London

Highest levels of carbon monoxide found in areas encompassing Great Ormond Street Hospital, Ladbroke Grove and parts of the West End

Norman Foster-designed building is rated 'outstanding' under BREEAM criteria with ultra low water, energy and resource consumption

London's £10 levy on the most polluting cars highlights how bold regulation can help stimulate new markets

From today the dirtiest cars will have to pay an extra £10 to enter London's city centre, giving the capital the toughest emissions standard in the world

#SewSpooky campaign launched to encourage families and students to pass old costumes to others instead of throwing them away after just one wear

Ahead of T-Charge introduction, Mayor's Office launches new online service to help motorists assess their real world emissions

Authorities plan to drive air pollution down to 'near background levels' by 2035 under radical new air quality plans

Jace Tyrrell argues that for the New West End Company cleaner air is critical for the shopping hub's long term competitiveness

All areas of London exceed recommended limits for air pollutants according to "sickening" new data from Mayor's office

Mayor claims new powers needed to tackle the 50 per cent of London air pollution that is not generated by road transport