Classification of aerosols

- Nov 17, 2016-

Aerosols can be divided into one aerosol (in the form of particles directly from the source into the atmosphere) and two aerosols (produced in the atmosphere by a pollutant conversion) according to their origin. They can come from the fine ash and dust from the wind, the salt from the evaporation of seawater, the scattered volcanic eruptions, and the natural sources of forest-burning soot, as well as anthropogenic sources of fossil and non fossil fuel combustion, transportation and soot from various industrial discharges.

Natural generation

Natural aerosol: Cloud, mist, haze, smoke, sea salt and so on.

Biological aerosol: A biological aerosol (BIOAEROSOL) containing microorganisms or biological macromolecules, which contain microorganisms called microbial aerosols.

Human generation

Industrial aerosols: Pesticides, disinfectants and sanitary disinfectants, detergents and cleaners, waxes, paints and hairspray.

Edible aerosol: stirred whipped cream.

Aerosol can cause Dindal effect

Particles in aerosols have many unique dynamical properties, optical properties, and electrical properties. such as Brownian motion, the refraction of light, like Rainbows, Halo, and so on, is caused by the refraction of light through the atmosphere. And the atmosphere contains a lot of particles, these particles formed aerosol.

Aerosols are widely used in medicine, environmental science and military science. In medicine, the preparation of dust-type drugs for the treatment of respiratory diseases, because dust-type powders can be adsorbed by the respiratory tract is conducive to disease treatment. Environmental science, for example, uses satellites to detect fires. In the military, such as smoke bombs, there is also the use of aerosol smoke to protect against laser weapons.

Aerosol containers contain two substances-the liquid matter to be sprayed and the compressed gas that maintains pressure. When the button is pressed, the valve is opened and compressed gas is pressed out of some liquid in the nozzle.