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Marine Debris Exit Survey at a Beach in Miyako Island, Okinawa
Feb. 11, 2011
Date Monitored: February 11, 2011 Beach Size: 100-105 meters x 10-12 meters
Survey Conducted by: Dr. Satoshi Oshiro & 11 members Sampling Unit: 100 meters x 10 meters
Beach Name: Takano in Miyako Island, Okinawa, Japan Beach Usage: Rural
Beach ID (Lati./Long): 24.804699,125.331597 (Center of sample unit) River/Creek input: No
Total Number and Weight of Debris Items Collected from Survey Site
(Sampling Units: 100m x 10 m. Start point: 24.840222,125.331908 End point: 24.80523,125.331302)
 
Types of Debris
Quantity
%
Weight (kg)
%
Country-by-Country
            J=Japan, C=China, T=Taiwan, K=Korea, U=unknown
Fishing Gears:
 
          
1.
Fishing net
1
0%
3.50
0.7%
J   C   T   K   U 1
2.
Fishing lines
 
 
J   C   T   K   U  
3.
EPS Fishing floats and quills
493
8.3%
31.60
6.3%
J   C   T   K   U 493
4.
EVA or PVC float or buoy
258
4.4%
289.00
57.2%
J   C   T   K   U 258
5.
Ropes
1
0%
6.00
1.2%
J   C   T   K   U 1
6.
Foamed Polystyrene products
1,652
28%
42.60
8.4%
J   C   T   K   U 1,652
 
 
 
Plastic Products*
 
 
7.
6 Pack holders
 
 
J   C   T   K   U  
8.
Plastic bags
 
 
J   C   T   K   U  
9.
Caps, lids, pull tabs
 
 
J   C   T   K   U  
10.
Plastic cups, knives, forks, spoons
 
 
J   C   T   K   U  
11.
Food wrappers, sandwich bags
 
 
J   C   T   K   U  
12.
Plastic containers
 
 
J   C   T   K   U  
13.
Straws, stirrers
 
 
J   C   T   K   U  
14.
PET bottles
882
15%
70.00
13.9%
J 17 C 738 T 66 K 36 U 25
15.
Balloons
 
 
J   C   T   K   U  
16.
Plastic Baskets
3
0%
2.00
0.4%
J   C   T   K   U 3
17.
Plastic pieces
2,165
36.7%
17.00
3.4%
J   C   T   K   U 2,165
   
 
 
Other Debris:
 
 
18.
Cigarette filters
 
 
J   C   T   K   U  
19.
Cigarette lighters
 
 
J   C   T   K   U  
20.
Tires
 
 
J   C   T   K   U  
21.
Light bulbs
23
0.4%
1
0.2%
J   C   T   K 1 U 23
22.
Rubber pieces
283
4.8%
17.00
3.3%
J   C   T   K   U 283
23.
Slippers
 
 
J   C   T   K   U  
24.
Cable Sleeves
 
 
J   C   T   K   U  
25.
Glass bottles
104
1.7%
25.00
4.9%
J   C 11 T   K   U 93
26.
Syringes
 
 
J   C   T   K   U  
27. Soda cans        
J   C   T   K   U  
28. Cans 39 0.7% 0.54 0.1%
J 3 C 26 T 4 K 3 U 3
  TOTAL
5,904
100%
505.24
100%
J 20 C 775 T 70 K 39 U 5,000
   
 
Density Survey (Sample Unit: One SQ meters Quadrat Located at 24.805591,125.331194) / Feb. 26.2011
 
Types of Debris
Quantity
%
Weight (g)
%

Country-by-Country

a. Plastic beverage bottles 18 8.78% 600 10.16%
J   C 12 T   K 1 U 5
b. Plastic containers        
J   C   T   K   U  
c. Plastic bags        
J   C   T   K   U  
d. EPS Fish box or foam-filled fish box        
J   C   T   K   U  
e. Fishing lines, fishing gears multiple   300 5.08%
J   C   T   K   U  
f. Fishing floats and quills 24 11.70% 1,800 30.48%
J   C 14 T   K   U 10
g. Fishing net & ropes        
J   C   T   K   U  
h. Rubber slippers, sandals 6 2.93% 300 5.08%
J   C   T   K   U 6
i. Soda cans 1 0.49% 50 0.85%
J   C   T   K   U 1
j. Plastic pieces 10 4.88% 1,500 25.40%
J   C   T   K   U 10
k. Rubber pieces 17 8.29% 65 1.10%
J   C   T   K   U 17
l. PP foam pieces 129 62.44% 700 11.86%
J   C   T   K   U 129
m. Cans 1 0.49% 590 9.99%
J   C   T   K   U 1
  TOTAL 206 100% 5,905 100%
J 0 C 26 T 0 K 1 U 179
 
 
Methods of Disposal Applied
  Type of Debris Method of
Disposal
Amount
Disposed (kg)
Name Facility Ratio of
Incineration
Ratio of
Recycle
1. Plastic beverage bottles Incinerated 70.00 Miyakojima City Municipal
Incineration Facility (MCMIF)
13.85%  
2. Fishing floats and quills Incinerated 31.60 MCMIF 6.23%  
3. Fishing net Incinerated 3.50 MCMIF 0.69%  
4. Fishing lines Incinerated   MCMIF    
5. EVA or PVC float or buoy Incinerated 289.00 MCMIF 57.20%  
6. Plastic bags Incinerated   MCMIF    
7. Ropes Incinerated 6.00 MCMIF 1.2%  
8. Plastic baskets Incinerated 2.00 MCMIF 0.4%  
9. Plastic pieces Incinerated 17.00 MCMIF 3.4%  
10. Rubber pieces Incinerated 17.00 MCMIF 3.4%  
11. Tires Recycled   Miyakojima City Municipal Holding
Facility for Recycle (MCMHFR)
   
12. Formed polyestrene Incinerated 42.60 MCMIF 8.4%  
13. Cable Sleeves Incinerated   MCMIF    
14. Light bulbs Incinerated 1.00 MCMIF 0.20%  
15. Glass bottles Recycled 25.00 MCMHFR 4.93%  
16. Cans Recycled 0.54 MCMHFR 0.10%  
17. Crab pot and traps Recycled   MCMHFR    
18. Syringes Incinerated   MCMIF    
  TOTAL   505.24   100%
0.00%
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