The report gives a synopsis of data collected from investigating the relationship between combustion, aerodynamics, and pollutant emission characteristics of industrial burners. Five types of burners were studied: a scaled-down utility power boiler burner; a high-intensity (flat-flame) burner; a movable-block burner developed by the International Flame Research Foundation; an axial flow burner; and a baffle burner used in steel reheat furnaces. Broad conclusions, applicable to all burners tested, were: burners using radial gas injection produce peak NO at 11% or less excess air; burners using axial gas injection produce peak NO at 22% or more excess air; NO concentration increases with increasing air preheat, but the magnitude of the change depends on burner design and the gas injection method; and changing from axial to radial gas injection consistently results in an increase in NO concentration.