The harm of excessive blood lead

If there is a large amount of lead in the human body, it will cause life-threatening danger. The most common one is lead poisoning, because lead is a very toxic heavy metal. Lead basically exists in our daily environment, so there is more or less a certain amount of lead in the human body. However, if the lead content in the human body is too high, it will cause great harm to the body and threaten the nervous system.

If the lead content in the human body is too high, the blood lead level will exceed the standard. The harm caused by excessive blood lead is very serious. The most common symptoms are nausea, vomiting, difficulty concentrating, etc., which are very harmful to the human body.

Excessive blood lead level means that the content of lead in the blood exceeds the normal value of blood lead content. If it is too high, it indicates lead poisoning. Excessive blood lead levels can cause a series of abnormal manifestations in the body's nervous system, blood system, and digestive system, affecting the body's normal functions. Lead is a neurotoxic heavy metal element that has no physiological function in the human body. The ideal blood lead concentration is zero. However, due to the widespread presence of lead in the environment, a certain amount of lead exists in most human bodies. If the amount of lead in the body exceeds a certain level, it will cause damage to health. Children are particularly sensitive to lead toxicity due to their metabolic and developmental characteristics. Studies have confirmed that when the blood lead level is around 10ug/dL (0.483umol/L), although it is not enough to produce specific clinical manifestations, it can have an adverse effect on children's intellectual development, physical growth, learning ability and hearing. When lead is absorbed into the human body through the respiratory tract and digestive tract, its effects on the body are systemic and multi-systemic. Depending on the presence or absence of clinical manifestations, lead poisoning is divided into symptomatic lead poisoning and asymptomatic lead poisoning (or subclinical lead poisoning).

If the blood lead level in children exceeds the standard, it will directly affect the central nervous system of the child's brain. If the blood lead level in pregnant women exceeds the standard, it will directly cause the fetus to be contaminated by lead, so we should try to avoid eating lead-containing foods in daily life.