Hola

Friday, January 6th, 2012
Water.
The cells contain water. 60% (average) of a person is made of water.
Toilet- every time we flush it there is 19L/
Washer – 140/
Shower – 19L/min
Faucet –12L/min
300L/day – drain
1 ton of steel – 65,000 g
1 ton of paper – 40,000g
1 barrel of beer – 500g
1 lb aluminum – 160g
1 gal gasoline – 10g
Domestic – 9%
Agricultural – 34%
Industrial- 57%U.S.A – 1683 billion L/day
India – 1058 “
China – 1260 “
Europe – 46-48 billions
Hard water – contains carbonates, sulfates, chlorides of calcium
Electrolysis: to separate water and oxygen
Molecularstructure
Water is H2O and salt makes the surface more resistant
Solute – solvent – solution
The first water that comes from earth is from mountains

Mt. Waraleale – Kawai – Hawaii 460 inch.Arica – Chile- 0.03 inches
97.4% Sea water
2.6% fresh water – 86% on glaciers
Aquifers

Friday, January 13, 2012
Water pollution.
* 14,000 people die daily because of water pollution.
*700 million Indians don’t have a toilet
* 1,000 Indian children die from digestive diseases or any other disease related to water pollution.
* 90% China – has a disease related to pollution* 500 million people in the world that don’t have a source of water.
* 45% streams
* 47% Lakes contaminated
* 32% bays – estuaries

Categories
Pointsource
Contaminants that enter the water way from a single, identifiable source.
Non-point source.
Does not originate from a single source.
Causes.
* Chemical change
* Pathogen (bacteria)* Physical and Sensory (temperature and coloration)

Detergents
* Food processing waste
* Insecticides
* Herbicides
* Solvents
* Perchlorate (used in cosmetic industries)
*Cosmetic products
* Sulfur – Industrial discharge
* Fertilizers
* Heavy metals
* Silt
Macroscopic pollution: pollution in big quantities.
Thermal pollution: is another type of...