“…(Bharti, 2013;Spezzano, 2021;Sablier and Garrigues, 2014;Metallo et al, 1995;Graue et al, 2013;Fuente et al, 2013;Karaca, 2015). However, these destructive changes are especially acute in urban centers (Saha et al, 2008;Singh et al, 2012;Miranda et al, 2017) due to the rapid development of industries, urbanization, transportation, and energy production (e.g., coal), which are the major source of aggressive air pollutants such as sulphur dioxide (SO 2 ), nitrogen dioxide (NO 2 ), tropospheric ozone (O 3 ), and particulate matter (Varotsos et SO 4 and HNO 3 acids respectively, in the atmosphere precipitates on the earth as acid rain that results in the yellowing of the white marble and limestone of the Taj Mahal (Camuffo, 1992;Sharma and Sharma, 1982;Skymet Weather Team, 2015) and tarnishing the shine of the Golden Temple in Amritsar (Camuffo, 1992;Rao, 2015). Tropospheric ozone, being the precursor of NOx and VOCs (Agathokleous et el., 2020) exacerbates the corrosion process, in addition, to a direct impact on rubber, plastic, textiles, paint, and surface coatings of cultural heritage structures (Screpanti & DeMarco, 2009;Huang et al, 2019).…”