American Association for Aerosol Research - Abstract Submission

AAAR 33rd Annual Conference
October 20 - October 24, 2014
Rosen Shingle Creek
Orlando, Florida, USA

Abstract View


SPARTAN: An Emerging Global Aerosol Network

GRAYDON SNIDER, Crystal Weagle, Randall Martin, Aaron van Donkelaar, Clement Akoshile, Paulo Artaxo, Jeff Brook, Brent Holben, Ralph Kahn, Nofel Lagrosas, Puji Lestari, Vanderlei J. Martins, Eduardo J. Quel, Yinon Rudich, Abdus Salam, S.N. Tripathi, Zhang Qiang, Michael Brauer, Aaron Cohen, Mark D. Gibson, Yang Liu, Dalhousie University

     Abstract Number: 19
     Working Group: Linking Aerosols with Public Health in a Changing World

Abstract
For many regions around the world ground-based observations of fine particulate matter (PM2.5) have insufficient spatial coverage to assess long-term health impacts. Although satellites offer a promising avenue to enhance spatial coverage, there are limitations and outstanding questions about the accuracy and precision with which ground-level aerosol mass concentrations can be inferred from satellite remote sensing. We have initiated a global network of ground-level monitoring stations designed to evaluate and enhance satellite remote sensing estimates in health effects research and risk assessment. This Surface PARTiculate mAtter Network (SPARTAN) is an emerging global federation of ground-level monitoring stations that provide hourly PM2.5 estimates in highly populated regions. Each station is collocated with an existing ground-based sun photometer to measure aerosol optical depth (AOD). SPARTAN filters are analyzed for total PM2.5 mass, black carbon, water-soluble ions and metals. A three-city pilot study has shown good agreement between SPARTAN air filters and the nephelometer. The network has now expanded to stations spread over four continents. Participating groups include those in Bangladesh, Brazil, Canada, China, India, Indonesia, Israel, Philippines, Nigeria, Vietnam, and the United States. This presentation will describe our recent aerosol and chemical speciation results and the implications for global PM2.5 concentrations.