The Directorate-General for Health (DGS) states that these particles "have effects on human health, especially on the most sensitive population, children and the elderly, whose health care must be monitored".

The DGS also emphasises that children, the elderly and patients with respiratory problems should, whenever possible, "remain inside buildings and, preferably, with the windows closed". In case of symptoms you should "contact Linha Saúde 24 (808 24 24 24) or contact a health service".

For this Friday, March 22nd, the Portuguese Institute of the Sea and Atmosphere (IPMA) predicts that temperatures will rise again, with maximum temperatures ranging between 30ºC in Leiria, Setubal and Braga, and 23ºC in Guarda. At the weekend, maximum temperatures across the country return to around 25ºC or even higher.