Lead Case Study

People whose work exposes them to lead might inadvertently bring lead dust home on their clothes and skin.  This dust can then enter the air of the home and, if breathed in by children, increase the children's level of lead.  Lead poisoning can be dangerous for children.  

The data below were collected from a study by D. Morgon, et al., on two groups of children.  In the first group, 33 children of workers at a battery factory had their blood lead levels measured (in micro-grams per deciliter).  These children are the "exposed" group.  For each "exposed" child, a "matching" child was found of the same age living in the same area. The matching child's parents did not work around lead.  These are the "control" group.

Examine the data to support or refute the claim that working around lead can increase the lead level in one's children.


Data (tab-delimited text)

Acknowledgements