Student Activity Sheets - Grades 3-5 Page 5
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20Pie in the Sky
Activity 4:
The illustration below shows the major sources of air pollution in the San Joaquin
Valley in the summer and in the winter. Color each portion in the air pollution pies
a different color and then answer the questions below.
Summer
Winter
Problem: OZONE
Problem: PARTICULATE MATTER
(NOx + VOCs + Hot Sun)
Fireplaces
and Wood
Stoves
(20%)
Motor
Other
Vehicles
Sources
(60%)
(40%)
Other Sources
(80%)
NOx
VOCs
PM
PM
PM
FACTORIES/
GAS-POWERED
WOOD
CAMP
CHARCOAL
PAINT
AEROSOLS GASOLINE
CONSTRUCTION
ROADS
VEHICLES
BARBEQUE
POWER PLANTS
EQUIPMENT
STOVE
FIRE
LIGHTER FLUID
B U R N I N G
F O S S I L
F U E L S
F
I
R
E
S
D
U
S
T
V
A
P
O
R
S
1
What air pollutant is the biggest problem in the summer?__________________________________
2
What air pollutant is the biggest problem in the winter?____________________________________
3
How is ozone formed?_________________________________________________________________
4
What are the major sources of the emissions that create ozone?_____________________________
5
Besides cars and trucks, what else burns gasoline?__________________________________________
6
Where do VOCs come from?____________________________________________________________
7
Why is particulate matter such a problem in the winter?____________________________________
8
Besides burning wood, where else does particulate matter come from?________________________
_____________________________________________________________________________________
5
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