International Day of Clean Air for Blue Skies 2026 – September 7

Key facts

• The International Day of Clean Air for Blue Skies is observed annually on September 7.
• The United Nations General Assembly designated September 7 as the International Day of Clean Air for Blue Skies through Resolution 74/212 in December 2019.
• The first observance of the day was held in 2020, with the United Nations Environment Programme (UNEP) facilitating the global observance.
• The day raises awareness about the health and environmental consequences of polluted air and encourages governments, organisations and communities to work towards cleaner air.
• India's National Clean Air Programme (NCAP) provides a framework for improving air quality through city-level action, monitoring, public awareness and pollution-reduction measures.
• The UN describes air pollution as a major environmental health risk, particularly affecting children, older people and those exposed to high pollution levels over prolonged periods.
• Many sources of air pollution are linked to greenhouse-gas emissions, so cleaner energy can benefit both air quality and climate action.