Pollen warning! These areas are about to enter the peak season for allergies, please keep the protection guide

Spring is a season when everything comes back to life. However, behind the colorful scene, pollen allergies are also a problem. So why is spring a high-incidence season for pollen allergies? How can we deal with it scientifically and effectively?

As the temperature warms up, flowers bloom and pollen in the air becomes the number one "enemy" for people with allergies.

Pollen allergy, also known as hay fever, is a common spring allergic disease with symptoms including nasal congestion, runny nose, sneezing, red and swollen eyes, itching, coughing, etc., and may even trigger asthma. According to statistics, during the pollen transmission period, pollen allergy patients account for 32.3% of the total number of allergic people.

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Flowers in nature are divided into "insect-pollinated flowers" and "wind-pollinated flowers". "Insect-pollinated flowers" such as peach and apricot flowers are mainly spread by insects because their pollen particles are large, sticky, and heavy. They are not easily blown away by the wind and rarely cause allergic symptoms. However, the pollen of trees such as juniper, poplar, willow, and elm belongs to "wind-pollinated flowers". The pollen is light in weight and large in quantity. After being blown by the wind, it floats in the air in large quantities and is easy to cause allergies.

The degree of pollen allergy is closely related to pollen concentration, which is related to meteorological factors. In spring, sunny, low-humidity, and stable wind speed weather are most suitable for pollen transmission. The pollen allergy meteorological index developed by the Tianjin Meteorological Bureau is divided into four levels. Level 1 indicates the beginning of the pollen season, and those with a history of allergies are advised to prepare medicine; Levels 3 to 4 indicate the pollen outbreak period, and it is recommended to reduce outdoor activities and strengthen personal protection.

According to the national pollen forecast released by the China Meteorological Administration Public Meteorological Service Center this year:

Nationwide Cupressaceae Pollen Forecast

Forecast of the beginning of pollen bloom of weeping willows in China

Beijing, Tianjin, central Hebei, southwestern Inner Mongolia, central Shanxi, northern Shaanxi, northern Gansu and other places will enter the Cupressaceae pollen period; southern Hebei, southern Shandong, southern Shanxi, southern Shaanxi, southern Gansu, western Sichuan and other places will enter the weeping willow pollen period.

To effectively deal with pollen allergies, people with allergies can pay attention to the pollen allergy meteorological index released by the meteorological department and take precautions in advance. Wear a mask and goggles when going out; after returning home, change clothes, wash your face and hands in time to reduce the residue of pollen on the body; you can also use anti-allergic drugs or nasal sprays to relieve allergic symptoms. If the allergic symptoms significantly affect work and life, or are worse than before, you should seek medical attention in time.

Planning and production

Source: China Meteorological Administration

Editor: Wang Mengru

Proofread by Xu Lailinlin

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