Transcript NAME THAT TERM! - Duluth High School

WHAT DO I
NEED TO
KNOW???
NON POINT SOURCES OF POLLUTION
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CROP LAND
FEED LOTS
LOGGED FORESTS
GOLF COURSES
STREETS
PARKING LOTS
SEDIMENTATION
• #1 SOURCE OF AGRICULTURAL ACTIVITIES
THAT LEAD TO WATER POLLUTION
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• ONE OUT OF EVERY _____ PEOPLE DO NOT
HAVE ACCESS TO CLEAN DRINKING WATER
MAJOR WATER POLLUTANTS
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PLANT NUTRIENTS
OXYGEN-DEMANDING WASTES
INFECTIOUS AGENTS (PATHOGENS)
SEDIMENTS
HEAVY METALS
70
• What percent of our
planet is water?
3%
• What percent of the Earth’s
water is fresh water?
SEWAGE, ANIMAL WASTES,
INORGANIC FERTILIZERS
• SOURCES OF NITRATES AND PHOSPHATES
PLANT NUTRIENTS
• THIS POLLUTANT CAUSES EXCESSIVE
GROWTH OF ALGAE
1.5 million
• How many children die
of diarrhea every year?
To determine the health
of a stream
• Why do scientists study
macroinvertebrates in water?
DISEASES CAUSED BY BACTERIA
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TYPHOID FEVER
CHOLERA
LEGIONNAIRE’S
E. COLI
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.
UNSAFE WATER
• WORLD’S SINGLE LARGEST CAUSE
OF ILLNESS
150
• How many gallons of
water does the average
American use every
day?
MISSISSIPPI
• What is the largest
watershed in the US?
IRRIGATION (AGRICULTURE)
• Name the #1 use of
water in the world
RESERVOIR
What is an artificial lake
created by a dam?
EUTROPHICATION
Process by which nutrients
increase in a lake, while
oxygen levels decrease.
AQUIFER
An underground rock
formation that holds water
LEAKING PIPES
• THE MAIN CAUSE OF WATER WASTE
BIOMAGNIFICATION
Process by which increasing
amounts of toxins are stored
in the bodies of organisms as
toxins move up a food chain
FERTILIZER RUNOFF
FROM AGRICULTURE
• The main cause of the Dead Zone in
the Gulf of Mexico
WATERSHED
• An area of land that is
drained by a river.
GARBAGE PATCH (GYRE)
• A HUGE AREA OF PLASTICS AND
GARBAGE THAT CIRCULATE IN
THE OCEANS
Name 3 elements/compounds
that biomagnify
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Mercury
Lead
DDT
PCB
LAND SINKS (SUBSIDES),
WATER TABLE FALLS
• What happens when too much water is
removed from an aquifer?
HEAT POLLUTION
• What type of water pollution
is caused when the water is
too warm for fish to tolerate
and oxygen levels decrease
How many different types of water
pollution can you name?
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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
GIVE 3 ADVANTAGES OF A DAM
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hydroelectric power- clean energy
Recreation areas
Jobs
Flood prevention
Irrigation water for farmers
Drinking water
• 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
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
EPIDEMIOLOGIST
• Someone who studies infectious diseases
MALAISE
• The condition of feeling weak, having no
energy, common among those suffering from
water borne illnesses
What is effluent?
• Liquid waste from sewage treatment or
industrial processes that is released into a
waterway
ORGANISMS THAT INDICATE THE
HEALTH OF A STREAM
• BIOINDICATORS
PROCESS BY WHICH ADDED NUTRIENTS CAUSE
A DECREASE IN DISSOLVED OXYGEN
• EUTROPHICATION
PATHOGEN
• A disease causing microorganism
HYPOXIA
• LOW LEVELS OF OXYGEN
GULF OF MEXICO
• A LARGE DEAD ZONE IS LOCATED
HERE