The first way to recognize that you may have a gas leak in your home is to pay close attention to your nose. Natural gas is actually odorless but the gas company infuses it with odorant so that we can detect a leak by smelling it.
Another way to detect a gas leak is by sight. You may see dust, dirt, or water being blown into the air by a burst pipe. You may also see dead or dying plants, or grass, along the area of broken gas pipe.
And a third way to detect a possible gas leak in your home is by way of listening. You may detect an unusual hissing or whistling sound which could be coming from a broken or damaged gas pipe.
Last but certainly not least, if you suspect you may have a gas leak IMMEDIATELY EVACUATE the area, and from a safe location call the Gas Company (in So Cal dial 1-800-427-2200) 24 hours a day, seven days a week; or call 911.