What should be done if the concentration of combustible gas is too high?

When the concentration of combustible gas is too high, the first response should be to evacuate the area and notify the authorities. This is crucial for ensuring the safety of individuals in the vicinity, as high levels of combustible gas pose an immediate explosion or fire hazard. Evacuation minimizes the risk of injury to personnel and allows trained emergency responders to assess the situation and take appropriate action.

Notifying authorities is essential because they have the expertise and equipment to handle hazardous situations safely. They can measure gas levels, determine sources of leaks, and implement necessary measures to mitigate danger. This response prioritizes human safety and addresses the potential threat quickly and effectively, preventing escalation into a more serious incident.

Taking measures like increasing ventilation or sealing the area may sound beneficial but actually can exacerbate the situation or be ineffective if immediate evacuation and mitigation are not employed first. In cases of high combustibility, ensuring that no one is in the danger zone and that professional help is on the way takes precedence. Similarly, doing nothing is not a viable option in the face of such hazards, as it directly increases risk. Thus, evacuating and notifying the authorities is the appropriate and recommended response.