Tunnel ventilation and air quality
Applicability: Gravity-based and/or hybrid self-unloading vessels discharging bulk cargo ashore or offshore. Complete Section 8E together with 8A and/or 8B as appropriate to the cargo.
What is being checked
Ventilation capacity and tunnel air quality are assessed.
Ready on board
0 / 4 checkedCheck the vessel’s actual procedures, equipment and records against these points from RISQ 3.2.
Practice questions
Preparation prompts derived from this entry, not an official inspector interview script.
1Does a paper mask prove poor air quality, or its absence prove safety?
Neither. The source makes the first assertion, but mask use alone does not establish atmospheric conditions.
Where a finding may arise
Explicit RISQ trigger: poor air quality inside the tunnel. The source’s paper-mask assertion is flagged as an evidential limitation.
Past observations for practice
Anonymised reports, manually reviewed before publication. These are reported experiences, not additional inspection requirements.
No reviewed observations have been added for this entry.
Share an observation for private review
Remove vessel, company and inspector names, report numbers, exact dates and confidential information. Do not paste a complete inspection report.
Source clarification
The source supplies no air-quality acceptance threshold or measurement method. Do not invent one or interpret a mask as adequate protection.
References and source status
RightShip Inspection Ship Questionnaire, November 2025, version 3.2. Section 8E, page 164, reference 8.28.
The explanation, checklist and practice answer derive from the supplied questionnaire. Reported observations are separately contributed and manually reviewed; they are not official RISQ guidance.
Independent DeepDraft preparation guide, based on the supplied RISQ 3.2 questionnaire. Not an official RightShip product or inspection report.