Hazardous Substances, Asbestos, Dust and Fumes
Assessment and control of construction exposure to hazardous substances, respirable dust, fumes, asbestos and lead.
How to prepare for the CITB MAP test
Build manager-level decisions around role, prevention, coordination, verification and learning rather than memorising isolated site rules.
Core concepts
Concept 1
Managers must identify hazardous substances and processes, assess exposure routes and prevent or adequately control exposure.
Exam cue: Consider the task, material, exposure route, duration, people nearby and combined exposures.
Concept 2
Source control, substitution, enclosure, extraction and wet methods normally precede RPE and administrative controls.
Exam cue: Control dust or fume where it is generated and verify that controls remain effective.
Concept 3
Asbestos and other high-hazard materials require reliable survey information, competent decisions and the correct licensed or trained route.
Exam cue: Stop on suspect material or missing survey information before disturbing the fabric.
Risk pitfalls and guardrails
Relying on disposable masks while uncontrolled dust is generated.
Guardrail: Do not solve a design, engineering or organisational failure only with a briefing, warning sign or PPE.
Assuming a newer-looking refurbishment means asbestos is absent.
Guardrail: Do not solve a design, engineering or organisational failure only with a briefing, warning sign or PPE.
Using a safety data sheet as the complete task exposure assessment.
Guardrail: Do not solve a design, engineering or organisational failure only with a briefing, warning sign or PPE.
Memory anchors
Assess the Process
The hazardous substance, task, route, duration and people exposed all matter.
Control at Source
Eliminate, substitute, enclose, extract or suppress before relying on RPE.
RPE Must Fit
Select the correct protection, face-fit where required and maintain it properly.
Survey Before Disturbance
Reliable asbestos information must match the building area and planned work.
Stop on Suspect Material
Do not sample, break or sweep unknown material without the competent route.
Verify Controls
Inspect extraction, water suppression, housekeeping and worker practice during the job.
Checkpoint rule
Do the check-up only after you can summarize each concept in one sentence and identify one dangerous pitfall from memory.
Knowledge Check (after reading)
Short check-up to confirm understanding of this module.
Check-up Questions
Next step personalized recommendations
Continue learning
Move forward only after this module is stable.
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