This article was first published in November 2019. We made minor changes to the text in March 2024.
  • Date (DD-MM-YYYY)

    22-07-2025 to 22-07-2026

    Available on-demand until 22nd July 2026

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    Free

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    Publication

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    On-demand

Outdoor air pollution is one of the world's largest health and environmental problems – one that tends to worsen for countries as they industrialize and transition from low to middle incomes.

The Global Burden of Disease study estimates that millions of deaths are attributed to outdoor air pollution.1

There is also growing evidence that long-term exposure to air pollution can have important impacts on other aspects of health and well-being – such as cognitive function.

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Our World in Data (OWID)

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Global Change Data Lab, Urbanoid Workspace, 1 &3 Kings Meadow, Oxford, Oxfordshire, OX2 0DP

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