Lead Exposure Among Workers at a Shipyard-Wisconsin, 2015 to 2016.

Objective: In March 2016, the state health departments of Wisconsin and Minnesota learned of three shipyard workers with blood lead levels (BLLs) more than 40 μg/dL. An investigation was conducted to determine the extent of and risk factors for the exposure.

Methods: We defined a case as an elevated BLL more than or equal to 5 μg/dL in a shipyard worker.