26-08-2017, 11:08 AM
Drinking water is water that is safe to drink or to prepare food, without risk of health problems. Globally by 2015, 91% of people had access to safe drinking water. About 4.2 billion had access to tap water, while another 2.4 billion had access to public wells or taps. 1.8 billion people still use an unsafe water source that may be contaminated by feces. This can result in infectious diarrhea such as cholera and typhoid, among others.
Water is essential for life. The amount of drinking water required is variable. It depends on physical activity, age, health problems and environmental conditions. It is estimated that the average American drinks about a liter of water a day, with 95% drinking less than three liters per day. For those who work in a hot climate, up to 16 liters a day may be necessary. Water accounts for about 60% of the weight in men and 55% of the weight in women. Babies are about 70% to 80% water, while the elderly are about 45%.
Typically in developed countries, tap water meets drinking water quality standards, although only a small proportion is actually consumed or used in food preparation. Other typical uses include washing, toilets and irrigation. Gray water can also be used for toilets or watering. However, their use for irrigation may be associated with risks. Water may also be unacceptable due to toxin levels or suspended solids. Reducing waterborne diseases and developing safe water resources is one of the major public health goals in developing countries. Bottled water is sold for public consumption in most parts of the world. The word drinking came to late-late-English potabilis, meaning drinkable.
Water is essential for life. The amount of drinking water required is variable. It depends on physical activity, age, health problems and environmental conditions. It is estimated that the average American drinks about a liter of water a day, with 95% drinking less than three liters per day. For those who work in a hot climate, up to 16 liters a day may be necessary. Water accounts for about 60% of the weight in men and 55% of the weight in women. Babies are about 70% to 80% water, while the elderly are about 45%.
Typically in developed countries, tap water meets drinking water quality standards, although only a small proportion is actually consumed or used in food preparation. Other typical uses include washing, toilets and irrigation. Gray water can also be used for toilets or watering. However, their use for irrigation may be associated with risks. Water may also be unacceptable due to toxin levels or suspended solids. Reducing waterborne diseases and developing safe water resources is one of the major public health goals in developing countries. Bottled water is sold for public consumption in most parts of the world. The word drinking came to late-late-English potabilis, meaning drinkable.