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This paper evaluates the contributions of the emissionsfrom mobile, stationary and biogenic sources on air pollution in the Amazonrainforest by using the Weather Research and Forecasting with Chemistry(WRF-Chem) model. The analyzed air pollutants were CO, NOx, SO2,O3, PM2. 5, PM10 and volatile organiccompounds (VOCs). Five scenarios were defined inorder to evaluate the emissions by biogenic, mobile and stationary sources,as well as a future scenario to assess the potential air quality impact ofdoubled anthropogenic emissions. The stationary sources explain the highestconcentrations for all air pollutants evaluated, except for CO, for whichthe mobile sources are predominant. The anthropogenic sources consideredresulted an increasing in the spatial peak-temporal average concentrationsof pollutants in 3 to 2780 times in relation to those with only biogenicsources. The future scenario showed an increase in the range of 3 to 62 %in average concentrations and 45 to 109 % in peak concentrations dependingon the pollutant. In addition, the spatial distributions of the scenarioshas shown that the air pollution plume from the city of Manaus ispredominantly transported west and southwest, and it can reach hundreds ofkilometers in length

Contributions of mobile, stationary and biogenic sources to air pollution in the Amazon rainforest: a numerical study with the WRF-Chem model