How does lead enter the human body? The way for pregnant mothers to prevent excessive lead is to check for lead before pregnancy, choose a suitable living environment, and pay attention to a healthy diet. Pregnant women living near chemical plants and refineries may also have elevated blood lead levels. Women who are often exposed to ink and printed matter and work in industries such as beauty, metallurgy, ceramics, paint, and petroleum are also people whose blood lead is likely to exceed the standard. Pre-pregnancy lead testing can not only detect lead contamination in expectant mothers in time, but is also an effective way to prevent future fetal lead contamination. Therefore, women who plan to become pregnant should have their blood lead levels checked three months before pregnancy.

1. Wrap food directly with printed matter, especially printed matter such as newspapers. If used carelessly, it can cause lead contamination to pregnant women. Lead pollution in pregnant women's bodies will enter the placenta through the blood, affecting the development of the fetal brain, and the baby will have intellectual disabilities after birth. Unlacquered chopsticks and porcelain cutlery with colored interiors. Try not to use paint on baby toys. Babies like to chew on toys, which can lead to lead contamination and make them more susceptible to tooth decay.

2. Prevention: Care should be taken to avoid overexposure to lead. The main measures are to prevent passive smoking and eat less canned food and drinks. Do not engage in interior decoration during pregnancy; it is not recommended to use lead-containing cosmetics and lead-containing kitchenware; avoid eating food that has been exposed to the environment for a long time and some meat that has not been strictly inspected; avoid drinking the first sip of tap water overnight because this water High lead content; avoiding food in food bags does not prevent the text, pictures and trademarks on them from coming into direct contact with food.

3. Lead generally enters the human body through breathing, skin contact and oral cavity. Such as various vehicle fuels or exhaust, cosmetics, lead-based paint, daily necessities, handicrafts, plastic toys, etc. Avoid contact with the above items or environment. There are also blood lead tests and lead removal drugs. Lead can cross the placental barrier. If the blood lead level of a pregnant woman exceeds the standard, the fetus will be contaminated by the lead in the mother's body. When a child is born, his basal blood lead level will be greater than zero, and his overall development will be below the normal level of zero blood lead. The above is the answer to the question of how lead enters the human body and how pregnant mothers can prevent excessive lead.