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Water Pollution

Prof. Rafia Mallic

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Syed Zain AliL1s10mbam0021

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Introduction

Long list of pollutants in the ocean including

garbage, toxic waste, vehicle and boating pollution,

waste water, oils, farming, and agriculture.

Pollution can be caused by humans or the environment

Top two major pollutants aretoxic waste

chemicals

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• When people dump waste or spray chemical

• That kills corals, aquatic mammals, fishes, sea birds, sea

snakesm and reptiles (that eats fish and other sea

creatures)

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Types of water pollution in rivers and lakes

• Toxic pollutants

– pesticides, herbicides and industrial compounds

• organic material

– manure and sewage

– produces decomposers

• Nitrogen and phosphates are other types of organic

material.

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• Thermal pollution

– Water reduces the oxygen after heating it

• Ecological pollution

– result of the environment polluting

– Dead animals and landslides

– toxic components in the lava

– volcanic eruption

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How Does Water Pollution Affect the life?

• Pesticides

– Used in the home environment

– Farms

– Industrial manufacturing

• Nutrients

– Sewage feed algae

– Red tides

– Red tides release toxins that kill fish

– Pathogens (human waste & Sewage runoff)

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Continue….

• Oil – Industrial and automotive runoff

– coat the skin of fish

• Trash – plastics

– biodegrade

– Plastic bags in the water look like jellyfish

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Continue….

• Radioactive Waste

– industrial pollution

– military waste

– genetic defects

• Noise Pollution

– boats and drilling

– Stress

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Mirza Furqan Baigl1s10mbam0032

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Continue….

• Thermal

– Temperature changes by power plants

Water Pollution and the Food Chain

– Mammals at top of the food chain are exposed to

higher levels of toxins

– Marine mammals rely on blubber to regulate bodytemperatures

– Blubber animals have large amounts of fat

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Continue….

Two- thirds of marine life is endangered now.

• Three main reasons to endangered

– trash and chemicals in the ocean

– animals like turtles, choke on garbage because they

think its food

– toxic waste harms one organism; it will end up

harming a whole food chain of marine life

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How to Control Water Pollution

• Control water pollution in your home – using non-toxic soaps, detergents and cleaning products

– Refrain the use of chemical fertilizers

– dispose of paints and other harmful chemicals • Protect groundwater

– critical for drinking water and natural ecosystems

– Improperly stored chemicals can seep into thegroundwater system

– inside of structures with cement floors, to avoid

groundwater contamination

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Continue…

• Prevent polluted runoff and soil erosion

– Rain washes toxic pollutants

– Plant bushes and trees along roads

– Roots of trees and bushes can slow the speed of runoff

protecting surface water

• Promote more sustainable agricultural methods

• Enforce stricter mandatory laws regardingwater pollution

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Anoxic Water

• http://daac.gsfc.nasa.gov/CAMPAIGN_POCS/OCDST/dead_zones.html.

http://daac.gsfc.nasa.gov/CAMPAIGN_POCS/OCDST/dead_zones.html

http://daac.gsfc.nasa.gov/CAMPAIGN_POCS/OCDST/dead_zones.html

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Continue…

• Midnight zone is called anoxic water

• There is no or hardily any dissolved oxygen in

the water

• Ninety percent of the ocean is the midnight

zone. This zone happens to be the bottom

zone, so it is completely dark.

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Conclusion

• It is very important that we address the issues that

affect the ocean. Ninety percent of sea creatures live

in the sunlight zone, which is the zone that is most

affected by global warming and oil pollution. Wemust stop these problems because if we don’t, we will

hurt and maybe even kill our sea life and ourselves.

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