Inhaled metal Tube dust can enter bloodstream, study finds

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Inhaled metal Tube dust can enter bloodstream, study finds
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High levels of maghemite were found in some air samples but it is not known if they are harmful.

The air in London's Tube network is polluted with metallic particles small enough to enter the human bloodstream, according to a study.

Samples were collected in 2019 and 2021 from stations including Oxford Circus, King's Cross St Pancras and Paddington.

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