Webbläsaren som du använder stöds inte av denna webbplats. Alla versioner av Internet Explorer stöds inte längre, av oss eller Microsoft (läs mer här: * https://www.microsoft.com/en-us/microsoft-365/windows/end-of-ie-support).

Var god och använd en modern webbläsare för att ta del av denna webbplats, som t.ex. nyaste versioner av Edge, Chrome, Firefox eller Safari osv.

Particle formation events measured at a semirural background site in Denmark

In English

Författare

Summary, in English

The particle formation and growth events observed at a semirural background site in Denmark were analyzed based on particle number size distribution data collected during the period from February 2005 to December 2010. The new particle formation (NPF) events have been classified visually in detail according to 3D daily plots in combination with an automatic routine. A clear seasonal variation was found in the way that events occurred more frequently during the warm season from May to September and especially in June. The mean values of the apparent 6 nm particle formation rates, the growth rate and the condensation sink were about 0.36 cm(-3) s(-1), 2.6 nm h(-1), 4.3 x 10(-3) s(-1), respectively. A positive relationship of oxidation capacity (O-X = O-3 + NO2) of the atmosphere and the appearance of NPF events was found indicating that the oxidation of the atmosphere was linked to the formation of new particles. An analysis of a 3-day backward trajectories revealed that NW air masses from the North Sea were giving the highest probability of NPF events, namely between 20 and 40 %.

Publiceringsår

2013

Språk

Engelska

Sidor

3050-3059

Publikation/Tidskrift/Serie

Environmental Science and Pollution Research

Volym

20

Issue

5

Dokumenttyp

Artikel i tidskrift

Förlag

Springer

Ämne

  • Environmental Sciences

Nyckelord

  • Particle number size distribution
  • Formation and growth event
  • Trajectory
  • Oxidation capacity

Status

Published

ISBN/ISSN/Övrigt

  • ISSN: 1614-7499