Workbook for Designated Substance Assessments
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366-BPV-01-IMOT © 2024, Workplace Safety & Prevention Services (WSPS)
1 877 494 WSPS (9777) | 905 614 1400 | WSPS.CA
GUIDELINES FOR WORKSHEET 5: WALK THROUGH CONCLUSIONS
From your walk-through observations recorded on Worksheet 4, identify, and compile any concerns you
have in controlling the substance and, consequently, with worker exposure to it. Worksheet 6 also offers
the opportunity to identify where further information may be needed regarding worker exposure and
consequent effects on health.
QUESTIONS 1. (a), (b): Determine if there were any problem areas where installation of a control or
upgrading of current ones is required.
QUESTIONS 2. (a), (b): Monitoring of the worker's exposure to airborne concentrations of the
designated substance will determine the magnitude of worker exposure and help determine the
effectiveness of existing controls.
Note: Repetition of this worker exposure monitoring will be necessary after adjustments of existing
controls or following the establishment of new ones. This will confirm that the designated substances
airborne concentrations are within the acceptable limits.
QUESTION 3: Medical testing may reveal the presence of certain substances in the exposed workers'
blood or urine (depending on the substance) and any adverse health effects. Consult the Code for
Medical Surveillance for the substance being assessed to determine the appropriate tests required.
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