what is another name for sewer gasses. and is it of ant danger from the odor coming from bathroom sink.?

Answer 1

methane gas. Are you sure the plumbing is done correctly? There's a reason why there's an 'elbow' in the drain and that's to prevent the gas from backing up.
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ok...who's so naughty as to give all of us negative answers? Shame on you!

Answer 2

Methane also known as natural gas (like from the gas that heats your house) before it is deodorized and the perfume added. There are other gases commonly found like sulfur dioxides, toxic and flammable.
Highly flammable if allowed to concentrate to the sanchiommetric mixture (about 15-20 %)
It could be a source for virouses to inter your home.
It needs to be corrected ASAP

Recintly a handyman did some work on an elderly womans house ,the firemarsil said the sewer wasn't vented properly and no trap under the kitchen sink caused the explosion. the woman died several days lator from massive burns .
the house , a three bedroom with attached garage was leveled with only a partial wall left standing. the handyman is looking at murder charges over this .and other work he has done is being inspected , some sub par so far

Answer 3

Sewer gas contains methane, which is odorless by the way, and it can explode in the right concentration. What you are smelling are other gases.

If you don't use the sink very often, the water in the trap can evaporate. The solution is to run the water for a few seconds every week or so to keep the trap filled.

If it's in a bathroom that you use every day, something is wrong with the plumbing (no vent, or vent clogged) and it needs to be corrected.

Answer 4

Methane as the others said. It can be eliminated with a $5 trap that installs in about 10 minutes. Get a universal one at Lowes or Walmart. The shape of it will keep water trapped in the drain pipe and block any contaminates.

Answer 5

some of these answers are right. keeping that smell out is important. If the trap is going dry then try a liquid with less evaporation rate. Not supposed to dump stuff like anti freeze down there but if it works. (I'm supposing you are not using it regularly)
the other problem could be that there is no proper vent. So like when you flush the toilet, it siphons the trap allowing the gasses through.
make sure the trap is installed properly

Answer 6

Unless the sink is setting unusued for weeks at a time you have a plugged vent line. Snake out the vent or have someone do it and your smelly problem should go away.

Bert

Answer 7

sewer gas is actually a mixture of different gases. Most commonly hydrogen sulfide, methane, and carbon dioxide.

While sewer gas can burn it is very very unlikely to concentrate enough to reach the lower explosive limit.

Answer 8

Methane gas. And I doubt it's a danger, it just might smell gross. But you can always call a plumber and have him check it out for you.

Answer 9

Methane. No real danger, but the smell can be really bad.