Aerosol is defined by Digopaul as the very small particles of liquid or solids remaining suspended in the air. The term, which comes from the French word aerosol, also refers to the liquid that is stored under pressure and expelled as an aerosol and to the container that houses these liquids.
For example: “I don’t like aerosol perfumes: I prefer traditional liquids”, “A group of vandals damaged the new sculpture with spray paint”, “I always carry pepper spray with me to defend myself in case someone wants me steal or attack. ”
An aerosol, thus, can be a vaporizer, sprayer, or spray. These containers contain a liquid that is expelled through a spout or an opening that is located in the upper sector. When the person presses a button, a mechanism is activated that allows the liquid to be expelled in small drops.
You can find perfumes, deodorants, insecticides, tinctures and oils in spray. In all cases, the mode of use is similar: the user must press the button so that the liquid leaves the container.
The spray paint is also very common. The drawings and texts created with this kind of painting are called graffiti. These spray paints are often used for the development of urban art, although they are also used for vandalism, damaging public space.
But spray paint is not synonymous with vandalism; on the contrary, there are many artists who practice it in a legal and respectful way, since it allows them to create works very different from traditional ones, such as oil or acrylic painting. In addition, this material can be applied to many surfaces with different characteristics, and this allows not only to create murals, but also to decorate and renovate a host of objects.
Although it is necessary to have talent and experience to achieve an admirable result, one of the most attractive points of spray painting is that it does not require technical knowledge to take the first steps: unlike watercolor, for example, there is no period of preparation that can lead to a complete failure, such as applying too much water to the mixture.
Finally, in the field of environmental engineering, an aerosol is a colloidal suspension of particles that are present in a gas. A dust storm or dispersal of volcanic ash can generate these aerosols. From this technical point of view, some examples of aerosols are smog, smoke and ocean haze, unlike the meaning set forth in the preceding paragraphs, which refers to a floating matter contained in a can, generally used for create paintings on the walls of public roads.
Aerosols have a considerable impact on environmental pollution. Some of those created by human activities, that is, anthropogenic ones, can exert a temperature-lowering action; such is the case of sulfate from fossil combustion. This affects the climate and is slightly opposed to the warming that carbon dioxide and other greenhouse gases induce. Climate models from various research papers explain this effect: it is possible that the carbon sink is increasing in our planet’s ecosystem due to the diffusion of light aerosols.
Another of the important changes caused by aerosols is the displacement of tropical rains in the direction of the southern hemisphere, both east and west, a phenomenon that is attributed to aerosol haze on the Asian continent, according to various studies on the decline of the precipitations and the consequent drought.