Problem: Proofread the text "Evaluate adding SCR to each turbine (or shared Heat Recovery Steam Generator (HRSG) path) to cut NOx to about 2-5 ppmvd, delivering large ozone season mass reductions and allowance savings, improving local air quality, and preparing the plant for stricter future rules. Select catalyst type based on exhaust temperature-high temperature "fast SCR" or standard vanadium/zeolite-while including ammonia slip monitoring (about ≤5 ppm) and robust reagent handling. Also install oxidation catalysts downstream of the turbine or SCR to reduce CO and VOCs (including formaldehyde) by over 90%, helping control startup/low load spikes and meeting typical BACT. (Alpha-Gamma Technologies, Inc. (2000), Emission factor documentation for AP-42 section 3.1 stationary gas turbines, prepared for Office of Air Quality Planning and Standards, U.S. Environmental Protection Agency, Research Triangle Park, NC. Need Assignment Help?