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Being developed in children, lead poisoning can cause anemia and affect the growth and development, damage the nervous system, affecting cognitive function and thus reducing child IQ, and this impact is difficult to reverse, we must attach great importance. Relative to adults, the children's higher rate of lead absorption, growth and development of the brain and other organs of lead toxicity is also more sensitive. Lead poisoning hazard to children are even greater, particularly children under 5 years of age. The symptoms of lead poisoning is not clear, easily overlooked, to find, often has been difficult to reverse. When the children's blood lead concentrations of more than 100 micrograms / l, they will impact on health hazards, but at this time children can no obvious clinical manifestations or symptoms. Children are at high risk of lead poisoning, it is best to do a blood lead test at regular intervals and found that blood lead exceeded to take targeted nutritional interventions. The main symptoms of lead poisoning in children include: difficulty concentrating, hyperactivity, memory decreased; dizziness, headache; poor immunity, repeated colds, fever of unknown causes; abdominal pain, diarrhea; there biting pencils, nails, rubber and so on different food behavior, unclear articulation, stuttering, there are language barriers; learning disabilities; growth retardation, calcium, zinc and iron have not been effective; loss of appetite, the partial eclipse, or anorexia; caprice, irritability, love temper; anemia, pale face; limbs weak. In addition to children's blood lead level exceeding the dietary habits, but also with the surrounding environment are closely linked. In general, urban children's blood lead levels higher than those in rural areas, while urban air pollution, the more weight the more their children's blood lead exceeding situation is more serious. 2009-10-16
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