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Environmental associations warn about concerning levels of nitrogen dioxide in Portuguese cities
Science
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Environmental associations warn about concerning levels of nitrogen dioxide in Portuguese cities

SAPO Notícias7 September 2026 at 10:36

The environmental associations Zero and the Portuguese Council for Health and Environment warned this Monday about concerning levels of nitrogen dioxide (NO2) in Portuguese cities, taking advantage of the commemoration of International Clean Air Day. The organizations emphasized that NO2 is a critical pollutant in urban areas of the country. The article does not specify what the actual concentration levels recorded are or which cities are most affected. The alert comes in the context of a date dedicated internationally to raising awareness about air quality and its impacts on public health.

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