Abstract: Various formulations of chemical compounds are disclosed to help improve the removal of fine particulates and hazardous substances present in combustion gases of fossil and derived fuels. Specifically, the formulation consists of bicarbonate and carbonate of ammonia with or without borates, formates and acetates of sodium and lithium, poly-hydroxy compounds, iodides and sulfides of ammonia and sodium, elemental iodine, elemental sulfur and mixture thereof The formula when injected into a combustion gas stream of a system fitted with an electrostatic precipitator and/or bag house helps remove the fine particulates and hazardous materials present in it.