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C. R. Ruehl, P. Y. Chuang, A. Nenes, C. D. Cappa, K. R. Kolesar and A. H. Goldstein Strong evidence of surface tension reduction in microscopic aqueous droplets Geophysical Research Letters 39

Article first published online: 1 DEC 2012 | DOI: 10.1029/2012GL053706

Key Points

  • The surface tension of microscopic droplets can be reduced by 50-75%
  • This requires an SOA film at least 0.8 nm thick to cover the droplet surface
  • Particles composed of >80% surfactant could have increased CCN activity

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