Smoke produced by bonfires contains minute particles of ash which can cause health problems when they are below 10 microns in size - the PM10 fraction.
For most people this is unlikely to have any effect but some people, particularly those with asthma or other respiratory diseases, may find their symptoms worsen.
On bonfire night there is an increase in the amount of PM10 in the air across the Borough. At the Pollution Control Section this is one of the pollutants that we measure at several locations.
For further information, please contact us: