Smoke and pungent smell appeared at People's Square Station of Shanghai Metro during the Spring Festival. What happened?

I don't know exactly what happened, but something was lit in the flower bed at the gate of the station. Therefore, the smoke generated by combustion and broadcasting is discharged into the entrance of subway station along with the ventilation pipe. It also caused many people to smell pungent smell and see some smoke. This is only a small matter, so don't be too alarmed. As far as our current prevention efforts are concerned, it must be as fast as lightning and suppressed in time.

In other words, in a blink of an eye, it is a happy Spring Festival. In this festival, people eat and drink enough every day and enjoy the fruits of labor in the past year. Because of busy work, I may have to separate from my relatives and friends. In order to make a living, I stay up late and work overtime every day. But during the Spring Festival, you don't have to worry about these things at all. Whether you are happy to eat this today or that tomorrow. Friends meet and visit each other, which leads to a sharp increase in the flow of people, making the city's transportation system face a severe test. This man has many eyes and miscellaneous eyes. No matter who is in it, there will be some high-quality and low-quality people. In this case, it is very easy to have some safety accidents.

For example, in a subway station in Shanghai, there is a funny nose smell, which seems to be caused by something burning. It is undoubtedly scary to see smoke on the scene. Once a fire breaks out in a subway station, it will threaten the lives of thousands of people. So the resulting loss is quite amazing. But for this kind of thing that happens in the house, the fire fighting system of this subway station is generally very tough, with a large number of smoke detectors and nozzles installed. ? This is to nip in the bud, so as to nip in the bud. The smoke in the subway station did cause some smoke detectors to sound the alarm, so the firefighters rushed to the scene quickly.

After some inspection, I also found the cause of the matter. Therefore, it is suggested that we be civilized people. Perhaps it was because a relatively small number of citizens directly threw unburned cigarette butts into the flower bed, causing some weeds and trees in the flower bed to be burned, which led to this farce. For yourself or for everyone. This civilized society needs our joint efforts.