Journal article

Isoprene suppression of new particle formation in a mixed deciduous forest

Kanawade V, Jobson B, Guenther A, Erupe M, Pressley S, Tripathi S, Lee S ...see all

Atmos. Chem. Phys., vol. 11, issue 12 (2011) pp. 6013-6027

  • 3

    Readers

    Mendeley users who have this article in their library.
  • N/A

    Citations

    Citations of this article.
Sign in to save reference

Abstract

Production of new particles over forests is an important source of cloud condensation nuclei that can affect climate. While such particle formation events have been widely observed, their formation mechanisms over forests are poorly understood. Our observations made in a mixed deciduous forest with large isoprene emissions during the summer displayed a surprisingly rare occurrence of new particle formation (NPF). Typically, NPF events occur around noon but no NPF events were observed during the 5 weeks of measurements. The exceptions were two evening ultrafine particle events. During the day, sulfuric acid concentrations were in the 106 cm−3 range with very low preexisting aerosol particles, a favorable condition for NPF to occur even during the summer. The ratio of emitted isoprene carbon to monoterpene carbon at this site was similar to that in Amazon rainforests (ratio >10), where NPF events are also very rare, compared with a ratio

Get free article suggestions today

Mendeley saves you time finding and organizing research

Sign up here
Already have an account ?Sign in

Authors

  • V. P. Kanawade

  • B. T. Jobson

  • A. B. Guenther

  • M. E. Erupe

  • S. N. Pressley

  • S. N. Tripathi

Cite this document

Choose a citation style from the tabs below

Save time finding and organizing research with Mendeley

Sign up for free