The Portuguese Environment Agency (APA) forecasts widespread poor air quality across the mainland, with more pronounced effects in the interior and northern regions.
The APA attributes this situation to a “progressive intrusion of air masses from North Africa” and additionally anticipates “high levels of tropospheric ozone,” especially in the interior, due to high temperatures and pollutant transport, namely from wildfires.
Suspended particle and ozone concentrations may exceed legislated limits in the most affected regions, resulting in medium to poor air quality indices across much of the mainland.
The APA also notes these pollutants impact human health, particularly affecting sensitive groups, such as children and the elderly, for whom additional precautions should be taken.
The Directorate-General for Health had already issued a warning on Wednesday, advising the public to avoid prolonged exertion, limit outdoor physical activities, and reduce exposure to risk factors like tobacco smoke and irritating substances.
Vulnerable groups and the general public, when feasible, should “stay indoors, preferably with windows closed,” particularly children, the elderly, and those with chronic respiratory conditions such as asthma and cardiovascular issues, according to the Directorate-General for Health (DGS).
For chronic patients, the DGS advises maintaining current medical treatments and, in case of symptom aggravation, contacting the Health Line 24 (808 24 24 24) or seeking healthcare services.
