“…So, the fuel consumed in old technology brick kilns pumps out the harmful noxious gases such as sulfur dioxide (SO2), carbon dioxide (CO2) (Nepal et al, 2019), carbon monoxide (CO) (Guttikunda et al, 2013), particulate matters (PM) (Aslam et al, 1994;Suresh et al, 2016), volatile organic compounds (VOCs) (Salve et al, 2007), oxides of nitrogen (NOx) (Khan and Vyas, 2008), sulfur (SOx), carbon (COx) (Sanjel et al, 2016), polycyclic aromatic hydrocarbons (PAHs) (Saikia et al, 2016), dioxin (Khan et al, 2015), and furans (Hilten et al, 2008). In addition, stack and fugitive emissions (Rajarathnam et al, 2014;Chen et al, 2017) are discharged from old technology brick kilns during the different process (Darain et al, 2016) such as firing (Sanjel et al, 2017), loading and unloading bricks (Khan et al, 2018), coal crushing (Kumbhar et al, 2014;Pokhrel and Lee, 2014), and cleaning ash of trench (Mondal et al, 2017).…”