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Spring blossoms, the most beautiful April day
However, the troubles of "April Flying Snow" also followed
At present, Xi'an has entered the flutter season
What are the effects of flying feathers on the human body?
How to protect people who are prone to allergies when traveling?
Today Qu Xiaowei wants to talk to you
Willow flying small science
As the temperature gradually increases
The coziness of spring is soon "disturbed" by the flying feathers
Where did Willow Flying Feather come from?
Willow flying is a natural phenomenon of willow seed propagation and breeding offspring. Willow wool is the seed of poplar and willow trees, with white fluff. Willow trees are divided into male and female plants, the flowers of the female plants mature and bear fruit, the fruit is wrapped in white hair, and when it matures, the skin of the fruit will gradually split, and the white flocculent fluff carries the seeds to fly with the wind, expanding the family, forming the phenomenon of "willow flying feathers".
There are different kinds of flying feathers every year. In North China, the first to start fluttering was the white poplar. Poplar trees are also divided into "male and female", and poplar is the seed of the female plant, when the average temperature of the day reaches 14 ° C, the fruit of the poplar is conditionally ripe and explodes, and the older the tree, the more fly feathers are produced. In the south, sycamore wool is the "protagonist" in the flying feather, generally the temperature is maintained above 25 ° C on the day, and the wind speed reaches 3-4 levels, the plane feather will be produced.
The flying feathers in the sky look beautiful
But it is a "spring specialty" that many people don't like very much.
The fluttering willows also hide many hazards
What are the hazards of flying feathers?
Although the flying feather itself is not toxic, but because of the light texture, often with the wind or rise or fall or drift, when the willow fluttering, it will bring up dirt and dust on the ground, thus affecting the air quality. At the same time, it is easy for flying feathers to become carriers and spreaders of germs, resulting in inflammation of human eyes, nose and throat. If it causes skin allergies, small rashes, peeling, redness and itching, chronic bronchitis and other respiratory diseases. In particular, children, the elderly and patients with respiratory diseases often react particularly strongly to Yang Shu and need to be particularly strictly guarded against.
Symptoms of the reaction of the flying fibrillation allergy
Contact allergies can cause skin redness, itching, papules, purpura, etc. Inhaled allergens are easy to cause allergic asthma and allergic rhinitis, and the clinical manifestations are continuous sneezing, runny nose, cough, wheezing, etc.
Govern the willow flying feathers, Qu Jiang did so!
At present, there are willow and poplar trees in Yanzhan Road, Huixin Road, Gongtian 3rd Road, Yannan 4th Road, Qujiangchi Ruins Park, Tangcheng Wall Relics Park and other areas under the jurisdiction of Qujiang New Area. Generally speaking, April and early May are the high incidence periods from 10:00 a.m. to 16:00 p.m. People with allergies try to avoid going out during this time period. If you must go out, try to choose the morning, evening, or after the rain when there are fewer willows.
The governance of Willow Fly is a gradual process. According to Qujiang staff, "our district will comprehensively carry out the mapping and rectification of willow flying feathers in the jurisdiction every year, and minimize the impact of flying feathers on the environment and citizens' lives by pruning and combing branches, inhibiting chemical injection, high-pressure water spraying, fog cannon truck spraying and other symptoms and root causes." ”
The Flying Feather Protection Guide is here!
Ahead hair ҉ hair ҉ warning
This flying feather protection guide
Please put it away
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Part of the source: People's Daily
Edited by: Sisi
Proofreader: Vincent
Preliminary: Yuanyuan
Final Judgment: Qin Plough
Produced by Rong Media Center of Qujiang New District, Xi'an