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A comprehensive neurobehavioral and neurophysiological study for low level lead-exposed workers.
1Department of Occupational Health, Shanxi Medical University, Taiyuan 030001, P.R. China. SXYDWSXY@public.ty.sx.cn
Giornale Italiano Di Medicina Del Lavoro Ed Ergonomia
|April 4, 2001
Summary
Low-level lead exposure significantly impacts neurobehavioral and neurophysiological functions in workers. Regular screening using the Neurobehavioral Core Test Battery (NCTB) and Autonomic Nervous System (ANS) tests is recommended for early detection.
Area of Science:
- Neuroscience
- Occupational Health
- Toxicology
Background:
- Lead exposure is a significant occupational hazard.
- Understanding the neurobehavioral and neurophysiological effects of low-level lead exposure is crucial for worker health surveillance.
Purpose of the Study:
- To evaluate the adverse effects of low-level lead exposure on neurobehavioral and neurophysiological functions.
- To compare the sensitivity and ease of use of various neurobehavioral and neurophysiological testing methods.
Main Methods:
- A comprehensive study involving 44 lead-exposed workers and 34 matched referents.
- Utilized the WHO Neurobehavioral Core Test Battery (NCTB), Autonomic Nervous System (ANS) Test Battery, Brain Electricity Active Mapping (BEAM), and Nerve Conduction Velocity tests.
Main Results:
- Lead-exposed workers exhibited significant differences in mood states (POMS), neurobehavioral tests (SRT, DSY, PAC, PA), autonomic nervous system function (HR-V, HR-DB, BP-IS), brain electric waves, and nerve conduction velocity.
- Mean blood lead concentration was significantly higher in exposed workers (1.3870 mumol/L) compared to referents (0.6080 mumol/L).
Conclusions:
- The NCTB and ANS function tests are recommended as a regular screening battery for low-level lead-exposed workers.
- A threshold blood lead concentration of 1.4 mumol/L (30 micrograms/dL) is suggested for initiating health surveillance.
