Behavioral measures of task performance and measures of body burden of lead (7439921) were obtained from experimental volunteer subjects exposed, during work in three storage battery plants, to inorganic lead and from volunteer controls working in light manufacturing plants, who reported no known exposures to organic lead or other toxic agents and were matched in sex, race, age, education, duration of employment, and geographic location. Correlated, multiple- regression analyses of results indicated that measured intellectual functions were not affected but hearing, tremor, eye-hand coordination, muscular strength and endurance, hostility, aggression and general dysphoria functions were influenced by body burden of lead. Strongest relationships were obtained in the neuromuscular or psychomotor functions, and major changes occurred at blood levels between 70-79 micrograms per 100 milliliters of blood.
NIOSH-Author; NIOSH-Contract; Contract-210-75-0026; Toxicology; Lead-poisoning; Metal-poisoning; Inorganic-compounds; Heavy-metals; Behavioral-tests; Occupational-health; Mental-processes; Ergonomics; Muscle-function; Psychological-tests; Psychological-factors; Psychological-disorders; Hearing-disorders; Neuromuscular-system-disorders; Psychomotor-disorders;
Health Effects of Occupational Lead and Arsenic Exposure, A Symposium, Division of Surveillance, Hazard Evaluation and Field Studies, NIOSH