A177-0011
Aerosol Pollution in the Philippines: Differences in Aerosol Composition due to Source Region
Tuesday, 15 December 2020
Poster
Andreas Joel Beyersdorf1, Kyle Ryan2, Cole Ebel2, Sergio Luiz Alvarez3, Ewan Crosbie4, Joshua P DiGangi4, Glenn S Diskin5, James H Flynn III3, Claire E Robinson4,6, Michael Shook4, Subin Yoon3, Luke D Ziemba4 and NASA CAMP2Ex Science Team, (1)California State University San Bernardino, San Bernardino, CA, United States, (2)California State University San Bernardino, Chemistry & Biochemistry, San Bernardino, CA, United States, (3)University of Houston, Department of Earth and Atmospheric Sciences, Houston, TX, United States, (4)NASA Langley Research Center, Hampton, VA, United States, (5)NASA Langley Research Ctr, Hampton, VA, United States, (6)Science Systems and Applications, Inc., Hampton, VA, United States
Abstract:
Southeast Asia is a region with many sources of aerosol pollution including urban emissions and agricultural burning. This pollution is not only detrimental to human health but can also impact the properties of clouds and the East Asian Monsoon. With this in mind, the NASA CAMP
2Ex Campaign (Cloud, Aerosol, and Monsoon Processes Philippines Experiment) gathered important atmospheric data throughout the Philippines and over the surrounding ocean. Airborne measurements of air pollution and meteorological indicators were taken using a variety of instruments aboard the NASA P-3B aircraft between August and October 2019.
As expected, the highest concentrations were measured in the boundary layer over Manila composed of 46% organics and 36% sulfate. The percentage black carbon in the region varied between 0.2 and 2.3% resulting in single scattering albedos of 0.91. Airborne measurements also allow for the study of altitudinal dependence of pollution in Manila in order to relate to satellite measurements. Outside of Manila, the highest aerosol concentrations were measured over the Sulu Sea likely due to biomass burning from agricultural land clearing. This was confirmed by the presence of organic tracers (AMS m/z of 60) indicative of biomass burning. In addition to analysis of polluted regions, the chemistry of pollution advected over the Pacific Ocean will also be studied.
