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AIR QUALITY DATA SOURCE
Find out more about contributors and data sourcesIndex | High | ||
Tree pollen | High | ||
Grass pollen | Low | ||
Weed pollen | None |
Weather | Clear sky |
Temperature | 50°F |
Humidity | 92% |
Wind | 6.9 mp/h |
Pressure | 30.2 Hg |
# | city | US AQI |
---|---|---|
1 | Iver, England | 78 |
2 | Luton, England | 78 |
3 | Cambridge, England | 73 |
4 | Canary Wharf, England | 69 |
5 | Battersea, England | 68 |
6 | Brentford, England | 68 |
7 | Erith, England | 68 |
8 | Greenhill, England | 68 |
9 | Rainham, England | 68 |
10 | Reading, England | 68 |
(local time)
SEE WORLD AQI RANKINGUS AQI
67*
live AQI index
Moderate
Air pollution level | Air quality index | Main pollutant |
---|---|---|
Moderate | 67* US AQI | PM2.5 |
Pollutants | Concentration | |
---|---|---|
PM2.5 | 17.7*µg/m³ |
PM2.5
x3.5
PM2.5 concentration in Harefield is currently 3.5 times the WHO annual air quality guideline value
Sensitive groups should reduce outdoor exercise | |
Close your windows to avoid dirty outdoor air GET A MONITOR | |
Sensitive groups should wear a mask outdoors GET A MASK | |
Sensitive groups should run an air purifier GET AN AIR PURIFIER |
Day | Pollution level | Weather | Temperature | Wind |
---|---|---|---|---|
Today | Moderate 67 AQI US | 20% | 66.2° 50° | 4.5 mp/h |
Friday, May 10 | Moderate 74 AQI US | 68° 51.8° | 6.7 mp/h | |
Saturday, May 11 | Moderate 78 AQI US | 69.8° 50° | 8.9 mp/h | |
Sunday, May 12 | Moderate 65 AQI US | 100% | 69.8° 53.6° | 8.9 mp/h |
Monday, May 13 | Good 42 AQI US | 100% | 60.8° 50° | 15.7 mp/h |
Tuesday, May 14 | Good 8 AQI US | 60% | 59° 48.2° | 15.7 mp/h |
Wednesday, May 15 | Good 13 AQI US | 80% | 59° 44.6° | 8.9 mp/h |
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