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July 2, 2025 5 mins

Did you know that the air you breathe can harm your brain, and increase your risk for dementia, anxiety and depression ? Nine out of 10 people around the world breathe air that does not meet WHO’s recommended air quality standards. Air pollution kills 7 million people every year. What are  cities like London, Bogotá and Beijing doing to clean their air?  Dr Maria Neira explains in Science in 5.

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