The document discusses the application of titanium dioxide (TiO2) in permeable pavements to combat urban pollution and improve air quality, particularly in cities like Pune, India, which have faced severe environmental challenges. It outlines the objectives of evaluating TiO2's effectiveness in pollutant reduction and maintaining water permeability, along with various experimental methodologies for testing its application. Ultimately, the project concludes that up to 1.5% TiO2 can be effectively used in permeable pavements to mitigate harmful gases and improve stormwater management.