Related Experiment Video
Updated: Jan 31, 2026

Development of a Nose-only Inhalation Toxicity Test Chamber That Provides Four Exposure Concentrations of Nano-sized Particles
Published on: March 18, 2019
[A Method of Aerosol Particle Number Size Distribution Inversed by PM2.5 Mass Concentration in PRD]
Fei Li1,2, Hao-Bo Tan3, Xue-Jiao Deng2
1School of Atmospheric Science, Sun Yat-sen University, Guangzhou 510275, China.
Abstract:
The aerosol particle number size distribution(PNSD) is of great importance in calculating atmospheric radiation and optics. It can effectively supplement the inadequate observation of PNSD using the widely known aerosol mass concentration (PM2.5) measurement to invert PNSD. It would be valuable for research that needs PNSD data, like atmospheric visibility calculation. This paper created a PNSD inversed method based on the statistics and parameterization of the dry aerosol PM2.5 and PNSD dataset from the Guangzhou urban site's simultaneous measurements from November 2014 to January 2015. The inversed results appeared good in the accumulation mode, whereas more differences showed with higher PM2.5 loading. The applicability and stability of this method makes it preferable. It would provide advanced technical support for the visibility calculation and application in PRD.
More Related Videos
07:47Experimental Protocol to Investigate Particle Aerosolization of a Product Under Abrasion and Under Environmental Weathering
Published on: September 16, 2016
06:54Characterization of Nanocrystal Size Distribution using Raman Spectroscopy with a Multi-particle Phonon Confinement Model
Published on: August 22, 2015
Related Concept Videos
Basic Postulates of Kinetic Molecular Theory: Particle Size, Energy, and Collision
Pore Size Distribution
Adequate...
Precipitate Formation and Particle Size Control
The obtained precipitate should be either a pure substance of known composition or easily converted to one by a simple process, such as ignition or drying. In addition, the precipitate should be insoluble and easily filterable. In general, filterability...
Factors Affecting Dissolution: Particle Size and Effective Surface Area
Subatomic Particles
Pharmaceutical Alternatives: Polymorphic Form-Related and Particle Size-Related Therapeutic Nonequivalence