ˆg Journal of the Korean Society for Marine Environmental Engineering Vol. 0, No. 3. pp. 48-54, August 2007 nƒ z{o r y fÿ d Ú r Ú Ú Ú~ n m / m n n Characteristics of Marine Debris collected from the Coastline of Sandbar in the Nakdong River Estuary Y.B. Lee, S. Park, C.R. Ryu, H.T. KIM and H.S. Yoon Department of Ocean Engineering, Pukyong National Univ., Daeyeon 3-Dong, Nam-Gu, Busan 608-737, Korea Research Center for Ocean Industrial Development, Pukyong National Univ., Daeyeon 3-Dong, Nam-Gu, Busan 608-737, Korea l l l vn r lp p kj p r kp o p j p s, l tp kj p r q m. p p nk p. ) l vn t r lp p 50 m 50 m(=0.0025 km 2 ) mlp r ml k j l kj p p o edšp m. 2) kj p o ml p kj,,0 kgp kj l, o r ( km 2 ) kj p r 444 ton/ km 2 p. o s el 23.75 kgp kj l, o r ( km 2 ) kj p 9.5 ton/ km 2 p. o kp r p 36.67kg/day/p kj r p r p. 3) mll kj t q p kp v p q 85.86%, p l 5.3%, dž 4.78%, j 2.34%, o 0.94%, p ƒp ~ q 0.27% ˆ l. Abstract This study investigated the spatial distribution of the marine debris in Jinudo in the Nakdong river estuary. Types of marine debris in Jinudo are analyzed through sampling around some portion of its sandbar shoreline. The present study and its main results are summarized as follow: ) Monitoring system, for evaluating the volume of marine debris, was established in the coastal region of 50 m 50 m (0.002 km 2 ) over the southern part of Jinudo. All the marine debris of conceivable form are collected and their amount was also estimated. 2) During the st collection in May 2007, the total weight of the marine debris was,0 kg in this site, which means the density of marine debris around the shoreline is 444 ton/ km 2. After one month later, the collected marine debris was 23.75 kg and so we have the average density of 9.5 ton/ km 2. From these results, it is suggested that the marine debris of 36.67kg was being accumulated per day over unit area( km 2 ). 3) The most frequent marine debris collected during monitoring campaigns was wooden material amounting to 85.86% of the whole collection; the rest were fishing gears such as nets and buoys(5.3%), household waste(2.34%), glass(0.94%) and metals(0.27%). Keywords: Nakdong River estuary( ), Jinudo(vn ), Marine debris( kj ) Corresponding author: yoonhans@pknu.ac.kr 48
t kl j s r 49. Green Peacep 998 Report on the World s Oceans l r kmmp tn op p p o p 77%(o 44%, op 33%), p 2%, kœ l p p 0% v p p k r p (n[200]). p rp kmmp l kp qr p plp, l r lv kmmp p ll r p v r l, kj p mm n re p ( [2000]). t p rp kj l p l kl q l p kj, l o p oj rl kk p j l v ( [2000]). l kj p tp } k l op j v, t kl o kl p erp ~ p ( [2005]). pm p kj p lk l m n, Œ l dž r p r o p k p q e} o evl l tl (Ghost fishing)p ( [998]). p op j k ˆ Ž l lsqo m Ž p p rp r n p k ( [2005]). q n p k p v p p n kj p l 30 Šl pt l } p lv p j 0 Šp v p p ( [2005]). q v k l s p pp ~ k m r l vr s l pl, op rp s s erp (o [2002]). 997 p, p tn tn / o p rl r lp l k tep r rp s ( k, 2002) n p p p. r r r j v n m p er s k k l p s q pl l p n p p. kn kj p r p Žk, evrp r lp q r, r} k p o q p rp kj l s n lv. pl l l l vn t r lp p kj p r kp op j p s p ee, l t(vn, eq, n ) r kp r~ kj ( )p r q. 2. m 2. g f m Š p rp k j p p lp,, p ( [2005]). ~w, lp p lk lp dž l p n s m p n p. w, p kj p e p dž k 80, dž p k 450 p p p fv k m rp kl q l porp r prl v rp km p. s l l re k p ql e p Table. w, p kj k l l l m p d. qlp r } l e 2 mm n pp k q nl l np p. 2.2 k gf Š n k l l lk ll k s m s p, pl, t l v p r s l rt l t lk v o p s pl ( [2005]). k s l r tp, k p q (7.9%), n (25.9), mpl (25.8), ˆpl(3.8%), (9.), ˆ(7.5%) p. l p s e l p o o n dž v r o p d v 2% v k p k r p ( [2002]). v j p p s q p Table. Decomposition time of the marine debris(woo[200]) Marin debris Requirement Marin debris Requirement Marin debris Requirement Description Resolving time Description Resolving time Description Resolving time Paper Wet towel 3Gweek Newspaper 6Gweek Fruit 2Gmonth Cotton glover -5Gmonth Milk pack 3Gmonth Cotton rope 3-4Gmonth Woolen glover Gyear Plywood -3year Painted wood 3Gyear Styrofoamcup 50Gyear Tin can 50Gyear Styrofoam buoy 80Gyear Aluminium can 200Gyear Plastic belt 400Gyear disposable nappy 450Gyear Plastic bottle 450Gyear Fishing line 600Gyear Glass bottle year
50 pm Ë Ë ~ Ë ˆËo p dž r~p 45.8%, w ll 2.8%, w 2.4%, 8.0%, o 4.7%, o 3.2%, t 2.7%, p sp ˆ.4%p p m. l p k j p p s q p p dž r~p 4.8%, l l p 8.6%, 7.0%, ˆpl 0.3%, o 5.6%, sp 0.2% ˆ(p ƒ, o, ) 33.5% ˆ. l op o p p s q p p e j 70%, džp 9%, q %, 4%, o 3%, ˆ 3% ˆ. DGPS o r re p o p o p p l l o o p tol vr, p ~ kp p p k pl. o p p p ll pl l p m l p m p v rp s l p m p p s l l p p p l (o [2002]). ll s o p s s q p p dž dž 84.3%, q %, sp.%, p l (netting).7%, o n.9% v m. lp o p p pl k l p kmmp e p. m p q e, ~ l ~p p v p. l p l pr ll k lp dž p, p p Oki l, q dž p 33%l 20% v r d p p lp p p o, } p m p ppp e re m ( [2005]). 2.3 sk g f o s vn kj } p [200]p q ˆp 2000 8o 200 7o v k( 2 ) p p 920 m, 60 mp ˆp t k p Š m. l l vn t r lp p 2007 5o l 50 më50 m(=2,500 m 2 ) mlp r m l k j l s r m. p kl kj p p r o p vn r lp r~ kp p v e rr l p l e rp k j q p mlp q r m. s p s kp j l s Fig.. Monitoring site of the marine debris in the coastal of Jinudo. p r m. ml p p ~, pr p erl kj l kp kj p q m. l l kj p ˆp m. Fig. p vn k j p o p p j r p vp ˆ p. n, lp qlr l l rp t p tn ( [200]). l l lp kj k p p s ( km)p t l q m. t k p p( km) p v l p v k k p p p( ) ˆ kl kj p t p tp q m. l r tl vn, eq, n p k p e p p k l p o Google Earth programp k p p r m. Google Earth programl k m p r erp 2007 ol. p vn, eq, n p t r lp k p r 2.96 km, 4.25 km, 3.59 kml. Fig. 2. The estimation of shoreline - using Google Earth program.
t kl j s r 5 3. i y 3. sk g f Š - o [200]p 2000 8o 200 7o v ( 2 ) vn kp p 920 më 60 mp r 55,000 m 2 l l o r ( km 2 ) k p 48,294 kgp k t p Table 2m. l kj p o r q p kp v p džp 30.9%, o.8%, 9.7%, 7.8%p p ˆ. p o p p j pp ˆ. le [2004]p 2003 ˆ d v n kj qle } kj p,800 ton p vn kj } p llpp k 2003 2op kj q v v rp r r lp Ž. 3.2 mo -sk g f l vn t r lp p 2007 5o 9p( s )l 50 më50 m(=0.0025 km 2 ) mlp r m l k j l s r m. k op 6o 9p(2 s ), 7o 30p Fig. 3. The campaign collecting the marine debris on the coastline of Jinudo in 2003. (3 s )l p mll r k j q m. ˆ Table 3. s,0 kgp kj l, o r ( km 2 ) kj p 444,000 kgp. p p r [200]p l m s ep m k 9.2 p kp p. mll s el kj t q p kp v p q 85.86%, p l Table 2. Characteristics of the marine debris collected from the coastline of Jinudo in the Nakdong river estuary(song[200]) Area (km 2 ) Coast (km) Component Leather Rubber Metal Wood Glass Styropoam Paper Vinyl Plastic clothing & cloth Oversize Etc. Total weight (kg) 673 2,88 2,767 3,756 5,722 3,98 560 4,680 4,942 2,8 3,022 3,976 48,294 %.4 6.0 5.7 7.8.8 6.6.2 9.7 30.9 4.4 6.3 8.2 00 quantity (EA) 889 3,867 22,689 6,556 37,733 9,889 6,222 2,022 44,400 3,800 556 2,56 50,778 % 0.6 2.6 5.0 4.3 25.0 6.6 4. 8.0 29.4 2.5 0.4.4 00 weight (kg) 60.60 259.28 249.0 338.0 55.0 287.8 50.4 42.2,344.8 90.6 272.0 357.8 4,346.5 %.4 6.0 5.7 7.8.8 6.6.2 9.7 30.9 4.4 6.3 8.2 00 quantity (EA) 80 348 2,042 590 3,396 890 560,082 3,996 342 50 94 3,570 % 0.6 2.6 5.0 4.3 25.0 6.6 4. 8.0 29.4 2.5 0.4.4 00 Table 3. The result of the marine debris collected from the coastline of Jinudo in the Nakdong river estuary Component Plastic Glass Fishing implement Type st investigationg(9 May, 2007) 2nd investigationg(9 June, 2007) 3rd investigationg(30 July, 2007) Quantity(EA) Weight(kg) Quantity(EA) Weight(kg) Quantity(EA) Weight(kg) oversize PET 23 34.5 3.25 PET & etc. 34 8.5 0 6 beverage bottle 36 liquor bottle 8 0.5 2.5 etc. 8 3 fishing net - 32-3.5 buoy 7 25 3 5 Wood - 953 - - 33 Construction waste 3 7.5 - - - - Household waste - 26-3 - 0.5 Metal etc. 9 3 0.5 0.0 Total weight(kg),0 23.75 4. 5 2 5.5
52 pm Ë Ë ~ Ë ˆËo Fig. 4. Plastics collected from the campaigns in the coataline of Jinudo. Fig. 7. Construction and life waste collected from the campaigns in the coataline of Jinudo. Fig. 5. Glasses collected from the campaigns in the coataline of Jinudo. Fig. 8. Woods collected from the campaigns in the coataline of Jinudo. Fig. 6. Metals collected from the campaigns in the coataline of Jinudo. 5.3%, dž 4.78%, j 2.34%, o 0.94%, p ƒp ~q 0.27% ˆ l. 2 s el 23.75 kg, 3 s el 4. kgp kj l, o r ( km 2 ) kj p 9,500 kg 6,400 kgp. 2 s k(3p)p r p 36.67 kg/day/km 2, 3 s k(4p) p r p 400.0 kg/day/km 2 p kj r p r l. Fig. 4 Fig. 8 v vn t r k j s l vm p ˆ. 3.3 i g f }o vn t r kl p kj ˆp vn, eq, n l kj p r Table 4m. ~rp vn 2.96 kml kj k 65,72 kgp, eq 4.25 kml kj p 94,352 kg, n 3.59 kml kj p 79,698 kg r l. p p ˆp Fig. 9. Fishing implements collected from the campaigns in the coataline of Jinudo. l t r k l kj p r 239,760 kgp. l vn k j ˆ p eq m n l rn p tp l kp p ˆ pp p Ž. t p t kj r n p Ž.
t kl j s r 53 Table 4. The estimated quantity of marine debris collected from the coastline of sandbars in the Nakdong river estuary Component Type Jinudo (2.96 km) Sinjado (4.25 km) Doyodeung (3.59 km) Total (kg) Plastic oversize PET 2,042 2,933 2,477 7,452 PET & etc.,095,573,328 3,996 Glass beverage bottlegliquor bottle 622 893 754 2,268 Fishing implement fishing net,894 2,720 2,298 6,92 buoy,480 2,25,795 5,400 Wood... 56,48 8,005 68,425 205,848 Construction waste... 444 638 539,620 Life waste...,539 2,20,867 5,66 Metal etc. 78 255 25 648 Total weight(kg) 65,72 94,352 79,698 239,760 3.4 g f g m p lp t r l k j rr rp p rrp pp, q kj p v n p o l l p p p. p s p o kj p op p kp p q rp p. p kj p p lr kp rp s, r p, ƒ p p n r p pp p p p v nl erp p. [2005]p l l p r kj r e p n } r np p. v, ) kj r k p r v- }-lk lp p l p p lrp lk, 2) j p koplr, } p edšp } kp lk, 3) kj r v rp rp q r rp n, 4) r, ~, l~, l p l lk p. p p rl s r p n p s ppp k p. p p k p o rp kp n[200] re k p np n lv p. ~w, r kp o p p opp lr o nn, ƒ p ee, ll o p opp tp o ne } ~, l p }ppe kp. w, r p kp k r}p tn p k rs }l k r / /} l m, k r lp ee mm e rrp op}p. w, k p p l q tp p dž p veˆ kmm v p r l ll } v rr. vq~ k } s~ o oplr o rp ~. w, e o vl ol v p k r p s v np k e l o p p k rp o l o p n p p. 4. kh l l l vn r lp p kj p r kp op j p s, l t(vn, eq, n ) r kp r~ kj p r q m. p p nk p. ) l vn t r lp p 50 më 50 m(=0.0025 km 2 ) mlp r ml k j l kj p ( )p o edšp m. 2) kj p o ml p kj,,0 kgp kj l, o r ( km 2 ) kj p r 444,000 kg/km 2 p. 3) 3pp 2 s el 23.75 kg l pp o r ( km 2 ) kj p 36.67 kg/day/ km 2 p, 4pp 3 s el 4. kg l 400.0 kg/day/ kmp kj r p s 2 l. 4) mll kj t q p k p v p q 85.86%, p l 5.3%, dž 4.78%, j 2.34%, o 0.94%, p ƒp ~q 0.27% ˆ l. 5) vn t r kl p kj ˆp vn, eq, n l kj p r, vn k 65,72 kg, eq k 94,352 kg, n p k 79,698 kg r lp, l t r
54 pm Ë Ë ~ Ë ˆËo k l kj p r 239,760 kgp. 6) lp kj p p lr o rp s, r p, ƒ p p n r p n lv s r p n p s p. k l q lv mll v rp qs ˆp l kj r p r kn kj p rp m o e p l p f kj p lk p o l n lv. l 2006 r ( oprqo )p qop v q p vop k l (KRF-2006-33-D00700)p p p, l vol. l l l p m p [2 BK2 l]p vo kp. y [] s, 998, lklqp o m s l l, ll v, 34(3), 287-293. [2] s,, n, 2005, p k m s l l, k ol, 7(), 58-66. [3],,, 2000, v p j l s l, k v, 3(4), 9-98. [4] p, ov, l, }, or, 2002, k qo ()- k p l, k v, 5(2), 28-34. [5] vn, 2005, p p kj }, o k, 254, 4-47. [6], m, 2005, r vl kl j, v, 22(2), 203-22. [7] le, 2004, 03.ˆ kj } l l, 268-282. [8] q, 200, k (2000-200) e r} n, k o, k r o r2 r}o q, 37-52. [9], pt, p v, or, 200, kj p o l e l, k v, 4(), 47-62. [0] nse, 200, l k p t, s, 38(4), 50-55. [] or, o, t, o, 2002, e 4 l o p o s, k v, 5(3), 45-53. [2] or, p v, t, o,, 2002, op o p re, k v, 5(3), 3-9. [3] k, 2000-2002, k s } edš (I, II, III), l. 2007 7o 30p o r 2007 8o 2p r }ˆ