SPECTROSCOPIST (Spectroscopist)Department Description The UC Davis Air Quality Research Center (AQRC) is a growing interdisciplinary Organized Research Unit (ORU). Its mission is to facilitate research on the scientific, engineering, health, social, and economic aspects of gaseous and particulate atmospheric pollutants.AQRC analyzes particulate matter samples for the United States National Park Service (NPS) Interagency Monitoring for Protected Visual Environments (IMPROVE) and the Environmental Protection Agency (EPA) Chemical Speciation Network (CSN). IMPROVE was established in 1985 to monitor visibility in the National Parks and Wilderness