We monitor air quality to protect and inform the community
We currently use diffusion tubes to monitor NO2 at 29 strategically placed locations across the borough. They are distributed on a monthly basis and returned to a laboratory for analysis. Please refer to our locations map.
We are part of the Hertfordshire and Bedfordshire Air Pollution Monitoring Network and our monitoring data can be found on the Hertfordshire & Bedfordshire Air Quality website.
The air quality in Welwyn Hatfield is currently good and we are working hard to try and maintain this.
Air pollution alerts
You can sign up to an alert service which sends you a text or email when levels of air pollution in your area increase to a moderate level or above. The alerts are sent out before moderate, high, or very high levels of air pollution are forecast.
It's free to sign up and enables you to find out when air pollution is at elevated levels in the area in which you live, work, or travel. The service is provided by our partners, Ricardo Energy and Environment.
*You will be redirected to the Hertfordshire and Bedfordshire Air Pollution Monitoring Network's website.