2018_Details of survey locations

	A	B	C	D	E	F	G	H	I	J	K	L	M	N	O	P	Q	R	S	T
1	Water system	River or port area	Location	Latitude	Longitude	Collecting date of solid samples	Collecting time of solid samples	Volume of water collected(L)	PE(Number of pieces)	PP(Number of pieces)	PEorPP(Number of pieces)	PA(Number of pieces)	Acrylic resin (Number of pieces)	PE(Number of pieces / ㎥)	PP(Number of pieces / ㎥)	PEorPP(Number of pieces / ㎥)	PA(Number of pieces / ㎥)	Acrylic resin (Number of pieces / ㎥)	Total(Number of pieces / ㎥)

2	Tonegawa River	Nakagawa River	In the vicinity of Kamihirai Bridge	35.724367	139.843483	2018/05/06	10:30	20826	7	5		1		0.34	0.24	0	0.05	0	0.62
3	Tonegawa River	Nakagawa River	In the vicinity of Shinkoiwa Park	35.714929	139.851946	2018/06/03	11:50	17453	1	1				0.06	0.06	0	0	0	0.11
4	Tonegawa River	Nakagawa River	In the vicinity of Arakawa river junction	35.660999	139.850663	2018/06/03	9:50	15622	23	2		1		1.47	0.13	0	0.06	0	1.66
5	Tonegawa River	Ayasegawa River	Nishibukuro Bridge	35.81556	139.823105	2018/05/06	15:25	16592	137	13		1		8.26	0.78	0	0.06	0	9.1
6	Tonegawa River	Ayasegawa River	Ukihana Bridge	35.795362	139.823346	2018/06/03	14:10	22433	11	4				0.49	0.18	0	0	0	0.67
7	Tonegawa River	Ayasegawa River	Higashiyotsugi Escape Bridge	35.7276	139.837302	2018/05/06	12:00	19648	12	2		1		0.61	0.1	0	0.05	0	0.76
8	Arakawa River	Arakawa River	In the vicinity of the river mouth	35.648133	139.840997	2018/09/12	14:30	13177	38	21				2.88	1.59	0	0	0	4.48
9	Arakawa River	Sumidagawa River	In the vicinity of Shinkamiya Bridge	35.769614	139.737441	2018/06/03	15:45	13481	8	2				0.59	0.15	0	0	0	0.74
10	Arakawa River	Sumidagawa River	In the vicinity of Otake Bridge	35.7526	139.787135	2018/06/03	16:45	9087	3	2				0.33	0.22	0	0	0	0.55
11	Arakawa River	Sumidagawa River	In the vicinity of Shioiri Park	35.738457	139.813888	2018/06/03	18:00	1202	2					1.66	0	0	0	0	1.66
12	Megurogawa River	Megurogawa River	In the vicinity of the river mouth	35.618373	139.749326	2018/08/03	10:20	27501	21	12				0.76	0.44	0	0	0	1.2
13	Tamagawa River	Tamagawa River	Tamasuidō Bridge	35.62483	139.568637	2018/09/17	9:30	11825	4	2				0.34	0.17	0	0	0	0.51
14	Tamagawa River	Tamagawa River	Maruko Bridge	35.585001	139.668437	2018/09/17	10:30	7755	4	2				0.52	0.26	0	0	0	0.77
15	Tamagawa River	Tamagawa River	Daishi Bridge	35.544409	139.741585	2018/09/17	11:40	13802		2				0	0.14	0	0	0	0.14
16	Tsurumigawa River	Yagamigawa River	In the vicinity of Yagami Bridge	35.55155	139.657441	2018/09/17	14:30	9513	4	3				0.42	0.32	0	0	0	0.74
17	Tsurumigawa River	Yagamigawa River	Yagamigawa Bridge	35.541715	139.654302	2018/09/17	13:40	11126						0	0	0	0	0	0
18	Tsurumigawa River	Tsurumigawa River	Sueyoshi Bridge	35.533876	139.666763	2018/09/17	13:10	11740	5	2				0.43	0.17	0	0	0	0.6
19	Tokyo Bay	Tokyo Bay	Mizunohiroba Park	35.629757	139.791895	2018/07/09	10:20	11024	127	62		4	1	11.52	5.62	0	0.36	0.09	17.6	More than 3,500 pieces of solid materials were extracted from the samples collected in a single survey of Tokyo Bay (Mizunohiroba Park). As it was unrealistic to analyze every single piece, approximately 200 pieces of different sizes were selected at random for analysis. This suggests that if we had analyzed every piece of solid material collected, it is highly likely that this value will be larger.
20	Tokyo Bay	Tokyo Bay	Tamagawa River, in the vicinity of the river mouth	35.521949	139.796111	2018/08/28	11:35	15048	9	1				0.6	0.07	0	0	0	0.66
21	Tokyo Bay	Tokyo Bay	In the vicinity of Keihin Canal	35.506549	139.781897	2018/08/28	10:55	10253	1	1				0.1	0.1	0	0	0	0.2
22	Tokyo Bay	Tokyo Bay	In the vicinity of Kaze no tō	35.490184	139.83197	2018/08/28	11:15	8823	3	2				0.34	0.23	0	0	0	0.57
23	Tokyo Bay	Keihin Canal	South of Chidori Park (Northern section)	35.510298	139.762534	2018/08/28	10:20	9520				3		0	0	0	0.32	0	0.32
24	Tokyo Bay	Keihin Canal	South of Chidori Park (Central section)	35.508329	139.762809	2018/08/28	10:30	10487				1		0	0	0	0.1	0	0.1
25	Tokyo Bay	Keihin Canal	South of Chidori Park (Southern section)	35.506355	139.763056	2018/08/28	10:40	10300	2	2				0.19	0.19	0	0	0	0.39
26	Tokyo Bay	Keihin Canal	Boundary along Yokohama and Kawasaki	35.488524	139.713573	2018/08/28	11:55	11723	9	8		2		0.77	0.68	0	0.17	0	1.62
27	Tokyo Bay	Chidori Canal	In front of Kawasaki City Port Passenger Waiting Room	35.52144	139.751648	2018/08/28	12:30	10786	26	14				2.41	1.3	0	0	0	3.71
28	Yodogawa River	Kanzakigawa River	Eguchi Bridge	34.756982	135.551181	2018/06/09	10:15	4237	1					0.24	0	0	0	0	0.24
29	Yodogawa River	Kanzakigawa River	Shinmikuni Bridge	34.737316	135.480851	2018/06/09	11:40	11339	6	3	1	15		0.53	0.26	0.09	1.32	0	2.2
30	Yodogawa River	Kanzakigawa River	Tsukuda Fureai Park	34.713042	135.44874	2018/06/09	13:15	14745	3	1				0.2	0.07	0	0	0	0.27
31	Yodogawa River	Ōkawa River	In the vicinity of Sakuranomiya Bridge	34.697941	135.523117	2018/06/09	16:45	12900	21					1.63	0	0	0	0	1.63
32	Yodogawa River	Ōkawa River	Minamitenman Park	34.691515	135.516459	2018/06/09	15:25	10311	11	9				1.07	0.87	0	0	0	1.94
33	Yodogawa River	Ōkawa River	In the vicinity of Tamae Bridge	34.693231	135.488859	2018/06/09	16:05	9633	180	11				18.69	1.14	0	0	0	19.83
34	Yodogawa River	Dōtonborigawa River	In the vicinity of Ōte Bridge	34.686791	135.509643	2018/06/10	9:00	7244	3					0.41	0	0	0	0	0.41
35	Yodogawa River	Dōtonborigawa River	Kamiyamato Bridge	34.669265	135.510612	2018/06/10	9:45	14245		1				0	0.07	0	0	0	0.07
36	Yodogawa River	Dōtonborigawa River	Shiomi Bridge	34.670141	135.486789	2018/06/10	10:25	12064	1					0.08	0	0	0	0	0.08
37	New York City	East River	East River Park	40.720019	-73.973129	2018/07/29	15:30	7779	8	2				1.03	0.26	0	0	0	1.29
38	New York City	Hudson River	Riverside Park	40.779874	-73.989619	2018/07/30	14:20	12439	2	1				0.16	0.08	0	0	0	0.24
39	New York City	Upper Bay	Louis Valentino, Jr. Park and Pier	40.678424	-74.0191972	2018/07/29	14:00	15652	5	2				0.32	0.13	0	0	0	0.45
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