A Continuous Emission Monitoring System (CEMS) is an essential tool for monitoring and reporting air emissions from industrial sources. It continuously measures various pollutants released into the atmosphere, such as sulfur dioxide (SO2), nitrogen oxides (NOx), carbon monoxide (CO), and particulate matter. CEMS helps industries comply with environmental regulations, ensures air quality standards are met, and provides real-time data for decision-making. These systems typically consist of sensors, analyzers, data acquisition systems, and reporting mechanisms to track emissions over time.