We are in full spring and approaching the month of May. Or what is the same: the pollen season is thrown on us. Pollen is one of the main allergens and, in case this was not enough, The trend is growingthat is, more and more people suffer allergy to some type of pollen.
An intense season. The experts They foresee an intense pollen season This spring. Although the weeks with the highest incidence of allergens are usually in the months of May and June, the meteorology can cause the first sneeze to catch more than one by surprise.
Meteorology, an important factor. The rain is one of the most important factors When it comes to knowing whether or not they wait for us for days of sneezing. Primaveral rains can prevent the concentration of allergens in the environment, at least for a few days.
And if there has been something in recent days (and the last months) is rain. Although in recent weeks we have not seen episodes of torrential rains, the possibility of an important increase in the concentration of pollen in the environment has been limited by rainfall.
Looking back. However the relationship between moisture and pollen It is more complex that the simple “sweep” effect. The persistent rains of recent weeks may have protected us from early pollinators, but have also contributed to the accumulation of soil moisture and in the pollinating plants themselves.
As Physicist José Miguel Viñas explains in Meteoredspring rains, situations like this, in which a rebound of temperatures follows a pause in the rains, pollen levels tend to shoot.
The temperature another factor to take into account. And it is that the temperature is the other great determinant when providing the levels of allergens that will stalk us in the next few days and weeks. Many plants begin to wake up from their winter lethargy in the mid -winter and begin to accumulate energy. After a certain accumulation threshold, these plants can start the pollinating phase of their reproductive cycle.
First notices. Thus, this week you can mark the beginning of the season for many allergic. According to The data of the monitoring of the atmosphere of Copernicus, this week some allergens will already emerge in some areas of Spain, especially In the south and in the northwest of the Iberian Peninsula.
In the Peninsular South it will highlight the Olive Pollen. On Thursday and Friday in some areas of Andalusia we could see concentrations of more than 5,000 grains per m³ of this allergen. Throughout the week, concentrations of more than 100 grains/m³ will be common in the southern quadrant of the peninsula. The grass will be another allergen to take into account in the central and south, although with less important concentrations, below the 100 grains/m³.
During the week an increase in birch pollen concentrations is also expected in the center and north of the Iberian Peninsula. The presence of this pollen will be especially noticeable in the northwest, in Galicia and west of Asturias, with concentrations that would exceed 100 grains/m³. The incidence would be moderate in the north third and in areas of Castilla y León.
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Image | Copernicus
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