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Latest air quality summary
Number of monitoring sites in each pollution band
Heathrow Airwatch was last updated at 08:00 on Saturday 27th July 2024
- Low20
- Moderate0
- High0
- Very High0
- No Data2
- 22
Total monitoring sites
![Green](http://www.heathrowairwatch.org.uk/images/map_legend_1-3.jpg)
![Orange](http://www.heathrowairwatch.org.uk/images/map_legend_4-6.jpg)
![Red](http://www.heathrowairwatch.org.uk/images/map_legend_7-9.jpg)
![Purple](http://www.heathrowairwatch.org.uk/images/map_legend_10.jpg)
![Grey](http://www.heathrowairwatch.org.uk/images/map_legend_0.jpg)
Slough Town Centre Wellington Street
Parameter | Pollution Band | Concentration | Period |
---|---|---|---|
Oxides of Nitrogen (NOXasNO2) Updated: 24/07/2024 10:00 |
No Data | hourly mean | |
Nitrogen dioxide (NO2) Updated: 24/07/2024 10:00 |
No Data | hourly mean | |
Nitric Oxide (NO) Updated: 24/07/2024 10:00 |
No Data | hourly mean |
Note: These results are based on provisional data. The data are presented in graphical form based on the highest pollutant measured at each site.