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Water quality refers to the chemical, physical, and biological characteristics of water based on the standards of its usage. [1] [2] It is most frequently used by reference to a set of standards against which compliance, generally achieved through treatment of the water, can be assessed.
Water supply is the provision of water by public utilities, commercial organisations, community endeavors or by individuals, usually via a system of pumps and pipes. Public water supply systems are crucial to properly functioning societies. These systems are what supply drinking water to populations around the globe. [1]
Water Research is a peer-reviewed scientific journal covering research on the science and technology of water quality and its management. It was established in 1967 and is published by Elsevier on behalf of the International Water Association.
OCLC no. 7004034. Links. Journal homepage. Online archive. Water Science and Technology is a monthly peer-reviewed scientific journal covering all aspects of the management of water quality. It was established in 1969 and is published by IWA Publishing.
According to the Joint Monitoring Program (JMP) for Water Supply and Sanitation of the WHO and UNICEF, the latest reliable source on access to water and sanitation in Saudi Arabia is the 2004 census. It indicates that 97% of the population had access to an improved source of drinking water and 99% had access to improved sanitation .
Drinking water or potable water is water that is safe for ingestion, either when drunk directly in liquid form or consumed indirectly through food preparation. It is often (but not always) supplied through taps, in which case it is also called tap water .
Water resources are natural resources of water that are potentially useful for humans, for example as a source of drinking water supply or irrigation water. 97% of the water on Earth is salt water and only three percent is fresh water; slightly over two-thirds of this is frozen in glaciers and polar ice caps.
Surface water is water located on top of land, forming terrestrial (surrounding by land on all sides) waterbodies, and may also be referred to as blue water, opposed to the seawater and waterbodies like the ocean. The vast majority of surface water is produced by precipitation.
A water supply network or water supply system is a system of engineered hydrologic and hydraulic components that provide water supply. A water supply system typically includes the following: A drainage basin (see water purification – sources of drinking water)
A piped water supply and distribution system is intermittent when water continuity is for less than 24 hours a day or not on all days of the week. During this continuity defining factors are water pressure and equity. At least 45 countries have intermittent water supply (IWS) systems.