TYLER, Texas (KLTV) - Hydrogen sulfide is a gas that naturally occurs in sewers, manure holes, water wells, and oil and gas wells.

Dr. Bryan Tuten, a chemistry professor at UT Tyler, says hydrogen sulfide can be recognized by its rotten egg odor.

“Your nose is so sensitive to it that a single molecule hitting your nose is enough to tell your brain that you smell hydrogen sulfide,” said Tuten.

When inhaled at different levels over time, hydrogen sulfide can have a wide range of health impacts.

“If you are in an environment that has a lot of it, and you smell it too much, it will actually destroy your ability to smell temporarily, then you don’t actually know how much you are being exposed to, so that’s one of the big dangers of hydrogen sulfide,” said Tuten.

The dangers don’t stop ther

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