To the Editor: The work described by Baker et al. in the February 3 issue of the Journal illustrates an important new dimension of the lead-poisoning problem. The close association of lead particulates, apparently brought home from the workplace, and symptomatic lead poisoning is an impressive finding. Although we have not studied the homes of workers with children experiencing symptoms, we have recently completed an assessment of the lead content of particulates in the homes of employees of two secondary lead smelters. In both locations, the plants launder the workers' clothing, and employees shower before going home.Wipe samples . . .