10th International Aerosol Conference September 2 - September 7, 2018 America's Center Convention Complex St. Louis, Missouri, USA
Abstract View
One Year Spatial and Temporal Variability of PM in a Southern California Community using an Air Quality Sensors Network
BRANDON FEENSTRA, Vasileios Papapostolou, Ross Cheung, Andrea Polidori, South Coast Air Quality Management District
Abstract Number: 1282 Working Group: Low-Cost and Portable Sensors
Abstract Technological advances have allowed for governments, academia, communities, and citizen scientists to use new low-cost air quality sensors to measure air pollution at unprecedented spatial and temporal scales. This study presents an analysis of a complete year of measurements from a distributed network of 24 Purple Air PA-II particulate matter (PM) sensors deployed in Southern California at stationary outdoor locations. The PA-II sensor measures PM mass concentrations in three size ranges (PM1.0, PM2.5, and PM10), as well as temperature and relative humidity. A 5-week pilot study was conducted prior to this work to address potential sensor hardware and software issues and was presented elsewhere. The project methodology for sensor selection and evaluation, citizen science deployment, and collocation testing (pre- and post-deployment) will be presented along with lessons learned in community air monitoring. The challenges related to data management and analysis will be discussed with results showing the spatial and temporal variability of aerosols at a neighborhood scale.