Benefits
London has the worst air pollution in the United Kingdom and amongst the worst in Europe, adversely affecting the health and quality of life of many Londoners.
The Mayor of London has a legal obligation to take steps towards meeting national and European Union air quality objectives which are designed to protect human health.
In London, road transport is the single biggest source of Particulate Matter (PM10) and oxides of Nitrogen(NOX). These are the primary causes of air quality-related health problems, including worsening symptoms of asthma.
The LEZ aims to reduce traffic pollution by deterring the most polluting diesel-engined lorries, buses, coaches, minibuses and large vans from driving within the city. Reduced traffic pollution will improve the health and quality of life of people who live in, work in and visit London, especially those suffering from respiratory or cardiovascular illnesses that restrict their daily activities.
Transport for London