Category: Environmental engineering
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Air pollution is when harmful compounds enter the atmosphere and modify their properties and composition. Air pollution threatens life on Earth and is mostly caused by the release of poisonous gases into the atmosphere. Air pollution kills around seven million people globally, according to the World Health Organization (WHO).
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Water is a necessary component of life. Although water is believed to be plentiful in nature, fresh water, on which humans rely, is not.
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Water is supplied by a source, through an intake medium, transported to a treatment plant through an abstraction medium and transported to end users through a pipe network.
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Wastewater is any type of water that has been used by man or animal. It is the by-product of any activity in which water is involved.