Air Quality Levels

AQIAir Pollution LevelHealth ImplicationsCautionary Statement (for PM2.5)
0 - 50GoodAir quality is considered satisfactory, and air pollution poses little or no riskNone
51 -100ModerateAir quality is acceptable; however, for some pollutants there may be a moderate health concern for a very small number of people who are unusually sensitive to air pollution.Active children and adults, and people with respiratory disease, such as asthma, should limit prolonged outdoor exertion.
101-150Unhealthy for Sensitive GroupsMembers of sensitive groups may experience health effects. The general public is not likely to be affected.Active children and adults, and people with respiratory disease, such as asthma, should limit prolonged outdoor exertion.
151-200UnhealthyEveryone may begin to experience health effects; members of sensitive groups may experience more serious health effectsActive children and adults, and people with respiratory disease, such as asthma, should avoid prolonged outdoor exertion; everyone else, especially children, should limit prolonged outdoor exertion
201-300Very UnhealthyHealth warnings of emergency conditions. The entire population is more likely to be affected.Active children and adults, and people with respiratory disease, such as asthma, should avoid all outdoor exertion; everyone else, especially children, should limit outdoor exertion.
300+HazardousHealth alert: everyone may experience more serious health effectsEveryone should avoid all outdoor exertion

To know more about Air Quality and Pollution, check the wikipedia Air Quality topic or the airnow guide to Air Quality and Your Health.

For very useful health advices of Beijing Doctor Richard Saint Cyr MD, check www.myhealthbeijing.com blog.


Usage Notice: All the Air Quality data are unvalidated at the time of publication, and due to quality assurance these data may be amended, without notice, at any time. The World Air Quality Index project has exercised all reasonable skill and care in compiling the contents of this information and under no circumstances will the World Air Quality Index project team or its agents be liable in contract, tort or otherwise for any loss, injury or damage arising directly or indirectly from the supply of this data.



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