Air pollution is the biggest environmental health risk of our time. Over 99 per cent of people breathe unsafe air.

Exposure can lead to stroke, heart and lung diseases, cancer and more. Polluted air kills 6.7 million people per year, and 2.4 billion people are exposed to dangerous levels of household air pollution.

Air pollution is transboundary – all stakeholders have a responsibility to protect the earth’s atmosphere and ensure healthy air for everyone. Working together, across borders and boundaries, between sectors and beyond silos, will help reduce air pollution, leverage finance and investments towards air quality measures and solutions, and provide health benefits.


This International Day of Clean Air for blue skies, we call upon everyone, from governments and corporations to civil society and individuals to come #TogetherForCleanAir.

#WorldCleanAirDay / #togetherforcleanair
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Nairobi, 7 September 2023 – The world today marked the fourth International Day of Clean Air for blue skies with calls to build multistakeholder…

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UNEP and its partners in Latin America and the Caribbean are working together to monitor and tackle air pollution.

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UNEP Executive Director Inger Andersen calls upon all stakeholders to tackle air pollution.

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Learn more about the air pollution problem, the importance of clean air and the value of coming #TogetherForCleanAir ahead of International Day of…