Exposure to air pollutants during pregnancy and after birth increases the risk of neonatal hyperbilirubinemia

•Neonatal hyperbilirubinemia is a common disease in neonatal period.•Air pollution exposure after birth increase the risk of neonatal hyperbilirubinemia.•Maternal air pollution exposure also increase the risk of neonatal hyperbilirubinemia.•Controlling ambient air pollution may reduce the burden of health care.