Air quality in Waltham Forest Air pollution is a major public health issue. We monitor air quality in Waltham Forest, share results, and take action to reduce pollution and improve the local environment. Report pollution issues Report a problem with light nuisance, smoke, flooding or drainage issues. Environmental information regulations You can access a wide range of environmental information that we hold. Ultra Low Emission Zone (ULEZ) Parts of Waltham Forest are in ULEZ. Find out if you need to do anything.