Occupational Health and Safety Act, 1993 (Act No. 85 of 1993)RegulationsRegulations for Hazardous Chemical Agents, 2020AnnexuresAnnexure 3 : Hazardous Chemical Agent GuidelinesGuidance on medical surveillance and biological monitoringMixed exposuresComplicating factors |
| 85. | Several factors that complicate the assessment and control of exposure to individual agents will also affect cases of mixed exposures and will require similar special consideration. Such factors include: |
| (a) | exposure to an agent for which there is no established limit or for which an OEL-ML has been set; |
| (b) | the relevance of factors such as alcohol, medication, smoking and additional stresses; |
| (c) | exposure of the skin to one or more agents that can be absorbed by this route, as well as by inhalation; and |
| (d) | agents in mixture may mutually affect the extent of their absorption, as well as their health effects, at a given level of exposure. |