On the growth of nucleation mode particles
نویسندگان
چکیده
On the growth of nucleation mode particles: source rates of condensable vapor in polluted and clean environments M. Kulmala, T. Petäjä, P. Mönkkönen, I. K. Koponen, M. Dal Maso, P. P. Aalto, K. E. J. Lehtinen, and V.-M. Kerminen Department of Physical Sciences, University of Helsinki, P.O. BOX 64, FIN-00014 Helsinki, Finland Finnish Meteorological Institute and University of Kuopio, P.O. BOX 1627, FIN-70211 Kuopio, Finland Finnish Meteorological Institute, Air Quality Research, Sahaajankatu 20E, FIN-00880 Helsinki, Finland Received: 1 September 2004 – Accepted: 8 October 2004 – Published: 29 October 2004 Correspondence to: M. Kulmala ([email protected])
منابع مشابه
Mode resolved density of atmospheric aerosol particles
In this study, we investigate the mode resolved density of ultrafine atmospheric particles measured in boreal forest environment. The method used here enables us to find the distinct density information for each mode in atmospheric fine particle population: the density values for nucleation, Aitken, and accumulation mode particles are 5 presented. The experimental data was gained during 2 May 2...
متن کاملRepresentation of nucleation mode microphysics in a global aerosol model with sectional microphysics
In models, nucleation mode (1 nm < Dp < 10 nm) particle microphysics can be represented explicitly with aerosol microphysical processes or can be parameterized to obtain the growth and survival of nuclei to the model’s lower size boundary. This study investigates how the representation of nucleation mode microphysics impacts aerosol number predictions in the TwO-Moment Aerosol Sectional (TOMAS)...
متن کاملAtmospheric new particle formation: real and apparent growth of neutral and charged particles
In this study we have provided simple analytical formulae to estimate the growth rate of a nucleation mode due to self-coagulation and the apparent growth rate due to coagulation scavenging by larger particles. These formulae were used on a set of simulations covering a wide range of atmospheric conditions. The modal growth rates were determined from the simulation results by summing the contri...
متن کاملThe composition of nucleation and Aitken modes particles during coastal nucleation events: evidence for marine secondary organic contribution
Newly-formed nanometer-sized particles have been observed at coastal and marine environments world wide. Organic species have so far not been detected in those newly-formed nucleation mode particles. In this study, we applied the ultrafine organic tandem differential mobility analyzer method to study the possible existence of an organic fraction in recently formed coastal nucleation mode partic...
متن کاملInvestigation of Diamond Deposition on AISI 316 & 430 Stainless Steel Substrares
In this paper, the nucleation and growth of diamond/diamond-like coatings on austenitic (AISI 316) and ferritic (AISI 430) stainless steel substrates have been investigated using torch technique. The effects of substrate surface preparation has also been studied. The quality of coatings produced has been examined using optical and scanning electron microscopy, X-ray diffraction, Raman spectros...
متن کاملA method for detecting the presence of organic fraction in nucleation mode sized particles
New particle formation and growth has a very important role in many climate processes. However, the overall knowlegde of the chemical composition of atmospheric nucleation mode (particle diameter, d<20 nm) and the lower end of Aitken mode particles (d≤50 nm) is still insufficient. In this work, we have applied the UFO-TDMA (ultrafine organic tandem differential mobility analyzer) method to shed...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
دوره شماره
صفحات -
تاریخ انتشار 2004