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2. 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 odor. [ 2 ] The word was then intended to refer to what was sometimes known as pea soup fog, a familiar and serious problem in London ...

3. Ground-level ozone - Wikipedia

   en.wikipedia.org/wiki/Ground-level_ozone

   Ground-level ozone. Seasonal average vertical columns of tropospheric ozone in Dobson units over the period 1979 to 2000. In June to August, photochemical ozone production causes very high concentrations over the East Coast of the US and China. Ground-level ozone (O3), also known as surface-level ozone and tropospheric ozone, is a trace gas in ...

4. Vog - Wikipedia

   en.wikipedia.org/wiki/Vog

   Vog. Vog is a form of air pollution that results when sulfur dioxide and other gases and particles emitted by an erupting volcano react with oxygen and moisture in the presence of sunlight. The word is a portmanteau of the words "volcanic" and "smog". [1] The term is in common use in the Hawaiian Islands, where the Kīlauea volcano, on the ...

5. Air pollution - Wikipedia

   en.wikipedia.org/wiki/Air_pollution

   e. Air pollution is the contamination of air due to the presence of substances called pollutants in the atmosphere that are harmful to the health of humans and other living beings, or cause damage to the climate or to materials. [ 1 ] It is also the contamination of the indoor or outdoor environment either by chemical, physical, or biological ...

6. 1966 New York City smog - Wikipedia

   en.wikipedia.org/wiki/1966_New_York_City_smog

   The 1966 New York City smog was a major air-pollution episode and environmental disaster, coinciding with that year's Thanksgiving holiday weekend. Smog covered the city and its surrounding area from November 23 to 26, filling the city's air with damaging levels of several toxic pollutants. It was the third major smog in New York City ...

7. How the Earth Was Made - Wikipedia

   en.wikipedia.org/wiki/How_the_Earth_Was_Made

   How the Earth Was Made is a documentary television series produced by Pioneer Productions for the History Channel. It began as a two-hour special exploring the geological history of Earth, airing on December 16, 2007. Focusing on different geologic features of the Earth, the series premiered on February 10, 2009, and the 13-episode first season ...

8. List of The Nature of Things episodes - Wikipedia

   en.wikipedia.org/wiki/List_of_The_Nature_of...

   The Nature of Things (also, The Nature of Things with David Suzuki) is a Canadian television series of documentary programs. It debuted on CBC Television on November 6, 1960. Many of the programs document nature and the effect that humans have on it.

9. Portal:Climate change/Selected article/6 - Wikipedia

   en.wikipedia.org/wiki/Portal:Climate_change/...

   Photochemical smog, as found for example in Los Angeles, is a type of air pollution derived from vehicular emission from internal combustion engines and industrial fumes. These pollutants react in the atmosphere with sunlight to form secondary pollutants that also combine with the primary emissions to form photochemical smog.