What is the primary safety concern when working with gas?

The primary safety concern when working with gas is the risk of explosion and fire due to leaks. Gas is highly flammable and can form explosive mixtures with air. If there is a leak in the gas lines or connections, even a small spark from electrical equipment or static electricity can ignite the gas, leading to a potentially catastrophic explosion or fire.

Proper ventilation, regular maintenance, and the use of detection systems are crucial safety measures to prevent such incidents. While carbon monoxide poisoning is a serious risk associated with the improper use of gas appliances, the immediate and potentially devastating threat posed by gas leaks makes explosion and fire the foremost concern.

Utilities and safety regulations often emphasize the importance of managing gas leaks to ensure safety, which is why this concern is prioritized over others like the potential for gas to run out or equipment failure, both of which, while valid considerations, do not carry the same level of immediate danger as the risk of explosion and fire.