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Figure 2 | Journal of Occupational Medicine and Toxicology

Figure 2

From: Mercury vapour exposure during dental student training in amalgam removal

Figure 2

Mercury vapor concentrations in ambient air during amalgam removal relative to AOHS permissible exposure limits. Sample size = 25 for each of the three experimental conditions. During removal of dental amalgams from model teeth in the dental jaw simulator using a dental drill, mercury vapor in ambient air was measured at a distance of 38 cm from the amalgam site. The range of measurements and highest measurement obtained under each of the three experimental conditions is portrayed. The thick band indicates the range between the first and fourth quartiles. Alberta Occupational Health and Safety (AOHS) permissible exposure limits for mercury vapor are indicated.

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