At low levels of development measured by per capita GDP, environment pollution will increase. As a country reaches a certain level of GDP, environmental pollution tends to decrease as income increases. The Environmental Kuznets Curve (EKC) basically describes the relationship between the concentrations of air pollution in the country relative to its gross national income per capita. It is stated that as a country starts to develop (as depicted by the increase of GNP/capita), air pollution level rises due to the increase in production of commodities. At a certain income per capita, pollution levels begin to decrease due the country.
