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Table 3 Lead concentrations in the company unit: mg/m 3

From: The Relationship of Liver Function Tests to Mixed Exposure to Lead and Organic Solvents

Company Work process Group Location Maximum Minimum TWA *
1 2 3 4 5 6
Steel company Steel melting Lead exposed 0.0149 0.0052 0.0164 0.0207 0.0098 0.0002 0.0207 0.0002 0.05
Non-ferrous metal company Detonator synthesis Mixed exposure 0.0045 0.0048 0.0064 0.0049 0.0051 0.0052 0.0064 0.0045 0.05
Paint manufacturing company Combination Mixed exposure 0.0025 0.0088 0.0045 0.0024 0.0028 0.0014 0.0088 0.0014 0.05
  1. *Time weighted average.