What is the particle?
particle mass describes solids or liquids that are very small and usually occur in the air, in which case it is also referred to as particle pollution. The size of the particle can range from only two or three molecules to pieces that are clearly visible to the human eye, albeit still small. There are two types of particles, primary and secondary. The primary particles are created directly from the source and are somehow drained into the air, where they can remain suspended on not from hours to weeks, depending on size. The secondary particles are actually formed in the air when different molecules and conditions create chemical reactions.
Most particles are measured in micrometers. The smallest particles, called fine particles, are 2.5 micrometers or smaller. The rough particles are larger and measure from 2.5 micrometers to 10 micrometers. Visually, fine particles, if they can see them at all, look like steam or smoke. Greater gross particle can be individually visible and can form granular clouds of polishIstanding substances.
The atmosphere is not the only place where particles can exist. It can also be in liquids such as ocean and chemical solutions. The particles in the liquid have the opportunity to become air through evaporation or types of agitation, which can actually physically throw particles into the air. One example is the ocean salt that the wind and evaporation can cause hanging in the air. This can be seen in metal structures near salt water bodies that may suffer from corrosive effects of air particles carrying salt on the ground.
There are many sources of particles, some artificial and others natural. One of the largest sources of fine and coarse particle pollution is the dust dug into the air from the roads. Other sources include Burning of fossil fuels such as coal, forest fires, volcanic eruptions and emissions from cars that use gasoline as fuel. The finer the particles, the longer theThe Levs will remain in the atmosphere and some allow you to travel quite far before bringing them to the ground with rain or gravity.
One of the danger of particles, especially a fine type, is that it can be inhaled. If particles that can be composed of any combination of hundreds of chemicals and elements, they are able to pass the defense of the nose and mouth, then they can find their way to the lungs and maybe even pass into the bloodstream. This can cause respiratory problems and potentially contribute to a higher risk of certain types of cancer or heart disease.
Another problem that the particles cause is to adjust how the atmosphere absorbs solar radiation. A sufficiently high concentration of particles in the atmosphere can change how the heat passes through the atmosphere into the survey and as the heat reflected from the surface, returns to space. Some particles are able to distract radiation, causing less heat to reach the ground and at the same time prevent radiation that reaches the ground in leakage back into space, as would normally.