Effects of occupational exposure to inorganic lead on neuromuscular functioning

1974 ◽  
Author(s):  
John D. Repko ◽  
John A. Nicholson ◽  
Ben B. Morgan
Keyword(s):  
Occupational Exposure ◽  
Inorganic Lead ◽  
Neuromuscular Functioning

Effects of Occupational Exposure to Inorganic Lead on Neuromuscular Functioning

1974 ◽  
Vol 18 (2) ◽  
pp. 209-218
Author(s):  
John D. Repko ◽  
John A. Nicholson ◽  
Ben B. Morgan
Keyword(s):  
Occupational Exposure ◽  
Body Burden ◽  
Blood Lead ◽  
The Body ◽  
Manufacturing Companies ◽  
Inorganic Lead ◽  
Lead Levels ◽  
Experimental Subjects ◽  
Hand Coordination ◽  
Neuromuscular Functioning

In an investigation of the behavioral effects of Occupational Exposure to lead, nineteen measures of neuromuscular performance and five measures of the body burden of lead were obtained from 316 experimental and 112 control subjects. The experimental subjects were volunteers from among workers exposed to inorganic lead at their jobs in three storage (lead-acid) battery manufacturing companies; the controls were volunteers from companies involved in other various types of light manufacturing. The relationships among the measures of neuromuscular functioning and body burden of lead were determined through the use of correlation and multiple-regression analyses. The results of these analyses suggest that functional capacity decreased in terms of tremor and eye-hand coordination but increased in terms of muscular strength. In addition, the data suggest that these changes occur on the preferred side and at blood-lead levels between 70 and 79 micrograms per cent.

scholarly journals Occupational exposure to inorganic lead and its compounds in Romania

2020 ◽  
Vol 71 (1) ◽  
pp. 26-33
Author(s):  
Mihaela Negru ◽  
Violeta Calotă ◽  
Lavinia Călugăreanu ◽  
Dana Mateș
Keyword(s):  
Occupational Exposure ◽  
Weighted Average ◽  
Metal Wire ◽  
Lead Compounds ◽  
Limit Value ◽  
Hazardous Chemical ◽  
Inorganic Lead ◽  
Health Authorities ◽  
Lead Recovery ◽  
Public Health Authorities

AbstractLead and its compounds are hazardous chemical agents; some lead compounds, are classified as carcinogens in humans. In Romania, the occupational exposure to inorganic lead and its compounds occurs in many sectors: production of lead, manufacture of batteries, manufacture of thermal ceramic products (terracotta), production of electric and electronic components, manufacture of articles of metal wire, production of dyes and additives for plastics, recovery of lead from waste batteries, waste collection and treatment of electrical and electronic equipment, etc. The binding occupational limit value for inorganic lead compounds established under the national regulations is 0.15 mg/m3 in the air (measured in relation to a reference period of eight hours, time-weighted average, TWA). The binding biological limit value is 70 μg Pb/100 ml blood. We have summarized lead occupational exposure data collected from the regional public health authorities in Romania, for the period 2011-2019. The concentrations of lead recorded in the workplaces air varied between “not detected” and 0.22 mg/m3. The lead concentrations in the blood had high values (over the alert value of 40 μg/100 ml blood) in several activities (production of lead, recovery-recycling of lead from waste batteries, manufacture of batteries, and manufacture of articles of metal wire) leading to the need of continuous surveillance of health status for the exposed workers.

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