A gas leak occurs when natural gas or propane escapes from its intended piping or storage. This can happen due to damaged pipes, faulty appliances, or improper installation. Gas leaks can pose serious safety risks, including fire hazards and health issues, as inhaling gas can lead to symptoms like headaches and dizziness. To detect a gas leak, people often rely on the smell of mercaptan, a chemical added to natural gas to give it a distinct odor similar to rotten eggs. If a gas leak is suspected, it is crucial to evacuate the area immediately and contact emergency services or a qualified technician for assistance.