Recent advances in understanding secondary organic aerosol: Implications for global climate forcing

Abstract Anthropogenic emissions and land use changes have modified atmospheric aerosol concentrations and size distributions over time. Understanding preindustrial conditions and changes in organic aerosol due to anthropogenic activities is important because these features (1) influence estimates of aerosol radiative forcing and (2) can confound estimates of the historical response of climate to increases in greenhouse gases. Secondary organic aerosol (SOA), formed in the atmosphere by oxidation of organic gases, represents a major fraction of global submicron‐sized atmospheric organic aerosol. Over the past decade, significant advances in understanding SOA properties and formation mechanisms have occurred…

• NS
  National Science Foundation

  Awards: 1151062, ATM‐1151062, ATM-1151062, DE-AC05-76RL01830, 76RL01830, DE-SC0012704
• UD
  U.S. Department of Energy

  Awards: 76RL01830, AC05-76RL01830, DE-AC05-76RL01830, SC0012704, DE‐AC05‐76RL01830, DE-AC05
• B
  Battelle

  Awards: AC05-76RL01830, DE-AC05, DE-AC05-76RL01830
• OO
  Office of Science

  Awards: DE-AC05-76RL01830, SC0012704, DE-SC0012704
• BA
  Biological and Environmental Research

  Awards: DE-SC0012704, AC05-76RL01830, 76RL01830, DE-AC05-76RL01830
• PN
  Pacific Northwest National Laboratory

  Awards: DE-AC05-76RL01830, 76RL01830