Industrial pollution includes lead mining, smelting, battery production and recycling enterprises, shipbuilding industry, cable manufacturing, etc.; pollution in life includes children’s painting paints, mothers’ cosmetics, tin foil for making egg tarts, tin pots for water, second-hand smoke environment, car exhaust, etc. Don’t take your child to play near lead work factories. Don’t give your baby toys with heavy oil paint during the baby’s micturition period, which may lead to lead poisoning due to the baby chewing on them. Pregnant women and children should stay away from second-hand smoke. Don’t play near highways, car exhaust contains lead, which can enter baby’s body through breathing. Families with old iron pipes should not use water that stays in the pipes for a long time for babies to drink or cook with.