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  2. Odor detection threshold - Wikipedia

    en.wikipedia.org/wiki/Odor_detection_threshold

    Some species can detect odors that others cannot. It is widely believed that animals such as dogs and rodents have a superior sense of smell overall, however a 2017 paper disputed that, saying that "the absolute number of olfactory neurons is remarkably consistent across mammals". [9]

  3. Ozone - Wikipedia

    en.wikipedia.org/wiki/Ozone

    CAS Number. 10028-15-6 3D model ... It is a pale blue gas with a distinctively pungent smell. ... Ozone must not come in contact with fishes' gill structures.

  4. Mustard gas - Wikipedia

    en.wikipedia.org/wiki/Mustard_gas

    Smith, Susan I. Toxic Exposures: Mustard Gas and the Health Consequences of World War II in the United States (Rutgers University Press, 2017) online book review; Wattana, Monica, and Tareg Bey. "Mustard gas or sulfur mustard: an old chemical agent as a new terrorist threat." Prehospital and disaster medicine 24.1 (2009): 19-29. online

  5. Think you smell natural gas? Here’s what NOT to do if you ...

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  6. Sulfur dioxide - Wikipedia

    en.wikipedia.org/wiki/Sulfur_dioxide

    Sulfur dioxide (IUPAC-recommended spelling) or sulphur dioxide (traditional Commonwealth English) is the chemical compound with the formula S O 2.It is a colorless gas with a pungent smell that is responsible for the odor of burnt matches.

  7. That rotten egg smell could be a gas leak. What can you do to ...

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    Natural gas leaks happen nearly every day in the U.S. — and they can be deadly if they go undetected. A report from a group of Texas environmental nonprofits released in June found around 2,600 ...

  8. Methanethiol - Wikipedia

    en.wikipedia.org/wiki/Methanethiol

    It is a colorless gas with a distinctive putrid smell. It is a natural substance found in the blood, brain and feces of animals (including humans), as well as in plant tissues. It also occurs naturally in certain foods, such as some nuts and cheese. It is one of the chemical compounds responsible for bad breath and the smell of flatus.

  9. Why We Love the Smell of Gasoline, According to Science

    www.aol.com/lifestyle/why-love-smell-gasoline...

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