[Correlation of protoporphyrin zinc with lead in blood in workers of the car batteries industry in Bogota, Colombia].

Objective: To determine the usefulness of zinc protoporphyrin in blood (PPz) as an indicator of lead exposure in workers of the homemade car battery industry.

Material And Methods: A cross-sectional study was performed in 116 workers of the car battery industry in Bogotá, Colombia. Data on general, occupational, and health variables were collected by interview.