Air quality in your area Find out how we measure air quality to ensure it meets legal standards, where smoke control areas are located, and how you can help improve air quality. Bonfires Advice on bonfires and how to report nuisance smoke and smells. Chimney height approval Apply for chimney height approval for business furnaces or boilers. Burning commercial waste Find out how to legally dispose of commercial waste and how to report a business that is burning waste. Smoke control areas Find out if you live in a smoke control area. Those who do must only burn authorised fuel from a domestic chimney or use an exempt appliance.