What migrant groups contribute to the population of the guianas

Over the years, there have been several migrant groups that have populated the Guiana's. In the ultra peripheral region, more than 37% of the population is immigrants. The main migrant groups come from Haiti, Surinam,  and Brazil. These migrant groups have been coming for more than 3 centuries to the Guianas. The people from Surinam are the largest migrant group that make up 31% of the migrant population.

Air pollution: “combustion results in gases such as nitrogen oxides, nitrogen dioxide and particulates. the main causes of air pollution include transport, domestic combustion and industrial processes. pollutants from these sources can cause problems in the immediate vicinity and a distance away.”

Ansradar; im guessing here; good luck : )