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Cornell-style notes, lecture 3

3 Pages
82 Views

Department
Environmental Science
Course Code
EESA10H3
Professor
Jovan Stefanovic

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Human Health and The Environment Mid-term Study Notes
Lecture 3
Key pointsNotes
Liquid Natural
CapitolWater is necessary for our existence
Removes wastes and dilutes pollutants
WithdrawalTotal amount of water removed from a river,
lake or aquifer for any purpose. Some of this is
returned
Worlds Issues
regarding WaterQuality and quantity
Of the water available only 1% is fresh
(drinkable) water
Location of water: plenty of water just
unreachable
Irrigation shrinks water basins
A lot of precipitation but it is not collected or
stored
Lack of access to clean water kills children
Drinking waterSurface water: in urban areas mostly from
rivers, lakes and reservoirs
Ground water: in rural areas (wells)
Contaminants in
Drinking Water1.Microbes
2.Radionuclide
3. Inorganic contaminants
4. Industrial organic contaminants
5.Disinfection byproducts
MicrobesFecal Coli form and E.Coli contamination with
human and animal wastes, diarrhea, nausea,
headaches, renal failure, coagulation disorders.
Salmonella typhityphoid fever (high fever, ab
pain, constipation)
Shigella sp.
Vibro cholerae
Norwalk viruses, enteroviruses, adenoviruses—
diarrheal illness
Hep A
Cryptosporidium
Giardia Lamblia
RadionuclidesCan damage DNA thus increasing chances of
cancer
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Description
Human Health and The Environment Mid-term Study Notes Lecture 3 Key points Notes Liquid Natural Water is necessary for our existence Capitol Removes wastes and dilutes pollutants Withdrawal Total amount of water removed from a river, lake or aquifer for any purpose. Some of this is returned Worlds Issues Quality and quantity regarding Water Of the water available only 1% is fresh (drinkable) water Location of water: plenty of water just unreachable Irrigation shrinks water basins A lot of precipitation but it is not collected or stored Lack of access to clean water kills children Drinking water Surface water: in urban areas mostly from rivers, lakes and reservoirs Ground water:
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