Hydrogen Sulfide The gas has a strong scent of rotten eggs, which makes it distinct from other, similar gases. If you detect this rotten egg scent and you are using hydrogen sulfide at your facility, this could be evidence of a leak.
Sulfur Creating a Smell
One often not considered source of a “gas-like” smell that can come from your home is bacteria inside of your sink or sewer system. It has a similar smell to the sulfur that is added to gas to give it an odor but is obviously less dangerous.
Propane itself is odorless, but manufacturers add mercaptan, a harmless 'odorizer' that produces a strong, distinctive odor similar to skunk spray or rotten eggs. This addition helps alert customers to leaks.
Strong smells in the area, like cooking or chemical odors, can mask the smell of natural gas.
Temporary discomfort and bloating could signal a normal buildup of gas, but excessive gas that's accompanied by abdominal pain, bloating or fullness, nausea or weight loss could be a warning sign of a more serious health issue – especially if you haven't made any significant changes to your diet or lifestyle.
Rotten Egg Odors
Natural gas and propane have a distinctive smell for a reason. For safety purposes, utility companies use an additive called mercaptan that gives colorless and odorless gases a smell that is hard to miss. Most people describe this smell as something like rotten eggs, sewage, or sulfur.
Gas is a naturally odourless substance, but the completely harmless artificial smell is added to make it more detectable. The substance injected is called mercaptan and gives off a strong sulphur-like smell, that some people say reminds them of rotten eggs.
If there is a gas smell but no leaks, it could be the lingering propane odor due to poor ventilation or it coming from your neighbor. The dirty sewage system, contaminated well, or rotten garbage (like veggies, dead animals, residual foods, etc.) might also be the source of the smell.
Carbon monoxide gas is colourless and does not smell, so you cannot tell if it is around you.
Natural gas leaks are particularly likely to cause smells in small, enclosed areas where gas can build up. If the leak is outside, the smell may seem to come and go as the breeze blows it away. The other big sign to look out for is a strange noise.
Hydrogen sulfide is a colorless, flammable gas that smells like rotten eggs at low concentration levels in the air. It is commonly known as sewer gas, stink damp, and manure gas. At high concentration levels, it has a sickening sweet odor.
The smell of sewer gas is often described as a noxious, rotten-egg-like odor. Its sulfuric, foul smell will permeate your entire home if left unaddressed, leading to major health issues down the line. Small amounts of sewer gas usually won't cause any immediate danger—but large amounts certainly will.
Phantosmia may be caused by a head injury or upper respiratory infection. It also can be caused by aging, trauma, temporal lobe seizures, inflamed sinuses, brain tumors, certain medicines and Parkinson's disease. Phantosmia also can result from a COVID-19 infection.
No, carbon monoxide (CO) alarms cannot detect natural gas leaks. They are designed to detect the presence of carbon monoxide, a poisonous gas formed during incomplete combustion of fuels like oil, gas, propane, and wood.
Here's what you should DO if you smell gas: DO leave the home, building, or area of the suspected leak. Get to a safe area as quickly as possible. After leaving your home, DO call the 24-hour emergency number for Peoples at 1-800-400-4271, or call your local emergency response number.
Phantosmia is a condition that causes you to detect smells that aren't actually in your environment. It can happen in one nostril or both — and the odors may be foul or pleasant. Common causes include colds, allergies, nasal polyps and dental issues.
If you detect any odor of gas, you should contact your local utility company or 911. Don't re-enter your home.
Many people worry that there is a problem with their CO detectors when, even though they can smell gas, their CO alarm has not gone off. However, in these scenarios, the CO alarm is not faulty. The detectors in these devices are only triggered by carbon monoxide, which is released by faulty fuel burning appliances.
The presence of a gas odor can indicate a potentially dangerous gas leak, which should be taken seriously. If you suspect a gas leak, immediately evacuate your home, call the gas company or emergency services, and do not attempt to fix the issue yourself.
The Gas Company is responsible for the main gas lines that run from the street to the property line, while property owners are responsible for the gas lines that extend from the property line to the building.
An odor of rotten eggs near an appliance is likely associated with natural gas. Look around the walls for stains; if you notice any discoloration, it could signify a gas leak. You can feel the area for any puffiness, which may indicate excessive heat, which is another indication of a gas leak.
A natural gas leak will usually smells like rotten eggs or a skunk-like odor. If something doesn't smell right, or if you hear a funny hissing noise, tell an adult right away. If you if think the smell is natural gas, get out of the house as fast as you can and find an adult.
Propane Smells Like Rotten Eggs
The smell is similar to rotten eggs or sulfur. Please make sure everyone in your home or business is familiar with it – we will be happy to provide a “scratch and sniff” card for your reference.