What should be done immediately if there is a gas leak detected?

When a gas leak is detected, the immediate priority is to ensure the safety of all individuals in the vicinity. Evacuating the area and calling for help is the correct action to take because gas leaks can pose serious health risks, including the potential for fire, explosion, or carbon monoxide poisoning.

By evacuating, you remove yourself and others from an imminent danger zone. After ensuring everyone's safety, calling for professional help is crucial because trained personnel can effectively assess the situation and neutralize the hazard. This response adheres to safety protocols that prioritize health and safety during such emergencies.

The other responses would put individuals at risk. Continuing to use appliances could ignite a fire or exacerbate the leak. Waiting for gas to dissipate can be dangerous since gas concentrations may linger and still pose a significant risk. Staying indoors, even to notify neighbors, would not prevent exposure to potential hazards present from the leak.