What caused the weather in Beijing to be so bad in the last week or so? It is foggy every day.

The bricklayer said, what low pressure control. Clouds pile up. Causing the fog not to disperse.

Personally, I think that the air convection between Beijing urban area and surrounding suburbs is not smooth and there is no wind. Then Beijing still emits a lot of garbage, and there are more particles in the air. Line into a lasting fog.

Of course, the weather in Beijing is foggy, and it is not like this now. It's just that I've done a good job in the past two years. It's much more sunny. Now, it's normal to bounce back a little.

It has been cloudy for a week and will clear up next week. A rainstorm will improve everything.