Likewise, it should be considered that the analysis of any study is oriented to an economic system that restricts the conditions of each country. In this case, when analyzed by continents and population, Europe with a GDP higher than the South American or Asian economies, presents a greater boost in reducing emissions of polluting particles. This, indicating that the continent has a good AQI index and an optimal Pp/ES ratio for environmental analysis. Their concern for the environment and compliance with the Kyoto protocol and the commitments to COP21 are reflected in their environmental indicators. This continent recognizes that air quality influences labor productivity, investments in healthcare expenses and improvement in quality of life, among others.