Radon
The gas seeps out slowly but you should have it refilled every couple of years
The gas of choice used in houses for cooking is propane. This is a natural gas which doesn't have an aftersmell or odor when ignited.
Mudpots form when depressions or enclosed basins containing gas seeps, as they bubble water or viscous mud.
Radon is a radioactive gas that occurs naturally in soil and rocks. It can seep into homes through cracks in the foundation and accumulate to levels that can pose a health risk. Long-term exposure to high levels of radon gas is associated with an increased risk of lung cancer. It is important to test for radon in homes and take steps to mitigate levels if necessary.
Because liquids and gas make lousy houses.
Why do you or anyone fart?Farting, also known as flatulence, is the act of passing intestinal gas from the anus. Intestinal gas comes from several sources: air we swallow, gas that seeps into our intestines from our blood, gas produced by chemical reactions in our guts, and gas produced by bacteria living in our guts.
Because it`s there.
under houses
You may be surprised at how long we have been using natural gas. In Greek writing 2000 years ago, recounted "eternal flames", which were probably natural gas seeps. The drilling for natural gas goes back less than 200 years. See related links.
Radon gas is a radioactive gas.In high risk areas,houses may need extra underfoor ventilation to stop the gas collecting or,ideally,a sealed floor to stop it entering in the first place. Radon is a decay product of uranium, which is relatively common in the Earth's crust, but generally concentrated in ore-bearing rocks scattered around the world. Radon seeps out of these ores into the atmosphere or into ground water, and in these localities it can accumulate within dwellings and expose humans to high concentrations.Radiation exposure from radon is indirect. Radon has a short half-life (4 days) and decays into other solid particulate. These radioactive particles are inhaled and remain lodged in the lungs, causing continued exposure. People in affected localities can receive up to 10 mSv per year background radiation.
Radon gas is a naturally occurring radioactive gas that is produced from the natural decay of uranium in soil, rock, and water. It seeps into buildings through cracks in the foundation or gaps in construction materials. Once inside, it can accumulate to levels that pose a health risk.
Cause the gas tank houses the (prepare yourself for this one) gas!