All regions of mainland Portugal will continue, at least until Thursday, with very high concentrations of pollen in the atmosphere, according to the pollen bulletin published by the Portuguese Society of Allergology and Clinical Immunology (SPAIC).
According to the SPAIC, very high concentrations of pollen in the atmosphere are expected in all regions of the continent and low levels for the archipelagos of the Azores and Madeira.
“It should be noted that at this time of the year, in almost the whole country, pollen grains with high allergenic power are present in the air at significant levels, such as those of grass, pellitory, plantain and lamb’s quarters and olive.
According to forecasts, until Thursday, May 26 in the Lisbon and Setúbal region, pollen from olive and oak trees, grasses, parietaria, plantain and lamb’s quarters will predominate.
In Porto (between the Douro and the Minho region), the pollen of the oaks and olive trees, and the herbaceous herbs, parietaria, plantain and nettles stand out.
In the region of Trás-os-Montes and Alto Douro, pollen comes mainly from oaks, pines and olive trees, and from grasses, parietaria, sorrel and plantain.
In Coimbra (Beira Litoral region) there is a predominance of pollen from olive and oak trees, grasses and grasses of nettles and parietaria.
In the Beira Interior region, the pollen of oak, olive and pine trees, herbaceous weeds, plantain and parietaria stands out.
In the Alentejo region, pollen is abundant from olive and cork oaks and from grasses, plantains and parietaria.
In the Algarve region, the pollens of olive and oak trees and grasses, plantain and lamb’s-quarters dominate.
According to SPAIC, outdoor activities should be avoided when pollen concentrations are high.
“Walking in the garden, mowing the lawn, camping or playing outdoor sports will increase your exposure to pollens and your risk of allergies.”