The fourth national cold wave is coming, what protection should we do?

At the peak of national recovery, a powerful cold air has quietly come to the west of Xinjiang. The high-altitude weather map shows that there is a crimson line across Central Asia, which is the high-altitude trough corresponding to cold air. Influenced by the detachment it sent, Xinjiang has begun to cool down.

Next, this cold air will sweep across the country in five days, bringing the biggest cooling this year: from Heilongjiang to Hainan, from Tibet to Shanghai. The Central Meteorological Observatory has long judged it as a "cold wave" and issued an important weather warning, which was not handled in the last boss-level cold wave.

This also means that since 65438+February 2020, China will encounter four national cold waves in 45 days, and its high frequency and intensity are rare in the new century. There are so many cold waves, on the one hand, it is related to La Nina, which we have said many times before; On the other hand, it may also be related to climate extreme events under the background of global warming, which needs further study.

Compared with the previous cold wave, the intensity of the fourth cold wave itself is not strong, but due to the excessive preheating of the previous cold wave, the temperature drops sharply, which is equivalent to "steaming first and then ice", and it is easier to induce a cold than the previous cold wave.

A, cold wave defense guide:

1, personnel should pay attention to add clothes to keep warm; In production, we should be prepared to defend against strong winds and cool down;

2, doors and windows, coamings, scaffolding, temporary structures and other structures that are easily blown by strong winds are fastened, and outdoor items that are easily affected by strong winds are properly placed;

3. Take shelter from the wind and notify outdoor workers to pay attention to safety;

4. Pay attention to the latest information reported by the media about gale cooling, so as to take further measures;

5, transportation, public security and other departments should do a good job in preparing for road icing in accordance with their duties.

Second, at the same time, the weather turns cold, and the prevention and control of the epidemic situation cannot be sloppy.

① food

When entering the supermarket to buy food, you should wear a mask correctly and keep a social distance.

Wash your hands with soap or hand sanitizer in time after shopping. Don't touch your mouth, nose and eyes before washing your hands.

When buying frozen food, you can use disposable plastic bags to stop choosing. When buying packaged frozen/refrigerated food, you should pay attention to the production date, shelf life and storage conditions on the food label to ensure that it can be eaten within the shelf life.

Containers (pots), knives, chopping boards, etc. used for handling frozen and refrigerated foods should be placed separately and cleaned and disinfected in time.

Frozen chilled food should be stored in the freezer of the refrigerator, not for too long, and should be stored in layers with cooked food.

Cooking food should be thoroughly cooked. The principle is to keep 10 to 15 minutes after boiling.

Try to avoid seafood eaten raw, half-eaten, soaked in wine and vinegar or pickled directly.

Once you have symptoms of fever and diarrhea after eating, you should go to the fever clinic for medical treatment in time, and take the initiative to inform you of the eating time, food types and sources of ingredients.

② Going out.

When going out, you should carry a medical surgical mask with you;

When going to shopping malls, restaurants, cinemas, conference rooms, workshops and other crowded places, going to the hospital for treatment, and taking public transportation such as elevators, subways and buses, you should wear masks correctly;

It is recommended that the elderly, the infirm or patients with chronic diseases wear masks when they go out.

③ Enhance the awareness of epidemic prevention and control.

Enhance self-protection and awareness of health and civilization, and develop healthy lifestyle behaviors such as washing hands frequently, wearing masks, paying attention to hand hygiene, one-meter reading, opening windows for ventilation, cleaning and disinfection, eating separately, reducing going to crowded places when sick, and not spitting, covering your mouth and nose with paper towels when coughing or sneezing.

Once you have respiratory symptoms such as fever and cough, you should go to a nearby medical institution for medical treatment in time, try to avoid going out and put an end to going to work or school with illness.