On June 15, 2016 (May 11, 2016 in the lunar calendar), the poisoned runway incident. On June 15, 2016, the reporter and his party came to Baoding, Cangzhou and other places to investigate, and contacted the person in charge of a plastic runway construction team in the name of negotiating the runway project. The person in charge told the reporter that the key to making money lies in the raw materials of the plastic runway, which are generally made of waste tires and waste cables, and the cost is low. On June 17, 2016, the reporter came to Cangzhou again. The person in charge of the construction unit took the reporter to a place 20 kilometers away from the urban area. The road was lined with stinky rubber waste, which smelled pungent. Some rubber waste products such as waste tires and waste cables piled up into mountains, and these rubber waste were beaten into black particles. These black particles are the main materials of the plastic runway. The main raw material of this kind of breathable plastic track on campus, black plastic particles, entered the campus in a grand manner without the manufacturer, instructions for use, and quality inspection. Exposure screen Poison track refers to the phenomenon that plastic track contains toxic ingredients in the renovation of campus playgrounds. Since 2014, the phenomenon of "odor track, odor playground" has occurred in many schools in Beijing, Suzhou, Wuxi, Nanjing, Changzhou, Shenzhen, Shanghai, Hebei and other places, and some caused nosebleeds, allergies, dizziness, nausea and other symptoms in students. Poison track incidents have attracted widespread attention, triggering continued attention to public health. Xinhua, CCTV, etc. have continued to pay attention, and became a hot event in 2016. Poisoned runway, causing parents to pay close attention and request that classes be suspended!