Accumulation of metals in the tissues of occupationally exposed workers

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Abstract
Neutron activation analysis has been used to assess the accumulation of metals in lung and other tissue takenpost mortem from occupationally exposed workers. Two groups together with controls have been examined. Twenty-one workers from northern Sweden, previously employed in metal refining, show concentrations of several metals above that in the controls. Increased metal concentrations in lung tissues are also observed in groups of coal miners from the United Kingdom. These results are discussed in relation to the amounts of industrial pollutants taken into lung and their retention periods as a means of estimating the occupational exposure dose.