According to news on January 22, a child threw firecrackers at the Nanbin Upper Courtyard in Wanzhou District, Chongqing, causing an explosion. Several manhole covers were blown away, which attracted the attention of netizens.According to video from the scene, multiple manhole covers were blown away and surrounding floor tiles were scattered on the ground. Witness: A vehicle was damaged at the scene and the child was sent to hospital for treatment.In the on-site video shot by nearby residents, bricks were scattered on the ground, a child had blood on his face, and the white SUV was smoking and seemed to be damaged. 120 and fire rescue personnel rushed to the scene to deal with it.
Some citizens said that the explosion was caused by children playing with firecrackers.
The netizen who posted the video said that as the Chinese New Year is approaching, children should be warned not to throw firecrackers (firecrackers) into the sewer.
Similar incidents emerge one after another. Similar situations have occurred in Guangxi before. The property management of a nearby community retrieved surveillance video and found the child involved and his parents. After preliminary understanding, it was found that there was a sewage well under the manhole cover, and there was biogas and methane underneath. When the child put the firecrackers into the gap of the manhole cover, the firecrackers ignited the biogas and exploded instantly.