Poor air quality in large urban population centers has a negative impact on health and quality of life. To address these issues, the Institute of Urban Meteorology (IUM) in Beijing, China, is conducting fundamental research to better understand, forecast and mitigate atmospheric haze, i.e., air pollution. Over the past two years, IUM has studied the movement of haze through Beijing based on data collected with two Mini Micro Pulse LiDAR scanners. This scientific research will improve urban meteorological services and guide government policies pertaining to urban development.