EARTHSC 2WW3 Lecture 4: Earth Science 2WW3 Week 3
4 Apr 2018
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Document Summary
Components of the water cycle changes the quality of a water body. Suspended sediments- particulates that are within water bodies (lakes etc. ) Can include soil, algae plankton and other substances. Total dissolved solids (tds)- amount of inorganic and organic particles that are dissolved in water. Can be used as an indicator of water quality. This is the general water quality classification. 44% estuaries and 35% of rivers polluted. 26% increase in pollution from 1995-1999 in industrial water pollution. Renewed national u. s interest in clean water. All cities, by law, had to install treatment plants. At time only 1/3 of waters acceptable for swimming/fishing now approx. Water is under the shared jurisdiction of the provinces, territories, municipalities and federal government. Raw water- untreated water (sold as much as a l) Suggested that tap water filtration removes beneficial minerals, while leaving dangerous levels of fluoride and lead. Store in san diego sells 900 gallons per day.
