Air pollution contributes to 4.2 million deaths each year.
In 1973, at the origins of studies on the effects of air pollution on childbirth in Los Angeles, a link between the effects of air pollution in the womb and low birth weight was found. Since then, researchers have uncovered various factors affecting the health of babies.
Prenatal effects of air pollution from vehicles can also affect the birth weight of babies, periods of pregnancy, and lung health after birth and later in life.
Studies show that exposure to pollution while in the womb may also lead to sleep disorders and behavioral problem