Stoke-on-Trent received the highest number of complaints about bad smells in the UK in the last year, according to new figures.
A total of 860 residents complained to the city council, while Birmingham came in second place with 649 complaints.
Three London boroughs, Westminster, Bexley and Kensington & Chelsea also appear in the top 10 in the study by specialist firm Airmatic based on freedom of information requests.
It says businesses are continuing to consider the impact they make on the environment and how bad smells can affect people’s physical and mental health.
Claire Watson of Airmatic said: ‘Odour complaints are a direct result of air pollution in an area.
‘This can have a negative effect on the health and wellbeing of the residents in such areas with them breathing in air pollutants.
‘These can enter our bloodstream and contribute to coughing or itchy eyes and cause or worsen many respiratory conditions.
‘Aside from the physical health impacts, there are also the negative mental effects on residents living day to day exposed to such odours.’