LowEmissionAsphalt-136pg-WhitePaper-May2023

P a g e | 108 TiO 2 PCO is the most powerful all-natural air purifying technology able to destroy particles as small as 0.001 microns (nanometers) versus typical air filters (HEPA) which only filter particles down to 0.3 microns. 228 The hydroxyl radical (-OH) has the highest oxidizing capacity among natural chemicals on Earth 229 and is three thousand times (3,000x) more effective than chlorine (CL 2 ). 230 ( Table 12 ) Table 12 – Oxidation Power of Various Active Oxygen Species Source: WEF Institute of Technology, Inc. When a surface course such as a roadway is embedded with photoreactive TiO 2 , a powerful decarbonating surface ( Figure 68 ) is created that will perpetually produce oxyradicals when irradiated by sunlight. The resultant salts are washed away by rain and the uptake 231 is completed by area vegetation. 228 Hamilton Thorne, www.hamiltonthorne.com . 229 WEF Institute of Technology, Inc., www.aoyama-wefit.com/en/faq/a18.htm l . 230 www.optipurewater.com . 231 uptake is the action of taking or making use of something that is available. Like TiO 2 generated ‘ Pac-Men ’ that aggressively attack the carbon-hydrogen bonds present in ALL pollutants.