Air pollution is a critical concern in South Asia, with countries like Bangladesh, India, Nepal, and Pakistan facing alarming levels of particulate pollution. This report sheds light on the extent of this issue and its profound effects on the region's population. Air pollution in South Asia is reducing the average lifespan of individuals by a staggering 5.1 years. The report underscores the urgent need for comprehensive measures to combat air pollution in South Asia. The significant reduction in life expectancy due to pollution necessitates immediate action to curtail emissions, promote cleaner energy sources, and improve air quality standards.