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Poor air quality persists in areas with highest road trafficPhoto by jarmoluk on Pexels
Science

Poor air quality persists in areas with highest road traffic

Now7 September 2026 at 10:04

According to the Zero association and the Portuguese Council for Health and Environment, poor air quality persists in urban areas with the highest intensity of road traffic. The most recent definitive official data, relating to 2024, confirm that nitrogen dioxide (NO₂) continues to be a critical pollutant in these areas. This situation particularly affects urban areas where vehicle circulation is most intense. The two organizations warn of the need for measures that mitigate the population's exposure to this type of pollution.

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