Global Network comprehensively reported that high-concentration air pollution harms human health, and the harm to pregnant women and unborn babies is more obvious. According to the British \”Daily Mail\” report, pregnant women exposed to high concentrations of air pollution can increase the risk of premature birth by 19%. Premature birth is most likely to occur in women exposed to air pollution between the seventh and 10th months of pregnancy and in the third trimester. Premature birth is when a person gives birth between 28 weeks and less than 37 weeks of gestation. Newborns born at this time are called premature babies. According to the U.S. Centers for Disease Control and Prevention, preterm birth is a new