what do i need to know???. non point sources of pollution crop land feed lots logged forests golf...
TRANSCRIPT
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WHAT DO I NEED TO
KNOW???
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NON POINT SOURCES OF POLLUTION
• CROP LAND• FEED LOTS• LOGGED FORESTS• GOLF COURSES • STREETS• PARKING LOTS
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SEDIMENTATION
• #1 SOURCE OF AGRICULTURAL ACTIVITIES THAT LEAD TO WATER POLLUTION
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8
• ONE OUT OF EVERY _____ PEOPLE DO NOT HAVE ACCESS TO CLEAN DRINKING WATER
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MAJOR WATER POLLUTANTS
• PLANT NUTRIENTS• OXYGEN-DEMANDING WASTES• INFECTIOUS AGENTS (PATHOGENS)• SEDIMENTS• HEAVY METALS
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70
•What percent of our planet is water?
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3%
• What percent of the Earth’s water is fresh water?
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SEWAGE, ANIMAL WASTES, INORGANIC FERTILIZERS
• SOURCES OF NITRATES AND PHOSPHATES
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PLANT NUTRIENTS
• THIS POLLUTANT CAUSES EXCESSIVE GROWTH OF ALGAE
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1.5 million
•How many children die of diarrhea every
year?
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To determine the health of a stream
• Why do scientists study macroinvertebrates in water?
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DISEASES CAUSED BY BACTERIA• TYPHOID FEVER• CHOLERA• LEGIONNAIRE’S • E. COLI
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Escherichia coli
• THIS BACTERIA LIVES IN THE COLONS AND INTESTINES OF HUMANS AND OTHER ANIMALS AND THUS ARE PRESENT IN THEIR FECAL WASTES. They aid in digestion and are common in feces.
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UNSAFE WATER
• WORLD’S SINGLE LARGEST CAUSE OF ILLNESS
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150
•How many gallons of water does the
average American use every day?
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MISSISSIPPI
•What is the largest watershed in the US?
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IRRIGATION (AGRICULTURE)
•Name the #1 use of water in the world
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RESERVOIR
What is an artificial lake created by a dam?
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EUTROPHICATION
Process by which nutrients increase in a
lake, while oxygen levels decrease.
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AQUIFER
An underground rock formation that holds
water
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LEAKING PIPES
• THE MAIN CAUSE OF WATER WASTE
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BIOMAGNIFICATION
Process by which increasing amounts of toxins are stored in the bodies of organisms as toxins move up a food
chain
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FERTILIZER RUNOFF FROM AGRICULTURE
• The main cause of the Dead Zone in the Gulf of Mexico
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WATERSHED
• An area of land that is drained by a river.
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GARBAGE PATCH (GYRE)
• A HUGE AREA OF PLASTICS AND GARBAGE THAT CIRCULATE IN THE OCEANS
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Name 3 elements/compounds that biomagnify
• Mercury• Lead• DDT• PCB
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LAND SINKS (SUBSIDES), WATER TABLE FALLS
• What happens when too much water is removed from an aquifer?
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HEAT POLLUTION
•What type of water pollution is caused when the water is too warm for
fish to tolerate and oxygen levels decrease
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How many different types of water pollution can you name?
• Phosphates• Nitrates• Heavy metals like mercury, lead, cadmium and • Litter• Pathogens• Organic matter like plants, animals and feces• Sedimentation• Pesticides• Thermal pollution• pH from mines or acid rain (alkaline or acidic water)• Habitat modification
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GIVE 3 ADVANTAGES OF A DAM
• hydroelectric power- clean energy• Recreation areas• Jobs• Flood prevention• Irrigation water for farmers• Drinking water
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• Name 3 DISADVANTAGES OF DAMS
• Loss of jobs • Fish species can die out because the water flow
is altered• People may lose their homes and land• Siltation• Destruction of cultural sites• Loss of water due to evaporation
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Choose the correct test for each statement
• Measures the cloudiness of water• TURBIDITY• Affected by speed and temperature of
water• DO• Trout requires ____ levels of DO• High 9-12• Affected by silt, clay, organic matter and
plankton/microscopic organisms• TURBIDITY
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• Blue baby syndrome• NITROGEN• Drinking water cannot contain any levels• FECAL COLIFORM• Found in fertilizers, body waste, detergents• PHOSPHATES• Measured with a secchi disk• TURBIDITY
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• Vegetation alongside a river bank• RIPARIAN• Indicator species for low DO• LEECHES, BLACKFLY LARVAE, SLUDGE
WORMS
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EPIDEMIOLOGIST
• Someone who studies infectious diseases
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MALAISE
• The condition of feeling weak, having no energy, common among those suffering from water borne illnesses
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What is effluent?• Liquid waste from sewage treatment or
industrial processes that is released into a waterway
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ORGANISMS THAT INDICATE THE HEALTH OF A STREAM
• BIOINDICATORS
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PROCESS BY WHICH ADDED NUTRIENTS CAUSE A DECREASE IN DISSOLVED OXYGEN
• EUTROPHICATION
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PATHOGEN
• A disease causing microorganism
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HYPOXIA
• LOW LEVELS OF OXYGEN
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GULF OF MEXICO
• A LARGE DEAD ZONE IS LOCATED HERE
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