Water pollution

1.

Pollution
Air
Water
Ground
Noise

2.

WATER POLLUTION

3.

Think about it

4.

Reasons and effects of water pollution(broad categories)
“Point source” — occurs when harmful
substances are emitted directly into a body
of water.
“Nonpoint source” — delivers pollutants
indirectly through transport or
environmental change.

5.

Reasons of water pollution
Pesticide &
Fertilizer
Mining
Personal care
products
Household
cleaning and
Pharmarceutical
s
Oil, gasolin,
additive
Water
pollution
Sediment
Chemical &
Industrial
process

6.

Reasons and effects of water pollution(specific)
pesticide and fertilizer
Reasons
farms and homeowner's
lawns
1.run-off
2.seepage
Results
1.fish
2.people

7.

Reasons and effects of water pollution(specific)
Chemical and Industrial Processes
Reasons:
1.solvents 2.heavy metals 3.radioactive
materials
Results:
1.aquatic life
2.people

8.

Reasons and effects of water pollution(specific)
oil , gasoline and additive
1.oil spills
2.drips of oil, fuel, and fluid
from cars and trucks
3.dribbles of gasoline spilled
onto the ground at the filling
station
4. and drips from industrial
machinery

9.

Reasons and effects of water pollution(specific)
results:
1.sea creature(fish, shimp---)
2.coastal residents

10.

Reasons and effects of water pollution(specific)
Mining
Mining
Reasons
1.mining process
2.the action of rainwater on
piles of mining waste
3. cyanide

11.

Reasons and effects of water pollution(specific)
Results:
1. exposes heavy metals and sulfur
compounds, result in "acid mine drainage"
and heavy metal pollution
2.pullote fresh water(fish, people)

12.

Reasons and effects of water pollution(specific)
Sediment:
Reason
forests are
"clear cut"
Results
1.aquatic life
2.people

13.

Reasons and effects of water pollution(specific)
Personal Care Products, Household Cleaning Products, and
Pharmaceuticals
Reasons:
1.goes down the drain when we do laundry, wash our hands,
brush our teeth, bathe, or do any of the other myriad things that
incidentally use household water
2.excreat
Results:
1.Ingredients from birth control pills are thought to be causing
gender-bending hormonal effects in frogs and fish.
2.The chemical nonylphenol, a remnant of detergent, is known to

14.

Solutions
prevent
1.education, media——enhance envirionment awareness
2.establish regulations and laws
3. plant trees and vegetation
administer:?

15.

SOIL POLLUTION

16.

CAUSES
The occurrence of this phenomenon is correlated with the
degree of industrialization and intensities of chemical
usage,including:
corrosion of underground storage tanks or of the piping
associated with them
application of pesticides and herbicides
historical disposal of coal ash and garbage
heavy metals and other chemical compounds like strontium
compounds, cesium compounds and fluorides

17.

18.

BATTERY

19.

dry cells
disposable baterries
rechargeable batterries
sealed rechargeable batteries

20.

Zn+2MnO2+2NH4Cl+= ZnCl2++Mn2O3+2NH3+H2O
Zn+2MnO2+2H2O==2MnOOH+Zn(OH)2

21.

22.

AIR POLLUTION

23.

POLLUTION
AIR AIR
POLLUTION
Life or Death

24.

Major primary pollutants produced by human activity
include:

25.

Sources
Anthropogenic sources (human activity)
–
–
–
Stationary sources
Mobile source
Chemicals, etc
–
–
–
Dust
Gases
Volkanic activity
Natural sources

26.

Health effect
Effect of cardiovascular health
Effects on cystic
Effects on COPD (Chronic obstruktive
pulmonary disease) and asthma

27.

Our dreams about the future

28.

What may become a reality if...
you do not stop to worry about our future
you do not defend our Earth from pollution
we continue to treat it indifferently
we stop to take care of yourself
OUR EARTH

29.

30.

31.

WHAT IS NOISE POLLUTION?
Noise = Unwanted sound

32.

SOURCES OF NOISE POLLUTION

33.

34.

SOURCES, LEVELS AND EFFECTS
TO PROLONGED EXPOSURES
Source
Db
Effect
Jet plane takes off
150
Eardrum rupture
Loudspeaker
120
Human pain threshold
Auto horn
110
Hearing damage
Busy city street
90
Hearing damage
Average factory
80
Possible hearing damage
Conversation in an office
60
Disturbing
Rusting leaf
20
Quite
Breathing
10
Very quite

35.

HEALTH EFFECTS
instant and permanent hearing loss
Increase in the rate of heart-beat, increased cholesterol and
blood pressure
headache, irritability and nervousness, feeling of fatigue and
decreases work efficiency.
memory loss, severe depression, and panic attacks.

36.

37.

SOLUTIONS
Use of horns with jarring sounds to be banned.
Noise producing industries, aerodromes, and railway stations to
be shifted away from the inhabited areas.
Proper law should be enforced to check the misuse of
loudspeakers and public announcements systems.
To enforce silence zones near schools / colleges, hospitals etc.
Growing green plants/trees along roadside to reduce noise
pollution as they absorb sound.
Loud speakers are banned from 10pm to 6am.