This is an audio version of the Wikipedia Article:
00:01:40 1 Definitions
00:03:45 2 Importance of access to safe drinking water
00:04:07 2.1 Requirements
00:07:27 3 Water resources
00:07:36 3.1 Global
00:09:44 3.2 United States
00:10:22 3.3 Canada
00:10:48 4 Access to potable water
00:12:08 4.1 Developing countries
00:15:16 4.2 Climate change aspects
00:16:08 5 Health aspects
00:16:32 5.1 Diarrheal diseases
00:17:46 5.2 Well contamination with arsenic and fluoride
00:19:20 5.2.1 Identifying hazardous substances
00:19:46 6 Water quality
00:22:44 6.1 Improved water sources
00:23:38 6.2 Water treatment
00:24:57 6.2.1 Point of use methods
00:25:56 7 Regulations
00:26:18 7.1 European Union
00:27:10 7.2 United States
00:28:43 7.3 Russian Federation
00:29:26 8 Other animals
00:30:04 9 See also
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"The only true wisdom is in knowing you know nothing."
Drinking water, also known as potable water, is water that is safe to drink or to use for food preparation. The amount of drinking water required varies. It depends on physical activity, age, health issues, and environmental conditions. Americans, on average, drink one litre of water a day and 95% drink less than three litres per day. For those who work in a hot climate, up to 16 litres a day may be required. Water is essential for life.Typically in developed countries, tap water meets drinking water quality standards, even though only a small proportion is actually consumed or used in food preparation. Other typical uses include washing, toilets, and irrigation. Greywater may also be used for toilets or irrigation. Its use for irrigation however may be associated with risks. Water may also be unacceptable due to levels of toxins or suspended solids.
Globally, by 2015, 89% of people had access to water from a source that is suitable for drinking - called improved water source. In Sub-Saharan Africa, access to potable water ranged from 40% to 80% of the population. Nearly 4.2 billion people worldwide had access to tap water, while another 2.4 billion had access to wells or public taps. The World Health Organization considers access to safe drinking-water a basic human right.
About 1 to 2 billion people lack safe drinking water, a problem that causes 30,000 deaths each week. More people die from unsafe water than from war, U.N. Secretary-General Ban Ki-Moon said in 2010.