Erosion Haze

(This work is not a cool novel, there is no heroine, and the protagonist is a lone wolf most of the time. Note: Do not imitate the various chemical knowledge in this novel in real life. We will not be responsible for anything that happens. It is all fictitious, so don't do it.) Zhang Chen is a recently graduated college student. In this age where masters are delivering food and undergraduates are screwing screws, his only place to stay is on the assembly line of a suburban factory. Two hundred yuan a day, taking care of one meal, is already a "high salary" in the eyes of peers. The working environment is harsh, with oil and cutting fluid fumes permeating the air all day long, and supervisors staring at everyone like prisoners. But he had no choice—— The family has a mortgage loan, his father is suffering from old injuries and is facing layoff, and his mother works odd jobs to support the family. He never thought about marriage or the future, he just wanted to live to pay off his debts. That morning, he was woken up by the alarm on his cell phone and prepared to go to work as usual. But there was dead silence outside the window, the weather was wrong, the faucet did not produce water, the lights did not turn on, and there was only an empty question mark on the mobile phone signal bar. At first, he thought it was an ordinary water and power outage. It was not until he got closer to the window that he saw that the world outside had been completely swallowed up by a layer of gray-yellow thick fog. He didn't know what happened or what was going on. Zhang Chen called the emergency number countless times, but even the police phone could not be dialed normally. At this time, confusion and anxiety filled Zhang Chen's heart, leaving him wondering what to do next? And at this moment, there was a regular knock on the door outside...