Environment monitoring & reporting

Corporate Environment Plan

The Corporate Environment Plan underpins the environment pillar in our sustainability approach by detailing our ambition and targets for improving our environmental performance. Key performance metrics used to document our work to date will help us monitor progress on our strategies, commitments and priorities.

Vehicle emissions

We have tested the emissions performance of Euro 6/VI vehicles in urban environments.

This report presents the results from these tests, alongside a summary of the legislative and technical framework for Euro 6/VI vehicle emissions standards.

Air quality on the Tube

The movement of trains over the rails, engineering works and customer use all contribute dust to the Tube network.

Dust on the Tube is different to dust found above ground. We're committed to maintaining the cleanest air possible for our staff and customers when using the Tube.

To do this we're funding more research to understand the potential health impacts of Tube dust, continuing to improve our monitoring programme, rolling out enhanced tunnel-cleaning regimes across the network and exploring the latest innovations to tackle this issue.

We compare the levels of dust on the network to the safe levels set by the Health and Safety Executive (HSE). The monitoring shows that dust levels are well below the HSE workplace exposure limits for general dust. We also meet the stricter requirements of the Institute of Occupational Medicine in most places.

Our monitoring reports

A further report - including station and on-train monitoring from 2023 - will be available here later in 2023.