Protect environment pollution essay

Local exhaust ventilation is the removal of airborne contaminants, close to their source of generation or release, before they can spread and reach the worker’s breathing zone. For this, it is necessary to ensure that the airflow is sufficient and its direction appropriate, particularly where the process generates air movement, such as a grinding wheel, or a hot process. For the same exhaust volume, the velocity of air being drawn towards the hood opening rapidly decreases with the distance (from the opening); considering that a minimum air velocity is required to ensure the capture of an airborne contaminant, it follows that the hood must be as close as possible to the point of dust generation.

Protect environment pollution essay

protect environment pollution essay

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protect environment pollution essayprotect environment pollution essayprotect environment pollution essayprotect environment pollution essay