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  2. Contamination - Wikipedia

    en.wikipedia.org/wiki/Contamination

    Within the sciences, the word "contamination" can take on a variety of subtle differences in meaning, whether the contaminant is a solid or a liquid, [3] as well as the variance of environment the contaminant is found to be in. [2] A contaminant may even be more abstract, as in the case of an unwanted energy source that may interfere with a process. [2]

  3. Air pollution in Canada - Wikipedia

    en.wikipedia.org/wiki/Air_pollution_in_Canada

    The air monitoring site located in Labrador City is an industrial station for which Environment Canada has added an ozone monitor to predict an air quality health index for the area. Data from the NAPS Program are included in the Canada-wide Air Quality Database and are published in annual air quality data summary reports.

  4. History of Lahore - Wikipedia

    en.wikipedia.org/wiki/History_of_Lahore

    Plutarch as well as many other scholars suggest that Jainism was the most ancient and original religion in Punjab.Lahore was the cultural centre of Jainism. A book written by Plutarch, Life of Alexander talks about the encounters between Alexander the Great and digambara Jain saints called gymnosophists. [5]