ILO Home
Go to the home page
Site map | Contact us Français | Español

CISDOC database

Document ID (ISN)29262
CIS number 78-764
ISSN - Serial title 0003-9896 - Archives of Environmental Health
Year 1977
Convention or series no.
Author(s) Lilis R., Fischbein A., Diamond S., Anderson H.A., Selikoff I.J., Blumberg W.E., Eisinger J.
Title Lead effects among secondary lead smelter workers with blood lead levels below 80µg/100ml.
Bibliographic information Nov.-Dec. 1977, Vol.32, No.6, p.256-266. Illus. 31 ref.
Abstract Groups of 158 foundry workers and 24 workers from other plants in the same area were studied; 71% of the foundry workers had less than 80µg/100ml lead in blood and no history of elevated concentrations. In the 71% subgroup, central nervous system symptoms (tiredness, sleeplessness, irritability, headache) were reported by 55% of the group and muscle and joint pain by 39%. Zinc protoporphyrin (ZPP) levels were elevated in 71% of cases. Low haemoglobin levels (less than 14g/100ml) were found in more than a third of the workers. While blood urea nitrogen (BUN) and creatinine were mostly in the normal range, there was a correlation between ZPP and both BUN and creatinine. Reduced nerve-conduction velocities were present in 25% of the group; this was not significantly different from findings in a control group. A blood level of 80µg/100ml is an inappropriate biological guide in the prevention of lead disease.
Descriptors (primary) lead; foundries; biological effects
Descriptors (secondary) protoporphyrin; USA; central nervous system; creatinine; biological threshold limits; occupational health survey; conduction velocity; serum zinc level; symptoms
Document type -
Subject(s) Toxic and dangerous substances
Broad subject area(s)
Browse category(ies) Inorganic substances
Foundries, metalcasting and forging operations
Lead and compounds