Which underground line is the most polluted in London?

The Central Line is one of the most polluted underground lines in London according to research by the Financial Times.

The investigation measured fine particles – known as PM2.5 – which can penetrate into the lungs and have been linked to heart disease, stroke, lung cancer and respiratory infection.

Air in carriages on sections of the Central Line was 8 times above safe limits recommended by the World Health Organisation.

Other lines in the top 10 of the most polluted include the Northern, the Victoria, the Jubilee and the Bakerloo.

“Fine particles of dust, metal, skin and clothing fibre have built up in the tunnels over a century of use, leaving a toxic miasma that is stirred up by passing trains and inhaled by passengers,” according to the article by Camilla Hodgson, Leslie Hook and Steven Bernard.

Jenny Bates, an air pollution campaigner at Friends of the Earth, told the FT: “These are shocking, worrying findings. We know particulates are the most dangerous of the air pollutants. We must sort out this terrible level of bad aor. It’s absolutely essential for the health of anyone using the Tube.”

Read the full investigation by the Financial Times here.

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