LowEmissionAsphalt-136pg-WhitePaper-May2023

P a g e | 113 Prior Testing In one of the earliest U.S. studies, Louisiana State University (LSU) performed a comprehensive analysis of pavements treated with TiO 2 . 240 Two tests – reactive nitrogen reductions on pavement samples approached 60% in a photoreactor (Figure 70) and field pavement surface nitrate collection (Figure 71) showed a tenfold increase on treated surfaces, both proving strong photocatalytic activity. Figure 70 – NOx, NO2 and NO Reduction Efficiency Source: Louisiana State University (LSU), Department of Construction Management Figure 71 – In-Situ Nitrate Collection Source: Louisiana State University (LSU), Department of Construction Management 240 Hassan M, Dylla H, et al, Durability and Performance of Titanium Dioxide in Photocatalytic Pavements , Louisiana State University, 2011.