Countries failing air quality targets could save 9 million lives

illuminem summarises for you the essential news of the day, reviewed by our editorial team. Read the full piece on Euronews or enjoy below:

🗞️ Driving the news: Meeting the World Health Organization’s air quality guidelines could prevent an estimated 9.4 million deaths annually from exposure to fine particulate matter (PM2.5), according to a new University of Cambridge study
• Reducing nitrogen dioxide (NO₂) pollution to recommended levels could prevent or delay another 1.1 million deaths, highlighting the enormous health benefits of cleaner air as world leaders gather at COP31

🔭 The context: The WHO's 2021 guidelines lowered the recommended annual PM2.5 limit from 10 to 5 micrograms per cubic metre and the NO₂ limit from 40 to 10
• However across 136 countries studied, average PM2.5 concentrations reached 30.44 micrograms per cubic metre, more than six times the recommended threshold
• Low- and middle-income countries face particularly severe exposure as urbanisation, motorisation and economic development increase pollution

🌍 Why it matters for the planet: Air pollution is a major environmental threat, contributing to cardiovascular and respiratory diseases as well as dementia
• Tackling it can deliver a double benefit: protecting public health while supporting cleaner transport, urban development and more sustainable energy systems

⏭️ What’s next: Governments need stronger air-quality policies to reduce emissions and bring pollution levels closer to WHO recommendations, particularly in rapidly growing cities
• The study also strengthens the economic case for action, showing that cleaner air can reduce healthcare costs, preserve workforce productivity and generate substantial societal benefits

📈 One stat: Meeting WHO PM2.5 guidelines could generate an estimated Int$8.4 trillion in annual societal welfare gains across the 136 countries studied, equivalent to 10.7% of their combined GDP

Subscribe to our free newsletters to never miss a beat in sustainability.

The world needs sustainability knowledge. At illuminem, no interest group or shareholder can influence our work. Thank you for supporting our mission to make high-quality and independent sustainability information free for all. Every contribution helps. Thank you for donating today.