Get a monitor and contributor to air quality data in your city.
Air Quality 
Air Monitors
Air Purifiers
For Business
News
Support
Air quality in Greenhill
Air quality index (AQI) and PM2.5 air pollution in Greenhill
1.6K people follow this city
Greenhill Air Quality Map
Real-time Greenhill air pollution map
AIR QUALITY DATA CONTRIBUTORS
Breathe London
See all
Pollen
What is the pollen count in Greenhill today?
 | Index | Low | |
 | Tree pollen | Low | |
 | Grass pollen | None | |
 | Weed pollen | None |
Source: tomorrow.io
Weather
What is the current weather in Greenhill?
| Weather | Broken clouds |
| Temperature | 59°F |
| Humidity | 86% |
| Wind | 9.2 mp/h |
| Pressure | 29.7 Hg |
live aqi city ranking
Real-time United Kingdom city ranking
| # | city | US AQI |
|---|---|---|
| 1 | Luton, England | 107 |
| 2 | Scunthorpe, England | 105 |
| 3 | Hayes, England | 90 |
| 4 | Cheltenham, England | 89 |
| 5 | Bedford, England | 86 |
| 6 | Birmingham, England | 85 |
| 7 | London, England | 85 |
| 8 | Reading, England | 84 |
| 9 | Cambridge, England | 77 |
| 10 | Oxford, England | 77 |
(local time)
SEE WORLD AQI RANKING
3D animated air pollution map
live Greenhill aqi ranking
Real-time Greenhill air quality ranking
| # | station | US AQI |
|---|---|---|
| 1 | St.Luke's Hospice | 70 |
| 2 | High Street Wealdstone | 68 |
| 3 | St Jerome Bilingual School, Station Road | 68 |
(local time)
SEE WORLD AQI RANKING
US AQI
68
live AQI index
Moderate
Overview
What is the current air quality in Greenhill?
| Air pollution level | Air quality index | Main pollutant |
|---|---|---|
| Moderate | 68 US AQI | PM2.5 |
| Pollutants | Concentration | |
|---|---|---|
| PM2.5 | 20µg/m³ | |
| NO2 | 62µg/m³ | |
!
PM2.5
x4
PM2.5 concentration in Greenhill is currently 4 times the WHO annual air quality guideline value
Health Recommendations
What is the current air quality in Greenhill?
 | 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 |
Forecast
Greenhill air quality index (AQI) forecast
| Day | Pollution level | Weather | Temperature | Wind |
|---|---|---|---|---|
| Monday, Apr 29 | Good 27 AQI US  | | 57.2° 39.2° |  15.7 mp/h |
| Tuesday, Apr 30 | Good 21 AQI US |  | 62.6° 44.6° | 13.4 mp/h |
| Wednesday, May 1 | Good 48 AQI US | | 64.4° 48.2° | 8.9 mp/h |
| Today | Moderate 68 AQI US | 90% | 59° 48.2° | 11.2 mp/h |
| Friday, May 3 | Good 15 AQI US | 70% | 50° 46.4° | 11.2 mp/h |
| Saturday, May 4 | Good 25 AQI US | 50% | 60.8° 42.8° | 6.7 mp/h |
| Sunday, May 5 | Good 29 AQI US | 30% | 60.8° 46.4° | 6.7 mp/h |
| Monday, May 6 | Good 36 AQI US | 90% | 60.8° 50° | 4.5 mp/h |
| Tuesday, May 7 | Moderate 57 AQI US | 40% | 62.6° 48.2° | 8.9 mp/h |
| Wednesday, May 8 | Moderate 60 AQI US | | 66.2° 48.2° | 4.5 mp/h |
Interested in hourly forecast? Get the app
News
The latest air quality news and resources.
How to best protect from air pollution?
Greenhill air quality data attribution
1Contributor
- Breathe London
3 stations
Non-profit organization Contributor
Where is the cleanest air quality in Greenhill?
AQI US, Metric