What is the worst year of smog in Baoding?

20 17. Baoding, formerly known as Shanggu, Baozhou and Fu Bao, is also called Boot City because it is like a boot. It is located in the middle of Hebei Province, at the eastern foot of Taihang Mountain. It is the central city of Beijing-Tianjin-Hebei region and a part of China (Hebei) Pilot Free Trade Zone. According to the weather forecast, the smog in Baoding was the most serious on 20 17. Haze is a combination of fog and haze. Smog is very common in cities. Many areas in China combine fog and haze as a disastrous weather phenomenon for early warning and forecasting.