Splendid days, sun shining, clear sky … yet, there are those who breathe full lungs and those who are doing a nice smog cocktail. The problem? The high pressure, which instead of giving us only happy escapes, is keeping the pollutants hostage, preventing the replacement of air. Copernicus satellite confirms it: Europe is surrounded by an invisible blanket of nitrogen dioxide (No₂)and the most industrialized cities are making the costs.
March 3, the satellite Sentinel-5p has recorded alarming concentrations of nitrogen dioxide (no₂)a harmful gas that is mainly formed by the combustion of fossil fuels. Satellite images show Red patches In the most polluted areas in Europe, in particular in the most industrialized and densely populated regions.
Map of the atmospheric hell: the most affected areas
The images captured by the satellite Sentinel-5p On March 3, 2025 they speak clearly: some areas of the continent seem to have won the award for the worst air quality. Here is the ranking of the places where it is better Not breathe too strong:
- Belgium and Netherlandswhich are practically a single toxic cloud that extends to the south of theEngland and to the Ruhr German.
- Germanywith worrying peaks in the border areas with France and around Berlin and Hamburg.
- France and Czech Republicwith Paris and Prague who shine in the firmament of pollution, while the rest of the two countries breathes much better.
- Italyand here comes the blow to the heart: the Po Valley is one of the most critical areas, with Milan that stands out in the middle of a red patch of fearextending from Piedmont to Veneto.
The red thread that unites all these areas? Industry, traffic and zero wind. In short, a nice explosive mix for our lungs.
Nitrogen dioxide: because it is dangerous for health
The nitrogen dioxide It is a highly toxic gas that is produced during the combustion of fossil fuels, especially in motor vehicles and industrial activities. Prolonged exposure can cause irritation in the respiratory tractworsen pre -existing pathologies such as Asma and chronic bronchitis and increase the risk of Cardiovascular diseases.
But the damage does not stop there. No₂ is also a precursor of other pollutants, such as the fine particulates (PM10 and PM2.5) and troposphere ozonewhich further aggravate the situation, making the air even more harmful to the population.
High pressure and smog: the perfect mix for air pollution
As confirmed by the images of the satellite Sentinel-3the weather situation of March 3 created the ideal conditions for the stagnation of pollutants. THE’high pressure stabilized the atmosphere, preventing the dispersion of the smog. Without wind and without rain to “clean” the air, the nitrogen dioxide has accumulated, making the air of the big cities even heavier and more dangerous to breathe.
With the arrival of spring and the persistence of these weather conditions, the problem of air pollution is likely to aggravate itself further. The solution of course It is not to stop breathingbut rather reduce emissions. Sustainable mobility, less cars, more public transport, more green spaces … all things we already know, but that evidently we still don’t do enough. In the meantime, those who live in the Po Valley (or in one of the red areas of the satellite) could think of having a mask … and no, we are not talking about the carnival one.
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