Some waste water, fertilizers and sewage contain high levels of nutrients. If the nutrients go in the water, they encourage algae(a lot) and weed growth in the water. This make water undrinkable and also kill organisms inside the water. Some algae also create toxins which after being consumed by small fish, these toxins move up to foo chains and hurt larger animals like sea lions, dolphins, birds, and big fishes too. Too much algae will also use up all the oxygen in the water, and other water organisms in the water will die out of oxygen from starvation. Or some fishes or animals have to leave or must die.
Real life example: Lake Eire
http://guardianlv.com/2014/03/lake-erie-algae-blooms-point-out-need-to-limit-phosphorus-pollution/
"Lake-eire-algae." Lake-eire-algae. N.p., n.d. Web.
2. Surface water pollution
Surface water includes natural water found on the earth's surface, like rivers, lakes, lagoons and oceans. Surface water pollution is caused by huge amount of garbage we throw. The garbage that we throw goes to landfill, then to ocean or river. The garbage will make the water very dirty. The contaminated water would effect the animals under water and also the plants would get effect when they get water through their roots. And also would harm the soils. The animals would also get harm because some animals could eat the plastic or garbage and get sick. However, it could return to people again. The fish could mistakenly eat the plastic and the people catch that fish and then eat it. The cause of this pollution started from us. If we reuse and reduce our things every day little by little, we could help the animals live in the water and also near the water.
Great Pacific garbage patch.
http://www.ocregister.com/articles/plastic-602048-ocean-problem.html
"Just What Is Floating in the Great Pacific Garbage Patch?" The Orange County Register. N.p., n.d. Web. 13 Mar. 2014.
3.Chemical Water Pollution
Many industries and farmers work and uses chemicals. It is kind of similar to the oil spillage pollution. The farmers use chemicals to grow their plants faster. All the chemicals they use will end up to water like river or ocean.These chemicals are poisonous to many organisms that live in water like river and oceans. The animals in that area would get killed by the chemicals. Also, metal and solvents are very harmful for the living organism in the water where chemical are released. It makes the development of the living organisms slow. And also a death.
4.Oil Spillage
When the accident happen on the ocean, for example the ship wrecked. The ship that carried large amount of oil would all leak out. The petroleum would harm a lot of things. The birds were no longer able to fly if their wings were stick to the oil. If birds cannot fly, it will be no longer able to live. The fishes die. So their gills and feathers gets ineffective. There would be no organisms can live in the area. Once the oil spills, it takes a lot of time to get them back.
Real life example: Bp oil spill
http://www.bbc.co.uk/news/science-environment-13123036/
"Oil Spill." Oil Spill. N.p., n.d. Web.
http://www.bradenton.com/2014/03/11/5039425/florida-still-in-grip-of-2010.html
"Bradenton Herald." Florida Still in Grip of 2010 BP Oil Spill. N.p., n.d. Web. 13 Mar. 2014.
source
http://eschooltoday.com/pollution/water-pollution/types-of-water-pollution.html
"What Are the Various Types of Water Pollution?" What Are the Various Types of Water Pollution? N.p., n.d. Web. 13 Mar. 2014.
"EPA." The Effects: Environment. N.p., n.d. Web. 13 Mar. 2014.
No comments:
Post a Comment