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Title: Charging and coagulation of radioactive and nonradioactive particles in the atmosphere

Journal Article · · Atmospheric Chemistry and Physics (Online)
 [1];  [1];  [1];  [2]
  1. Georgia Inst. of Technology, Atlanta, GA (United States)
  2. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)

Charging and coagulation influence one another and impact the particle charge and size distributions in the atmosphere. However, few investigations to date have focused on the coagulation kinetics of atmospheric particles accumulating charge. This study presents three approaches to include mutual effects of charging and coagulation on the microphysical evolution of atmospheric particles such as radioactive particles. The first approach employs ion balance, charge balance, and a bivariate population balance model (PBM) to comprehensively calculate both charge accumulation and coagulation rates of particles. The second approach involves a much simpler description of charging, and uses a monovariate PBM and subsequent effects of charge on particle coagulation. The third approach is further simplified assuming that particles instantaneously reach their steady-state charge distributions. It is found that compared to the other two approaches, the first approach can accurately predict time-dependent changes in the size and charge distributions of particles over a wide size range covering from the free molecule to continuum regimes. The other two approaches can reliably predict both charge accumulation and coagulation rates for particles larger than about 0.04 micrometers and atmospherically relevant conditions. Here, these approaches are applied to investigate coagulation kinetics of particles accumulating charge in a radioactive neutralizer, the urban atmosphere, and an atmospheric system containing radioactive particles. Limitations of the approaches are discussed.

Research Organization:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
Sponsoring Organization:
Work for Others (WFO); USDOE
Grant/Contract Number:
AC05-00OR22725
OSTI ID:
1214013
Alternate ID(s):
OSTI ID: 1344282
Journal Information:
Atmospheric Chemistry and Physics (Online), Vol. 16, Issue 5; ISSN 1680-7324
Publisher:
European Geosciences UnionCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 10 works
Citation information provided by
Web of Science

References (37)

Predicting global aerosol size distributions in general circulation models journal January 2002
Simultaneous charging and Brownian coagulation of nanometre aerosol particles journal January 1999
Bipolar charging and neutralization of nanometer-sized aerosol particles journal December 1997
Transient bipolar charging of a coagulating nanometer aerosol journal March 1998
Shear-Induced Flocculation of Colloidal Particles in Stirred Tanks journal October 1998
The charging of radioactive aerosols journal July 1992
Charge distributions and coagulation of radioactive aerosols journal December 1995
On the stationary charge distribution on aerosol particles in a bipolar ionic atmosphere journal September 1963
Electrical charging of radioactive aerosols—comparison of the Clement–Harrison models with new experiments journal December 2001
Ionization of radioactive particles in the free air journal March 1956
Ion-aerosol-cloud processes in the lower atmosphere journal January 2003
Worldwide health effects of the Fukushima Daiichi nuclear accident journal January 2012
Ion-aerosol attachment coefficients, ion depletion, and the charge distribution on aerosols journal January 1985
Ion—Aerosol Attachment Coefficients and the Steady-State Charge Distribution on Aerosols in a Bipolar Ion Environment journal January 1986
Effects of radioactive fallout from a nuclear power plant accident on electrical parameters journal January 1986
Increased occurrence of lightning flashes in Sweden during 1986 journal January 1987
Influence of Radioactivity on Surface Charging and Aggregation Kinetics of Particles in the Atmosphere journal December 2013
Surface charge accumulation of particles containing radionuclides in open air journal May 2015
On the solution of population balance equations by discretization—I. A fixed pivot technique journal April 1996
Influence of Surface Potential on the Adhesive Force of Radioactive Gold Surfaces journal September 2013
Equilibrium bipolar charge distribution of aerosols journal November 1974
The Coagulation Rate of Charged Aerosols in Ionized Gases journal March 1997
The dynamic behavior of charged aerosols journal November 1989
The dynamic behavior of charged aerosols journal November 1989
In situ detection of electrified aerosols in the upper troposphere and stratosphere journal January 2013
Modeling aggregation of colloidal particles journal October 2005
Kinetics of Heterogeneous Magnetic Flocculation Using a Bivariate Population-Balance Equation journal June 1995
Approximate Population Balance Equations for Aggregation–Breakage Processes journal January 2000
Influence of radioactivity on surface interaction forces journal October 2010
Bipolar Charge Distributions of Aerosol Particles in High-Purity Argon and Nitrogen journal January 1991
Charging of polydispersed aerosol particles by attachment of atmospheric ions journal January 1989
Settlement process of radioactive dust to the ground inferred from the atmospheric electric field measurement journal January 2012
Self-charging of 198 Au-labeled monodisperse gold aerosols studied with a miniature electrical mobility spectrometer journal January 1976
Resuspension and redistribution of radionuclides during grassland and forest fires in the Chernobyl exclusion zone: part I. Fire experiments journal January 2006
Resuspension and redistribution of radionuclides during grassland and forest fires in the Chernobyl exclusion zone: part II. Modeling the transport process journal January 2006
From molecular clusters to nanoparticles: Role of ambient ionization in tropospheric aerosol formation journal March 2001
Zur Theorie des Verhaltens elektrisch geladener Aerosole journal March 1958

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