| 年份 | 监测点个数 | 海洋漂浮垃圾 | 海滩垃圾 | 海底垃圾 | ||||||
| 数量(个/km2) | 密度(kg/km2) | 塑料占比% | 数量(个/km2) | 密度(kg/km2) | 塑料占比% | 数量(个/km2) | 密度(kg/km2) | 塑料占比% | ||
| 2016 | 45 | 20 + 2235 | 65 | 84 | 70345 | 1971 | 68 | 1180 | 671 | 64 |
| 2017 | 49 | 20 + 2845 | 22 | 87 | 52123 | 1420 | 76 | 1434 | 43 | 74 |
| 2018 | 57 | 21 + 2358 | 24 | 88.7 | 60761 | 1284 | 77.5 | 1031 | 18 | 88.2 |
| 2019 | 49 | 50 + 4027 | 6.8 | 84.1 | 280043 | 1828 | 81.7 | 6633 | 15.9 | 92.6 |
| 2020 | 49 | 27 + 5363 | 9.6 | 85.7 | 216689 | 1244 | 84 | 7348 | 12.6 | 83.1 |
| 2021 | 51 | 24 + 4580 | 3.6 | 92.9 | 154816 | 1849 | 75.9 | 4770 | 11.1 | 83.3 |
| 2022 | 60 | 65 + 2859 | 2.8 | 86.2 | 54772 | 2506 | 84.5 | 2947 | 54.7 | 86.8 |