Problem+Research

Document URL http://go.galegroup.com/ps/i.do?&id=GALE%7CCX3233900244&v=2.1&u=pl7053&it=r&p=GPS&sw=w
 * Source Citation** "Water Pollution." //Environmental Science//: //In Context//. Ed. Brenda Wilmoth Lerner and K. Lee Lerner. Vol. 2. Detroit: Gale, 2009. 837-842. //Opposing Viewpoints In Context//. Web. 2 Nov. 2011.


 * Water pollution is the presence of compounds that decrease the quality of fresh or marine water.
 * Dichloro-Diphenyl-Trichloroethane (DDT) is an inorganic pollutant in water that effects humans.
 * Acid rain is also another major form of water pollution.
 * Pestisides (PCBs) and polychlorinated phenols when enter the water are toxic.
 * And run off of already polluted water from urban and rural land enters fresh water and pollutes it.

**Source Citation** Cunningham, William P. "Water Pollution." //Environmental Encyclopedia//. 4th ed. Vol. 2. Detroit: Gale, 2011. 1731-1734. //Gale Virtual Reference Library//. Web. 3 Nov. 2011. Document URL http://go.galegroup.com/ps/i.do?&id=GALE%7CCX1918701577&v=2.1&u=pl7053&it=r&p=GPS&sw=w


 * Petroleum hydrocarbons is another nutrient pollutant that pollutes our water.
 * Arsenic, cadmium, copper, lead, zinc, and soil are some hard metals that also pollute the water.
 * House hold waste and litter get dumped into the water.
 * Factories, power plants, sewage treatment plants, underground coal mines, and oil wells are all point sources because they discharge pollution from certain places such as drain pipes.
 * Non point sources include run off water sources such as farms, streets, golf courses, etc.
 * Coal mining is a main source of acid water pollution.
 * Hundreds of millions of tons of hazardous organic wastes are leaking into the water polluting it and making it hazardous to humans.

** S ource Citation ** Leduc, Denise M. "Point Source." //Pollution A to Z//. Ed. Richard M. Stapleton. Vol. 2. New York: Macmillan Reference USA, 2004. 115-119. //Gale Virtual Reference Library//. Web. 3 Nov. 2011. Document URL http://go.galegroup.com/ps/i.do?&id=GALE%7CCX3408100198&v=2.1&u=pl7053&it=r&p=GPS&sw=w


 * Point source pollution is contamination that enters the environment through any discernible, confined, and discrete conveyance
 * Municipal sewage treatment plant point sources can contribute pollution in the form of oxygen and pollute the drinking water in the form of oxygen or affect us directly.
 * When heavy rain comes and combines with the sewage pipes it overflows and discharges some untreated sewage into the lakes, rivers and oceans.
 * Industrial point sources are the result of industries using water in their production processes.
 * Municipal point sources are the result of community sewage treatment systems.

"Water Pollution Guide." //Water Pollution//. Web. 02 Nov. 2011. .

> > "Causes of Water Pollution." //Environmental Pollution Centers | The Online Pollution Guide//. Web. 02 Nov. 2011. . >
 * Domestic households, industrial and agricultural practices produce waste water which can cause pollution to the water.
 * Sewage is usually exported from your poop disposal object into the sewage pipes which usually leads out into the sea but treated through water treatment plants.
 * Littering into the sea is often hazardous to the marine animals such as the six pack rings.
 * The industry is a huge pollution source that's harmful to the environment.
 * Industries usually use freshwter to carry away waste from the plant to the sea, ocean, and lakes.
 * Radioactive waste is also another major water pollution cause.
 * Oceans are polluted by oil on a daily basis.
 * 12% of the oil in the ocean are because of oil spills. The rest of it is from drains, ship traveling and dumping.
 * Oil doesn't dissolve in the water so it forms a thick sludge in the water.
 * Air pollution can also pollute the water.
 * Water particles mix with carbon dioxide, sulfur dioxides and nitrogen oxides which creates a weak acid in the water.
 * Water also absorbs some of the air and if that air is polluted then it absorbed even more chemicals to make more acid.
 * Also another problem is eutrophication which is when the environment becomes enriched with nutrients.
 * Sometimes some fertilizer that farmers use run off into the near by water and increase its nutrient levels.
 * This causes phytoplankton to grow and reproduce more rapidly, resulting in algal blooms.
 * This bloom disrupts the ecosystem functioning.
 * It can use up all the oxygen in the water resulting in the death of marine life.


 * Storm water runoff- carries containinments from urban and rural areas into the water which usually form a sheen on the surface of the water.
 * Mining activities- Crushes the rock that contains many trace metals and sulfides, can form sulfuric acid.
 * Burning of Fossil Fuels- The ash particles can usually contain toxic metals, which can pollute the air and the water.
 * Transportation- The sulfur and nitrogen compounds that come out of the tailpipe of a vehicle may end up in the deposition of water.
 * Constructive Activites- Puts a lot of contaminents into the ground which can eventually end up in ground water.
 * Leaking Landfills- May pollute the groundwater below.