Why is the air in Tianjin so dry every day?

The weather is fine. Recently, citizens have felt the fine weather in autumn. According to yesterday afternoon's weather forecast, the highest temperature in Tianjin will remain at about 2 1℃ today, the sky will turn sunny and cloudy, and the northwest wind will be 3-4, which is still a good weather. It's just that the air will be dry today, and the minimum relative humidity during the day is only 20%.

Autumn is a relatively low humidity stage in a year, especially in such fine weather, the air is drier. Generally speaking, the suitable healthy humidity for human body is 45%—

65%, and now the relative humidity during the day has dropped to 20%. In this environment, the evaporation of water from human skin mucosa is accelerated, and there will be symptoms such as dry skin, dry nose, dry lips, sore throat and headache, which makes people feel very uncomfortable. Therefore, I remind everyone that the weather is dry recently, so we should pay attention to hydration. First, humidify the environment. For example, use a humidifier, put a basin and wet towel in the room to moisturize the skin, pay attention to drink more water, and don't wait until you are thirsty.