Transcript Land Pollution Where does the reclamation materials come from ? Sources Huge stones and soil particles extracted from quarries and dredging sea bed. Solid Wastes Disadvantages expensive and small in.

Land Pollution
Where does the reclamation materials come from ?
Sources
Huge stones and soil
particles extracted
from quarries and
dredging sea bed.
Solid Wastes
Disadvantages
expensive
and
small in supply
Advantages
cheap and large in supply
Which one will you choose then?
Problems caused by
Land Pollution
•Air pollution
•Visual pollution
•Overgrowth of flies
AIR POLLUTION
Is there a lot of suspended particles?
02
Do you think the air quality is drowning?
3 1
Yes
28
Yes
No
No
No opinion
No opinion
Level of air quality. 0
26
Air quality drops due to reclamation?
1
very good
7
13
yes
good
medium
9
4
bad
intolerable
7
no
19
no opinion
EFFECT ON AIR QUALITY
1. Air is saturated with
suspending particles from
transporting and loading
soil particles
2.Toxic methane gas is produced by
anaerobic bacterial decomposition
VISUAL
POLLUTION
Bad harbour view due to reclamation?
7
Reclamation will distract tourists?
yes
16
6
yes
no
no
no opinion
7
22
1
yes
5
1
4
3
no opinion
very good
good
medium
no
21
no opinion
Opinion of the harbour view.
Harbour view becomes worse?
8
2
17
bad
very bad
VISUAL POLLUTION
1. Bad habour view
2. Desolate land
Overgrowth Of Flies
Annoyed by flies during reclamation?
Annoyed by flies after reclamation?
2 1
yes
no
no opinion
27
6
3
yes
no
21
no opinion
Overgrowth Of Flies
•Flies like to gather in
rubbish dumps.
•Lay eggs
Conclusion of
Land Pollution
Using rubbish in reclamation?
Reclamation brings many bad effects?
2
4
7
good
agree
8
disagree
medium
19
20
bad
opinions on reclamation
3 1
agree
disagree
26
no opinion
no opinion