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A high-pressure system settled over Europe at the start of March 2025, influencing air quality across the continent. The weather conditions, which created stable atmospheric patterns, also led to elevated nitrogen dioxide (NO2) levels in certain regions.

The image on the right, captured by the Copernicus Sentinel-5P satellite on March 3, 2025, shows these elevated NO2 concentrations, particularly over parts of Belgium, France, the United Kingdom, Italy, Germany, the Netherlands, the Czech Republic, Austria, and Slovakia.

Image: Air quality patterns over parts of Europe (s. pollution)
Europe. Credit: European Union, Copernicus Sentinel-3 and Copernicus Sentinel-5P imagery

In contrast, the image on the left, taken by the Copernicus Sentinel-3 mission, presents a natural-color view of Europe under clear skies — typical for high-pressure systems. Snow-covered peaks of the Alps are visible, with much of northern and central Europe remaining free of clouds, offering optimal conditions for land monitoring.

These images, taken with Copernicus satellites, are essential for monitoring air quality trends across Europe and the world, highlighting the significance of satellite data in environmental observation.

Featured image credit: European Union, Copernicus Sentinel-3 and Copernicus Sentinel-5P imagery

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