Final answer:
Lead is the chief culprit in lead poisoning of children. They can be exposed to lead through various sources, and preventive measures and treatment options are available.
Step-by-step explanation:
The chief culprit in lead poisoning of children is lead itself. Exposure to lead can occur through contaminated air, water, dust, food, or consumer products. Children are at greater risk because they are more likely to put objects in their mouth that contain lead paint and absorb a higher proportion of the lead they consume. Lead poisoning can have various symptoms and can be diagnosed by measuring the blood lead levels. Preventive measures include removing lead-containing items from the home, improving ventilation, and monitoring. Treatment options involve removing the source of lead and using medications that bind lead for elimination from the body.