Heathrow is to publicly rank the 50 busiest airlines using the airport on their work to reduce emissions and noise.
A quarterly league table will be published showing a red/amber/green rating for seven noise and emissions criteria.
Heathrow will “engage” with airlines showing red results to improve their rating.
The chart will also include a new metric tracking unscheduled airline operations between 11.30pm at night and 4.30am in the morning as part of efforts to trim the number of aircraft operating at night.
The first ‘Fly Quiet and Clean’ league table, based on data from January to March, reveals British Airways’ short haul, Aer Lingus and Etihad Airways as the cleanest and quietest fleets at the airport.
Sustainability director Matt Gorman said: “While the main contributor to local pollution remains road traffic, Heathrow is playing its part to improve air quality by reducing emissions from its vehicles, buildings and aircraft.
“We are excited to add a whole new dimension to the league table and have another tool to help airlines to reduce their impact on air quality.
“Together, we can play our part to improve our local environment and help the UK and London governments meet their air quality targets.”