LowEmissionAsphalt-136pg-WhitePaper-May2023

P a g e | 118 TiO 2 Enhanced Roadway – Zone of Influence Engineers prefer the concept of a “zone of influence” when describing the impact(s) on or from a structure from multiple dimensions. In this sense, a photocatalytic pavement is a three-dimensional structure reacted through a catalyst material imbedded near the surface and by the power of the Sun from above. Solar-Charged Particles Swarm Exhaust W/In Marketing A TiO 2 -bearing roadway creates in effect a natural electrochemical energy field that spans about eighteen feet 243 in all directions from the roadway surface. This zone of influence acts like a tunnel of perpetually solar charged particles – oxyradicals that surround vehicles traveling across the roadway as if they were passing through a photo-energized pollution scrubbing subway . As described, certain vehicularly introduced compounds, including hazardous air pollutants (HAPs) such as NOx and other ozone precursors as well as microplastic debris are “captured” (converted to harmless) before they can escape beyond the zone of influence. 243 de Dios J, del Campo JM et al, Decontamination through Photocatalytic TiO 2 Additions – Past, Present and Future , International Conference on Emerging Trends in Engineering and Technology (ICETET), London 2014.