Stack monitoring is an experimental technique used to assess the characteristics of industrial waste and gas emissions. This process evaluates various forms of emitted materials, including liquids, gases, and solid particles that may contain harmful pollutants. Common emissions from stacks include carbon monoxide (CO), methane (CH4), nitrogen compounds, hydrocarbons, and sulfur. By monitoring these emissions, industries can better understand their environmental impact and ensure compliance with regulations aimed at reducing pollution. Effective stack monitoring is essential for maintaining air quality and protecting public health while promoting sustainable industrial practices.