How serious is the smog in Beijing today?

The haze weather in Beijing is very serious. If you travel, it will do harm to your respiratory system. In foggy weather, PM2.5 has seriously exceeded the standard, and the air is full of black particles. As the capital of our country, both economic politics and cultural legal system are the primary goals of our country. Therefore, many people are eager to go to Beijing, hoping to work hard in Beijing to create their own world. Because of this, the population of Beijing is also increasing. However, the population is increasing, but the environment in Beijing is getting worse. In the past two years, I have been seeing news reports about how bad the environment in Beijing is, especially in foggy days. When there is fog in Beijing, it seems to be in a fairyland. Standing on a tall building and looking down, I can't see anything but gray. Before going out, people are fully armed to buy all kinds of high-tech "masks". It is the rhythm of not wearing a mask and not going out.

I remember that the smoggy days that impressed Beijing the most were seen in news reports. The whole city is wrapped in yellow sand, and nothing can be seen clearly, let alone traffic. At that time, many people in Weibo complained that there was yellow sand everywhere. It is conceivable how serious the pollution in Beijing is and how bad the smog weather in Beijing is. Judging from Beijing, the pollution situation in several surrounding provinces and cities is also very serious. The environmental pollution of several cities in Hebei ranks among the best in the country, and the situation in Tianjin is not much better. Environmental pollution in Beijing, Tianjin and Hebei has always been a big problem, and it really needs to be solved urgently.

During the Spring, Autumn and Winter Festival, the smog days in Beijing frequently threaten the lives of people in Beijing, Tianjin and Hebei. Therefore, relevant departments and individuals should increase their efforts to make the environment in our capital fresher and give the next generation of children a blue sky and white clouds. ...