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Marine Pollution

PPT 5

TermDefinition
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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