Be the first to measure and contribute air quality data to your community
Air Quality 
Air Monitors
Air Purifiers
For Business
News
Support
Air quality in Horley
Air quality index (AQI) and PM2.5 air pollution in Horley
4K people follow this city
Horley Air Quality Map
Real-time Horley air pollution map
AIR QUALITY DATA SOURCE
* AQI modeled using satellite data Learn more
Pollen
What is the pollen count in Horley today?
 | Index | Very high | |
 | Tree pollen | Very high | |
 | Grass pollen | Low | |
 | Weed pollen | None |
Source: tomorrow.io
Weather
What is the current weather in Horley?
| Weather | Clear sky |
| Temperature | 50°F |
| Humidity | 85% |
| Wind | 2.3 mp/h |
| Pressure | 29.7 Hg |
live aqi city ranking
Real-time United Kingdom city ranking
| # | city | US AQI |
|---|---|---|
| 1 |  Nottingham, England | 112 |
| 2 | Scunthorpe, England | 73 |
| 3 | Leeds, England | 71 |
| 4 | Pudsey, England | 70 |
| 5 | Wetherby, England | 67 |
| 6 | Bradford, England | 65 |
| 7 | Chorley, England | 64 |
| 8 | Edinburgh, Scotland | 62 |
| 9 | Grangemouth, Scotland | 62 |
| 10 | Motherwell, Scotland | 62 |
(local time)
SEE WORLD AQI RANKING
3D animated air pollution map
US AQI
54*
live AQI index
Moderate
Overview
What is the current air quality in Horley?
| Air pollution level | Air quality index | Main pollutant |
|---|---|---|
| Moderate | 54* US AQI | PM2.5 |
| Pollutants | Concentration | |
|---|---|---|
| PM2.5 | 10.5*µg/m³ | |
!
PM2.5
x2.1
PM2.5 concentration in Horley is currently 2.1 times the WHO annual air quality guideline value
Health Recommendations
What is the current air quality in Horley?
 | 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
Horley air quality index (AQI) forecast
| Day | Pollution level | Weather | Temperature | Wind |
|---|---|---|---|---|
| Today | Moderate 54 AQI US |  50% | 62.6° 48.2° |  4.5 mp/h |
| Saturday, May 18 | Moderate 56 AQI US | 90% | 64.4° 51.8° | 8.9 mp/h |
| Sunday, May 19 | Moderate 59 AQI US | 80% | 62.6° 46.4° | 11.2 mp/h |
| Monday, May 20 | Good 50 AQI US  | 20% | 60.8° 48.2° | 13.4 mp/h |
| Tuesday, May 21 | Moderate 54 AQI US | 60% | 60.8° 48.2° | 4.5 mp/h |
| Wednesday, May 22 | Moderate 65 AQI US | 90% | 60.8° 51.8° | 8.9 mp/h |
| Thursday, May 23 | Moderate 68 AQI US | 70% | 62.6° 46.4° | 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?
Where is the cleanest air quality in Horley?
No locations are available.
AQI US, Metric