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Marine Pollution
PPT 5
| Term | Definition |
|---|---|
| Name types of pollutants | oil, nuclear waste, industrial waste, intensive farming, household waste, waste waste, pesticides, septic tank, animal dung, oil spill |
| Most of the pollution in the ocean comes from _____ | land based discharge |
| What are different types of chemical pollution? | Heavy metals, fungicides, herbicides, Petroleum, organic compounds and waste |
| is the accumulation of a chemical when the source of chemical is solely water. | bio concentration |
| refers to the accumulation of substances, such as pesticides, or other chemicals in an organism. This occurs when an organism absorbs a toxic substance at a rate faster than that at which the substance is lost. | bio accumulation |
| List some pathways of pollution | discharge of waste into oceans (point), Runoff into waters due to waters (non-point), from atmosphere (dust) |
| Where is nutrient input coming from? | Farms (inorganic fertilizers, animal waste), Sewage treatment plants, storm sewers |
| is the enrichment of an ecosystem with chemical nutrients, typically compounds containing nitrogen, phosphorus, or both. | Eutrophication |
| What are the effects of eutrophication? | increased primary production (algae blooms), Bacteria increase- causes hypoxic/anoxic zones |
| This is a type of metal; Sources: volcanoes, power plants, burning garbage, industry, sewage, gold extraction Causes disruptions in nervous system, esp. in a fetus bioaccmulate | Mercury |
| This is a type of metal; Common in environment, Sources: sewage, smelting operations, foundries,electroplating and battery factories Greatest on kidneys Also deformities of skeleton and severe pain | Cadmium |
| This is a type of metal; Used in Roman times for pipes, coins, pottery/glazes,increase after Industrial Revolution, mostly in air Sources: batteries, paints, fossil fuels, additive to motor oils, sewage Strongly affects children's nervous system | Lead |
| Found in refrigerants, thermal insulators Carcinogens, suppress immune system, increase susceptibility to infection reduce reproductive success of many classes of organisms, bio-accumulate Found in fish, shellfish, marine mammals | PCBs |
| carcinogen found in fish and shellfish- Interferes with reproduction of birds and benthic organisms when content high in mud | Dioxin |
| Three types of damaging fishing | dynamite, cyanide, small mesh nets |
| Negative of effects of nuclear power plants on marine life | organisms can get caught, confusing to lost tropical fish, heat may affect plant production |
| All the garbage in the ocean collects in what is known as a ____ _____. | garbage patch |
| One of first global conventions to protect marine environment; Control and prevent marine pollution Completely banned discharge nuclear waste | The London Convention |
Created by:
acorso3
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