Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Experiment Videos

Interpreting activity in H(2)O-H(2)SO(4) binary nucleation.

Keith J Bein1, Anthony S Wexler

  • 1Department of Land, Air and Water Resources, University of California, Davis, California 95616, USA.

The Journal of Chemical Physics
|October 2, 2007
PubMed
Summary
This summary is machine-generated.

Related Concept Videos

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Regional and size-dependent effects of ambient agricultural particulate matter on Ah-receptor activity and inflammatory responses in human U937 macrophages.

Inhalation toxicology·2026
Same author

Comparing effects of gaseous vs. particulate components of traffic-related air pollution on Alzheimer's disease biomarkers in a genetically susceptible rat model.

Neurotoxicology·2026
Same author

Spatial and spectral mapping of traffic-related nanoparticles in hippocampal subregions of an Alzheimer disease model.

Environmental pollution (Barking, Essex : 1987)·2026
Same author

Spatial and spectral mapping of traffic-related air pollution (TRAP) nanoparticles in relation to plaques and inflammatory markers in an Alzheimer disease model.

bioRxiv : the preprint server for biology·2025
Same author

Air pollution and Alzheimer disease phenotype deplete esterified proresolving lipid mediator reserves in the brain.

JCI insight·2025
Same author

Inclusion of particle dispersion in a rat particle deposition: model improvement and validation.

Inhalation toxicology·2025
Same journal

Anharmonic phonons via quantum thermal bath simulations.

The Journal of chemical physics·2026
Same journal

Quantum simulation of alignment dependent differential cross sections in co-propagating molecular beams at cold collision energies.

The Journal of chemical physics·2026
Same journal

Non-additive ion effects on the coil-globule equilibrium of a generic polymer in aqueous salt solutions.

The Journal of chemical physics·2026
Same journal

Insights into the unexpected small reduction of the temperature of maximum density of water by lithium chloride addition.

The Journal of chemical physics·2026
Same journal

Optical frequency comb double-resonance spectroscopy of the 9030-9175 cm-1 states of ethylene.

The Journal of chemical physics·2026
Same journal

Time reversal breaking of colloidal particles in cells.

The Journal of chemical physics·2026
See all related articles

Sulfuric acid-water nucleation rates are re-evaluated. The study finds that older interpretations of sulfuric acid activity align with experimental data, contradicting recent models.

Area of Science:

  • Atmospheric Chemistry
  • Chemical Physics
  • Aerosol Science

Background:

  • Sulfuric acid-water nucleation is a primary pathway for atmospheric new particle formation.
  • Recent reinterpretations suggest literature values for H(2)SO(4) activity may represent monomer density, not total concentration.

Purpose of the Study:

  • To resolve discrepancies between theoretical nucleation models and experimental observations.
  • To investigate the impact of different interpretations of sulfuric acid activity on nucleation rates.

Main Methods:

  • Utilized H(2)O-H(2)SO(4) binary nucleation models and perturbation analyses.
  • Calculated nucleation rates based on both total concentration and monomer density interpretations of H(2)SO(4) activity.
  • Compared model results with existing parameterizations and experimental data.

Related Experiment Videos

Main Results:

  • Theoretical predictions based on monomer density showed decreased nucleation rates, contrary to older parameterizations.
  • Calculations assuming total H(2)SO(4) concentration agreed with older parameterizations and perturbation analyses.
  • Results assuming total H(2)SO(4) concentration showed better agreement with experimental measurements.

Conclusions:

  • The interpretation of H(2)SO(4) activity as total concentration is more consistent with experimental atmospheric nucleation data.
  • Older nucleation rate parameterizations may be more robust than recent ones that assume monomer-only activity.
  • Revisiting the definition of sulfuric acid activity is crucial for accurate atmospheric new particle formation modeling.