Are there many catkins in Laishan, Yantai?

Are there many? Catkin, the seeds of willow, has white fluff on it, dancing with the wind, like floating catkin, so it is called catkin. Willow: tree height 18m, crown evacuation. Bark is grayish black and irregularly cracked; The branches are thin, drooping and hairless. Bud linear, apex acute. The leaves are narrowly lanceolate, 9 to 16 cm long and 0.5 to10.5 cm wide, with tapered tips, wedge-shaped bases and serrated edges; Petiole 5- 10 mm long, pubescent; Stipules only grow on budding branches.

Meteorologists say that dryness, high temperature, abundant sunshine, low humidity and certain wind speed are all 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.

Generally speaking, similar to pollen, the most common allergic reactions caused by catkin are itchy skin and redness of conjunctiva, which can cause edema in severe cases, such as red eye and red lips. Catkin inhaled into the nasal cavity can cause strong irritation, runny nose, cough and asthma, which seriously affects the quality of sleep. People with allergies may cause respiratory edema, and in severe cases, laryngeal edema may occur, which may lead to suffocation.

Attention should be paid 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 the event of allergies, we must pay attention to eat less spicy food, eat more fruits, and add a little anti-allergic vitamin C.