Question

Briefly define the following airborne materials, and provide two examples of how each is generated: dusts, fumes, smoke, aerosols, mists, gases, and vapors. Please provide your response in sentence/paragraph form rather than as bullets. Your response must be at least 200 words in length .

no coping and paste

Answer 1

Dust refers to the fine, and dry powder-like substance consisting of tiny particles of soil or waste matter lying on the surface or carried in the air. It is generated for example by volcanic eruption and industrial emissions.

Fume refers to a gas that smells strongly and generally toxic when inhaled. It is generated for example by heating a metal above its boiling point and during MMA and FCAW by the action of heat on compounds in the flux.

Smoke refers to a visible suspension of carbon that is emitted from a burning substance. it is a collection of airborne particles along with the quality that is found in the atmosphere. It is generated for example by incomplete burning and water vapors and carbon dioxide.

Aerosols are defined as the suspension of the liquid droplet or fine solid particles in the air or in another gas. It is generated for example by sea salt from breaking waves (natural) and biogenic emissions (organic).

Mist is the thick and dense water vapor which is almost like fog but less thick than it. It can be formed at any surface due to humidity. It is generated for example by vaporization/condensation and atomization.

Gas is defined as one of the four fundamental states of matter. It has neither volume nor any shape that is present in the atmosphere. It can expand unconditionally to fill up any space of the container. It is generated for example from shale and several other types of sedimentary rock formations.

Vapors are defined as the substances liquid or solid that are suspended in the air/atmosphere. It is generated for example by boiling or evaporation of boiling water and heating up of atmosphere by human activities of releasing gases in the air.