The impacts of air pollution are a growing concern for health organizations and climate regulators. The pandemic prompted some countries to prioritize finding ways to alleviate and prevent air pollution, including encouraging people to wear face masks. Vitale said exposure to negative ions could increase serotonin levels in the brain, which would help alleviate stress, anxiety, and depression, as well as improve sleep quality. At the same time, the UV light shines on the nanoparticle catalyst, which causes a reaction that releases negative ions. Trahms said the device emitted a constant stream of millions of negative ions, which bind to pollutants — or agglomerate — rather than destroy them.

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Persons: —, Jay Vitale, COVID, Vitale, there's, Christiaan Trahms, Trahms, Nicola Carslaw Organizations: Service, World Health Organization, Air, National Library of Medicine, King's, AA, Food and Drug Administration, University of York Locations: Milton Keynes, South Africa, London