The most beautiful April day
When the spring flowers are blooming
Fly ҉ floc ҉ and ҉ double ҉ 叒 ҉ 叕 ҉ is coming ҉ ҉ ҉ ҉ ҉ ҉ ҉ ҉ ҉ ҉ ҉ ҉ ҉ ҉ ҉ ҉ ҉ ҉ ҉
Every year in April and May
The north of the mainland will usher in a sky full of willow flying catkins
On April 7, it was released by the Beijing Municipality
This year's first willow fly-to-fly forecast
Netizens in many places said:
I'm starting to feel itchy through the screen!
Where do willow flyings come from?
When is your favorite haunt?
How to defend yourself when you go out?
Let's take a look
Where do flying flotsams come from?
Fly flocculent is the seed and derivative of the female plant of the willow tree. After pollination, the female plant of willow produces small fruits one by one, which are wrapped in white flocculent fluff, and the fluff hides the size of sesame grains, and the skin gradually splits after the grain matures, and the white flocculent fluff carries the seeds to scatter with the wind, forming the phenomenon of "willow flying flocculent".
The floc that appears in the south is the sycamore flocculent. Sycamore catkins appear twice a year: once in early March and April, when the young leaves of the sycamore grow, there will be a layer of fluffy things on the back of the leaves, when the temperature reaches more than 20 °C, the young leaves grow rapidly, and the hairs will fall off, that is, the buds are coated, and the other is the fruit floc when the fruit is ripe at the turn of spring and summer in mid-May. The weather conditions for the flying sycamore catkins are that the temperature remains above 25°C and the wind speed is 3 to 4.
What is the peak time of flying flotsam?
The peak time for flying is from 10 a.m. to 4 p.m. daily.
In North China, the first to start fluttering was poplar. For Populus alba, generally only the average daily temperature is higher than 0 °C, which is the effective temperature for its growth and development. When these temperatures above 0°C are added up, when the sum reaches 480°C and the average daily temperature reaches 14°C, the fruit of Populus melanosus is ready to ripen and burst.
When the maximum temperature during the day in spring exceeds 25 °C for three consecutive days, the relative humidity is below 70%, the weather is sunny and there is a certain amount of wind, it is most conducive to the fluttering of flying flotsam, generally 10 o'clock to 16 o'clock is the high incidence period of flying flotsam.
How to protect people who are prone to allergies?
People with allergies should pay attention to the health problems caused by catkins. Do not rub your eyes, fly into the eyes, do not rub with your hands, this will scratch the conjunctiva of the eye; do not scratch the skin hard, willow catkins cause skin itching, scratching the skin hard only produces some pain to cover the itching, the pain disappears often can not stop the itching, if the skin is scratched and easy to infect.
How to do a good job of protection?
Keep away from allergens. Appropriately reduce outdoor activities, rarely go to places with flying flotsam, and avoid traveling during high-incidence periods.
01
02
Take precautions. Use protective masks and glasses, and change clothes and take a shower in time when you go home.
Maintain environmental hygiene. For the clothes, curtains, floors, etc. at home, it is necessary to wash and wipe them frequently to reduce the accumulation of flying flotsam.
03
04
Eat a balanced diet. Eat more vegetables and fruits, supplement vitamins appropriately, avoid alcohol, and strengthen exercise.
Willow catkins flying in the sky
Not only for people with allergies
And there is a big fire hazard!
The case of "igniting catkins and causing a fire".
It happens almost every year
Some people have even been injured or sentenced for it
Related Cases
On May 1, 2017, 60-year-old Wu in Fangshan District, Beijing, burned poplar catkins with fire in the process of cleaning the yard, igniting the surrounding combustibles, and burning part of the factory building of a nearby musical instrument factory, musical instruments and other items. In 2018, the Fangshan Court convicted Wu of the crime of arson in accordance with the law, sentenced him to 2 years in prison, and compensated more than 1.28 million yuan.
On April 8, 2021, a fire broke out in a foam profile processing workshop in Botou City, Cangzhou, Hebei Province. According to the on-site investigation of the fire department, the cause of the fire was caused by the ignition of the surrounding foam profiles when the employees were cleaning up the catkins by ignition, but fortunately there were no casualties.
May 2022, Jinan, Shandong. A man who was allergic to poplar catkins ignited the catkins in a fit of rage, and the fire spread rapidly, destroying two private cars and a number of scrapped vehicles. During the examination, the man confessed to the crime of arson and was subject to criminal coercive measures.
Willow catkins are rich in oil
Exposed to air in combination with oxygen
In case of open flame, it will ignite immediately and spread instantly
If it is not controlled in time
It is very easy to cause "fire and camp"
Don't leave anything to chance
Take precautions!
Inner Mongolia Daily WeChat comprehensive collation from: China Meteorological Administration, China Emergency Management, China Weather Network, CCTV News