What are the white floating objects like cotton in the air in spring?

According to the different tree species planted locally, it can be divided into poplar catkins and catkins.

1, catkin, that is, the seeds of willow, with white fluff on it, dancing in the wind like catkin, so it is called catkin. The weather with dry, high temperature, abundant sunshine, low humidity and certain wind speed is easy to cause catkins to drift. On sunny days, 10 in the morning to 16 in the afternoon is the high incidence of catkin flying.

In the morning and evening, with the decrease of temperature and wind, catkin flying decreases. Catkin is flying all over the sky, which is the high incidence of various allergic symptoms.

2. Flocculation is a normal growth and reproduction phenomenon of poplar. Poplar is a dioecious plant. Only when poplar is pollinated, it will produce so-called white flocs, which not only affects the environment, but also has human health problems. Generally speaking, the older a tree is, the more flying flocs it produces.

Extended data

1, methods for controlling catkins

Only by adjusting the structure of tree species can poplar catkins be eliminated fundamentally. In view of this, Anhui Province is promoting local tree species suitable for planting, such as Sophora japonica, Paulownia, Catalpa bungeana, Sophora japonica and Ginkgo biloba. "Increasing the seedling cultivation and afforestation of native tree species can improve the present situation of single tree species in plain areas, thus inhibiting catkins.

2, should pay attention to in daily life:

1, go out as little as possible in windy days and try to avoid places with birds. In case of going out, wear a mask to cover your mouth and nose. After returning to China, it is necessary to clean the exposed skin in time and clean the nasal cavity if possible; Change clothes when you enter the room, and don't bring home the allergens from outside.

2. It is not recommended to open the window for a long time during the flight season. You can use more air purifiers to filter impurities in the air, including flying flocs.

3. If cotton wool enters the eyes, it must not be rubbed by hand, but washed with clean tap water or wiped with a sterile cotton swab.

4. In case of allergy, you must pay attention to eat less spicy food, eat more fruits, and add some anti-allergic vitamin C. If the condition has not been effectively alleviated, you must go to the hospital for treatment.

Baidu Encyclopedia-Yang Xu

Baidu encyclopedia-catkin