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  2. What’s That Winter Air Burn In My Lungs? - AOL

    www.aol.com/winter-air-burn-lungs-143826164.html

    The nose warms and humidifies air more efficiently than the mouth. A slow drink of warm water may help relieve pain associated with the burning sensation in the lungs.

  3. Smog - Wikipedia

    en.wikipedia.org/wiki/Smog

    Smog, or smoke fog, is a type of intense air pollution.The word "smog" was coined in the early 20th century, and is a portmanteau of the words smoke and fog [1] to refer to smoky fog due to its opacity, and odour. [2]

  4. Air mass - Wikipedia

    en.wikipedia.org/wiki/Air_mass

    An air mass originating over northern Siberia in winter may be indicated as "cA". [3] The stability of an air mass may be shown using a third letter, either "k" (air mass colder than the surface below it) or "w" (air mass warmer than the surface below it). [3] An example of this might be a polar air mass blowing over the Gulf Stream, denoted as ...

  5. Crossword abbreviations - Wikipedia

    en.wikipedia.org/wiki/Crossword_abbreviations

    Taking this one stage further, the clue word can hint at the word or words to be abbreviated rather than giving the word itself. For example: "About" for C or CA (for "circa"), or RE. "Say" for EG, used to mean "for example". More obscure clue words of this variety include: "Model" for T, referring to the Model T.

  6. Air quality in Utah - Wikipedia

    en.wikipedia.org/wiki/Air_quality_in_Utah

    Air quality in Utah is often some of the worst in the United States. [1] [2] Poor air quality in Utah is due to the mountainous topography which can cause pollutants to build up near the surface (especially during inversions [2]) combined with the prevalence of emissions from gasoline- and diesel-powered vehicles, especially older models.

  7. Crosswordese - Wikipedia

    en.wikipedia.org/wiki/Crosswordese

    Crosswordese is the group of words frequently found in US crossword puzzles but seldom found in everyday conversation. The words are usually short, three to five letters, with letter combinations which crossword constructors find useful in the creation of crossword puzzles, such as words that start or end with vowels (or both), abbreviations consisting entirely of consonants, unusual ...

  8. Air Quality Health Index - Wikipedia

    en.wikipedia.org/wiki/Air_Quality_Health_Index

    Air Quality Health Index (AQHI) is a type of air quality index. Air Quality Health Index may refer to: Air Quality Health Index (Canada)

  9. Polar vortex - Wikipedia

    en.wikipedia.org/wiki/Polar_vortex

    As winter approaches, the vortex core cools, the winds decrease, and the vortex energy declines. Once late winter and early spring approach the vortex is at its weakest. As a result, during late winter, large fragments of the vortex air can be diverted into lower latitudes by stronger weather systems intruding from those latitudes.