Air quality in Rouen, France, has shown significant improvement since 2018, with nitrogen dioxide emissions dropping from 53 micrograms per cubic meter to under 30 by 2024, according to local authorities. This reduction is notable in the context of ongoing global climate change challenges.
Nicolas Mayer-Rossignol, president of the Métropole, expressed cautious optimism during a press conference, citing that nitrogen dioxide, primarily emitted by vehicle pollution, is a crucial indicator of air quality. Atmo Normandie, the organization monitoring air quality, highlighted that these pollutants can lead to severe health issues such as asthma and cardiovascular diseases.
To monitor pollution levels, sensors have been installed near traffic hotspots in Rouen. Data indicates a consistent decline in nitrogen dioxide levels, attributed to various factors, including favorable weather conditions and structural changes in transportation policies. National and local initiatives promoting public transport and cycling have also contributed to this positive trend.
However, experts warn that significant efforts are still needed to meet European air quality standards, which may soon become stricter. The vice-president of the Métropole emphasized the need to shift away from car dependency, promoting public transport and cycling as sustainable alternatives.
This development in Rouen reflects broader trends seen in other urban areas, suggesting a potential shift in air quality management amid global environmental challenges.