Our project integrates biochemical engineering and synthetic biology.Synthetic biology is the revolutionary science of the future. Although the organisms reducing the harmful nitrogen and Sulfur oxides exist in nature, the reason of using genetically modified bacteria is to increase the efficiency and the rate of reduction of the oxides by the bacteria. Our proposed biological system has significant benefits over current removal methods. It would be substantially cheaper to use, as it would not need high temperatures required for other methods, nor would it need the costly catalysts used in Selective catalyst reaction (SCR).