What is the most critical effect of lead exposure, especially in children?

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AImpaired neurodevelopment

BBone deformities

CRespiratory problems

DSkin rashes

Answer:

Lead is a well-known neurotoxin. Impairment of neurodevelopment in children is the most critical effect. Exposure in utero, during breastfeeding and in early childhood may all be responsible for the effects.
Lead accumulates in the skeleton, and its mobilization from bones during pregnancy and lactation causes exposure to fetuses and breastfed infants. Hence, the lifetime exposure of woman before pregnancy is important.

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