What should be done if ambient CO concentrations exceed a certain level?

If ambient carbon monoxide (CO) concentrations exceed a certain safe level, the appropriate action to take is to abort the diagnostic evaluations and inspections. This is crucial for safety because high levels of CO are a serious health risk. Continuing operations in an environment where CO levels are elevated could expose both the technician and occupants to dangerous conditions.

Aborting the analysis ensures that no further risks are introduced while allowing time to identify and remediate the source of the CO. This approach prioritizes safety by not only protecting the individuals present but also by ensuring that any further assessments or tests do not inadvertently worsen the situation or place anyone in jeopardy.

Other actions, while important in a different context, do not address the immediate danger posed by high ambient CO levels. Notifying the client or installing CO detectors may be necessary follow-up actions, but they should occur after the immediate risks have been mitigated by halting further inspections. Resuming testing is inappropriate as it increases exposure to CO when safety should take precedence.