New york: a new research has revealed that if the pregnant women spend 3 months in traffic pollution then the rate of birth deficit has unusual increase in new born children. The scientist of New York University said that if the pregnant women spend more time in pollution then the chances of weight loss children has increased. According to survey almost 83% women children have born the less weighted children. So experts suggested that pregnant women avoid from the air pollution traffic crowds. Pregnant women should avoid from the pollution. If the children weight is less then it also effects on the hearing and visualization of child. Child is also face the difficulty in learning. So need to further investigation in this case.