P H 101 Lecture Notes - Lecture 10: Aquifer, Flint, Michigan, Water Scarcity
Document Summary
Water is used for drinking, cooking, hygiene, and cleaning. Access to water requires: quality, quantity, proximity, reliability, and cost. Source is less than 1 kilometer away from its place of use. It is possible to reliably obtain at least 20 liters or 4 to 5 gallons per member of a household per day. O(cid:374)ly 2. 5% of world"s water is freshwater, re(cid:373)i(cid:374)der is saltwater: 2/3 of fresh are in glaciers, other sources: rain-, surface-, and groundwater. An estimated 200 million hours are spent each day globally collecting water. Surveys from 45 developing countries show that women and children bear the primary responsibility for water collection in the vast majority, 76%, of households. There are more barriers such as strength that women or men may have. Examples of improved and unimproved drinking water sources. Improved: piped water into home, public tap, tube well, protected dug well, protected spring, rainwater collection. Severe drought: australia, south africa, brazil.
