Overview

• Independent monitoring shows a steady improvement in Paris and Île-de-France air quality over two decades, with fine particles down 55% and nitrogen dioxide down 50% since 2005.
• Airparif attributes more than half of Paris’s 2012–2022 emissions reductions to targeted measures that modernized the vehicle fleet, reduced road traffic, and curbed non-traffic sources such as heating and industry.
• The agency estimates that 55% of the decline in urban nitrogen dioxide concentrations stems from the renewal of the vehicle fleet.
• Road-traffic carbon dioxide emissions in Paris fell by about 35% over the past ten years.
• Air pollution–attributable premature deaths have decreased by roughly one-third, yet significant health impacts persist and meeting World Health Organization 2030 targets still requires further policy effort.