The leaded gasoline was invented by Thomas Midgley in 1923 (it is worth mentioning that this person also invented freon),19241kloc-0/0. On October 30th, five workers died of lead poisoning in the New Jersey factory of Standard Oil Company, and at least 35 people were taken to the hospital for emergency treatment. Tetraethyl lead in leaded gasoline is different from ordinary lead, which is more deadly, and skin contact with half a cup will be fatal. It is believed that the harm of leaded gasoline has been discovered before this.

Claire Patterson improved the uranium and lead dating method in 1956. In this study, people found that leaded gasoline is very harmful to the public environment, and she kept calling for restrictions on leaded gasoline. 1963, she published a paper on the serious harm of leaded gasoline to human beings, which was suppressed by "experts" funded by petrochemical production organizations and influenced by financial groups, politics, media and religion. However, he did not give in. He kept collecting evidence, giving speeches and submitting articles calling for stopping using leaded gasoline until the United States passed the Clean Air Act in 1970. It was not until 1986 that the United States completely banned the sale of leaded gasoline, and all gasoline produced in the United States was lead-free.

"Patterson inadvertently mastered the truth that a few people wanted to cover up and knew the consequences, but he bravely exposed the black hand of the chaebol. Later, in the face of all kinds of persecution and pressure, fighting alone finally stopped the train to destruction. If it weren't for Patterson, hundreds of millions of people would die of lead poisoning, and hundreds of millions of babies would suffer from cerebral palsy and death due to lead poisoning. This is a catastrophe for all mankind. " Patterson didn't give in to the chaebol and lies, but today there are still "experts" who have lost their conscience for the benefit.