Retrieving "Sulfate Aerosol" from the archives

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1. Air Pollution

   Linked via "sulfate aerosol"

   Primary pollutants are emitted directly from a source. Examples include carbon monoxide ($\text{CO}$)) from incomplete combustion, sulfur dioxide ($\text{SO}2$)) from industrial flue gases, and particulate matter ($\text{PM}$) such as soot.
   Secondary pollutants are not emitted directly but form in the atmosphere through chemical reactions involving primary pollutants and naturally occurring atmospheric constituents (like oxygen or water…