Transcript Impact of Industrialization 2014

Objective: Understand Causes, Effects, and Solutions of Pollution
DO NOW: What do you know about the causes, effects and solution of Pollution?
Causes
Effects
Solutions
Objective: Understand Causes, Effects, and Solutions of Pollution
Key Words: pesticides, fertilizers, sewage, biomagnification
Water Pollution, Soil Pollution, and Toxic Wastes
Causes:
• Disposal of pesticides, fertilizer, sewage,
heavy metals, chemicals, PCB.
Effects:
• Disruption of food chains
• Endanger or extinction of species
• Loss of biodiversity
• Biomagnification
Positive actions:
• Reduce, reuse, recycle
• Law and legislation to regulate the disposal
of wastes
Objective: Understand Causes, Effects, and Solutions of Pollution
Key Words: pesticides, fertilizers, sewage, biomagnification
Exxon Valdez Oil Spill
A decade after the Exxon Valdez oil tanker spilled millions
of gallons of crude [oil] off Prince William Sound in Alaska,
most of the fish and wildlife species that were injured have
not fully recovered.
Harbor Seal
Pacific Herring
Common Loon
Only two out of the 28 species, the river otter and the bald
eagle, listed as being injured from the 1989 spill are
considered to be recovered said a new report, which was
released by a coalition of federal and Alaska agencies
working to help restore the oil spill region.
Eight species are considered to have made little or no
progress toward recovery since the spill, including killer
whales, harbor seals, and common loons [a type of bird].
Whale
River Otter
Several other species, including sea otters and Pacific
herring, have made significant progress toward recovery,
but are still not at levels seen before the accident the report
said.
More than 10.8 million gallons of crude oil spilled into the
water when the tanker Exxon Valdez ran aground 25 miles
south of Valdez on March 24, 1989.
The spill killed an estimated 250,000 seabirds, 2,800 sea
otters, 300 harbor seals, 250 bald eagles, and up to 22
killer whales. Billions of salmon and herring eggs, as well as
tidal plants and animals, were also smothered in oil.
Bold Eagle
Objective: Understand Causes, Effects, and Solutions of Pollution
Key Words: pesticides, fertilizers, sewage, biomagnification
Exxon Valdez Oil Spill
A decade after the Exxon Valdez oil tanker spilled millions
of gallons of crude [oil] off Prince William Sound in Alaska,
most of the fish and wildlife species that were injured have
not fully recovered.
Harbor Seal
Pacific Herring
Common Loon
Only two out of the 28 species, the river otter and the
bald eagle, listed as being injured from the 1989 spill
are considered to be recovered said a new report, which
was released by a coalition of federal and Alaska agencies
working to help restore the oil spill region.
Eight species are considered to have made little or no
progress toward recovery since the spill, including killer
whales, harbor seals, and common loons [a type of bird].
Whale
River Otter
Several other species, including sea otters and Pacific
herring, have made significant progress toward recovery,
but are still not at levels seen before the accident the report
said.
More than 10.8 million gallons of crude oil spilled into the
water when the tanker Exxon Valdez ran aground 25 miles
south of Valdez on March 24, 1989.
1) Identify two species that appear to have been least affected by the oil spill.
The river otter and the bald eagle.
Bold Eagle
Objective: Understand Causes, Effects, and Solutions of Pollution
Key Words: pesticides, fertilizers, sewage, biomagnification
2) The oil spilled by the Exxon Valdez tanker is an example of a
A) renewable resource and is a fossil fuel
B) nonrenewable resource and synthesizes ATP
C) renewable resource and is a source of ATP
D) nonrenewable resource and is a source of energy
3) The impact that the oil spill made on the environment is still being experienced.
State information from the reading passage that supports this statement.
A decade after the Exxon Valdez oil tanker spilled millions of gallons of crude oil most of
the fish and wildlife species that were injured have not fully recovered.
OR
Eight species are considered to have made little or no progress toward recovery since the
spill, including killer whales, harbor seals, and common loons.
OR
Several other species, including sea otters and Pacific herring, have made significant
progress toward recovery but are still not at levels seen before the accident.
Objective: Understand Causes, Effects, and Solutions of Pollution
Key Words: pesticides, fertilizers, sewage, biomagnification
Exxon Valdez Oil Spill
Harbor Seal
Pacific Herring
Common
A decade after the Exxon Valdez oil tanker spilled millions of
gallons of crude [oil] off Prince William Sound in Alaska,
most of the fish and wildlife species that were injured have
not fully recovered.
Only two out of the 28 species, the river otter and the
bald eagle, listed as being injured from the 1989 spill are
considered to be recovered said a new report, which was
released by a coalition of federal and Alaska agencies
working to help restore the oil spill region.
Eight species are considered to have made little or no
Loon progress toward recovery since the spill, including killer
whales, harbor seals, and common loons [a type of bird].
Whale
River Otter
Several other species, including sea otters and Pacific
herring, have made significant progress toward recovery, but
are still not at levels seen before the accident the report said.
3) The impact that the oil spill made on the environment is still being
experienced. State information from the reading passage that supports this
statement.
A decade after the Exxon Valdez oil tanker spilled millions of gallons of crude
oil most of the fish and wildlife species that were injured have not fully
recovered.
Bold Eagle
Objective: Understand Causes, Effects, and Solutions of Pollution
Key Words: pesticides, fertilizers, sewage, biomagnification
Exxon Valdez Oil Spill
A decade after the Exxon Valdez oil tanker spilled millions
of gallons of crude [oil] off Prince William Sound in Alaska,
most of the fish and wildlife species that were injured have
not fully recovered.
Harbor Seal
Pacific Herring
Common Loon
Only two out of the 28 species, the river otter and the
bald eagle, listed as being injured from the 1989 spill
are considered to be recovered said a new report, which
was released by a coalition of federal and Alaska agencies
working to help restore the oil spill region.
Whale
Eight species are considered to have made little or no
progress toward recovery since the spill, including killer
whales, harbor seals, and common loons [a type of bird].
River Otter
Several other species, including sea otters and Pacific
herring, have made significant progress toward recovery,
but are still not at levels seen before the accident the report
said.
4) Which autotrophic
organisms were negatively
affected by the oil spill?
Tidal plants were negatively
affected by the oil spill.
More than 10.8 million gallons of crude oil spilled into the
water when the tanker Exxon Valdez ran aground 25 miles
south of Valdez on March 24, 1989.
The spill killed an estimated 250,000 seabirds, 2,800 sea
otters, 300 harbor seals, 250 bald eagles, and up to 22
killer whales. Billions of salmon and herring eggs, as well as
tidal plants and animals, were also smothered in oil.
Bold Eagle
Objective: Understand Causes, Effects, and Solutions of Pollution
Key Words: pesticides, fertilizers, sewage, biomagnification
Biomagnification
• Toxic materials move through the food chain
and damage or kill many kinds of organisms
•The concentration of a pollutant such as DDT
is multiplied as it passes up the food chain
from producers to consumers.
•By the time it reaches the top-level
consumers, the amount of DDT in biological
tissues can be magnified Nearly 10 millions.
•By what number is the concentration of DDT
multiplied at each successive trophic level?
Fish-Eating Birds
10,000,000
Large
Fish 1,000,000
Small Fish 100,000
Zooplankton10,000
Producers 1000
Water
What kind of ecological pyramid does the drawing represent?
What do the orange dots represent?
What does a pyramid of numbers demonstrate about organisms in an ecosystem?
How is this illustration of DDT concentration opposite the pyramid of numbers?
1
Magnification of DDT
Concentration
Objective: Understand Causes, Effects, and Solutions of Pollution
Key Words: thermal pollution
Thermal Pollution
Causes:
•Warm water from power plants and industries
are released into a river or lake.
•Warm water cannot hold as much oxygen as
cold water.
Effect:
•Some species may suffocate as a result of
thermal pollution.
•Disruption of food chains
•Endanger and extinction of species
•Loss of biodiversity
Positive Actions
•Use of alternative cleaner source of energy
(solar energy or wind energy
Objective: Understand Causes, Effects, and Solutions of Pollution
Key Words: thermal pollution
Alternative Cleaner Energy Sources
Solar Power
Hydroelectric Power
Wave Power
Tidal Power
Wind Power
Geo Power
Objective: Understand Causes, Effects, and Solutions of Pollution
Key Words: thermal pollution
Thermal Pollution
Trout and black bass are freshwater fish that normally require at least 8 parts per million (ppm) of dissolved
oxygen (O2) in the water for survival. Other freshwater fish, such as carp, may be able to live in water that has an
O2 level of 5 ppm. No freshwater fish are able to survive when the O2 level in water is 2 ppm or less.
Some factories or power plants are built along rivers so that they can use the water to cool their equipment. They
then release the water (sometimes as much as 8°C warmer) back into the same river.
The Rocky River presently has an average summer temperature of about 25°C and contains populations of trout,
bass, and carp. A proposal has been made to build a new power plant on the banks of the Rocky River. Some
people are concerned that this will affect the river ecosystem in a negative way.
The data table below shows the amount of oxygen that will dissolve in fresh water at different temperatures. The
amount of oxygen is expressed in parts per million (ppm).
Black bass
Trout
Objective: Understand Causes, Effects, and Solutions of Pollution
Key Words: thermal pollution
Thermal Pollution
Black bass
1)
Trout
State one effect of temperature change on the oxygen content of fresh water. [Support your answer using
specific information from the data table.]
As the temperature increases, the oxygen content decreases.
As the temperature increases from 15 C to 20 C the oxygen decreases from 10.10 to
9.11 ppm
Objective: Understand Causes, Effects, and Solutions of Pollution
Key Words: thermal pollution
Thermal Pollution
Black bass
Trout
2) Explain how a new power plant built on the banks of the Rocky River could have an
environmental impact on the Rocky River ecosystem downstream from the plant. Your explanation
must include the effects of the power plant on: (1) water temperature (2) dissolved oxygen (3) fish
species
(1) The power plant will increase the temperature of the river water
(2) The dissolved oxygen content of the river will decrease.;
(3) The population of trout (and/or bass) may decrease.
The carp population may increase.