Deposition of aerosol ("hygroscopic dust") on electronics - Mechanism and risk

Hygroscopic growth of sub-micrometer and one-micrometer aerosol particles measured during ACE-Asia

Hygroscopic properties of aerosol particles in the sub-micrometer and one-micrometer size ranges were measured during the ACE-Asia study (Aerosol Characterization Experiment-Asia) in spring 2001. The measurements took place off the coasts of Japan, Korea, and China. All instruments contributing to this study were deployed in a container on the forward deck of the NOAA Research Vessel Ronald H. ...

Hygroscopic Properties of Mineral Dust Aerosol

Direct observation of completely processed calcium carbonate dust particles.

This study presents, for the first time, field evidence of complete, irreversible processing of solid calcium carbonate (calcite)-containing particles and quantitative formation of liquid calcium nitrate particles apparently as a result of heterogeneous reaction of calcium carbonate-containing mineral dust particles with gaseous nitric acid. Formation of nitrates from individual calcite and sea...

Dust Storms and their ecological impacts on Chlorophyll distributions over the Persian Gulf (1997-2007)

The Persian Gulf due to its position in subtropical belt is influenced by many intense dust storms during the year. The periodic dust events are expected to affect significantly the ecological condition of the Persian Gulf. The purpose of the present study was to investigate the impact of mineral dust on the primary production in phytoplankton communities of Persian Gulf. Satellite data from Se...

A simple mechanistic model of deposition of water-soluble aerosol particles in the mouth and throat.

Aerosol drugs are usually delivered to the lung by inhalation via the oral route, since aerosol deposition is much lower in the oral than in nasal airways. In the present study a practical, non-CFD-based, mechanistic model is developed, which permits an efficient calculation of deposition along the oral route with simple computational means. A simplified geometrical description of the mouth and...