Table 1 Summary of the on-site degradation test site
From: Microbial decomposition of biodegradable plastics on the deep-sea floor
Site | Abbr. | Latitude | Longitude | Depth | Salinity | Temp. | DO | Deployment | Recovery | Period | Abbr. | Sample |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
N | E | m |  | °C | mg/L | yyyy/mm/dd | yyyy/mm/dd | Days | ||||
Port of JAMSTEC Yokosuka Headquarters | PJM | 35°19.18 | 139°39.05 | 2-6 | 30.0 | 25.5 | 5.7 | 2019/09/30 | 2020/10/03 | 369 | PJM12 | Injection molded |
2-6 | 30.3 | 25.4 | 5.0 | 2021/08/08 | 2021/10/08 | 61 | PJM02 | Film | ||||
Bathyal hydrocarbon seepage off Hatsushima island | BHT | 35°0.95 | 139°13.33 | 855 | 34.5 | 3.6 | 1.8 | 2019/09/12 | 2020/01/07 | 117 | BHT04 | Injection molded |
2019/09/12 | 2020/11/16 | 431 | BHT14 | Injection molded | ||||||||
2021/02/05 | 2021/05/11 | 95 | BHT03 | Film | ||||||||
2021/02/05 | 2021/10/13 | 250 | BHT08 | Film | ||||||||
Bathyal seafloor off Misaki port | BMS | 35°4.20 | 139°32.50 | 757 | 34.3 | 4.4 | 2.1 | 2021/05/12 | 2021/10/12 | 153 | BMS05 | Film |
Bathyal hydrothermal vent in Myojin knoll | BMJ | 32°6.30 | 139°52.17 | 1292 | 34.3 | 4.6 | 2.1 | 2021/05/21 | 2021/10/07 | 139 | BMJ05 | Film |
Abyssal plain near Kuroshio extension observatory | AKR | 32°34.78 | 143°46.14 | 5503 | 34.7 | 1.6 | 5.2 | 2021/05/20 | 2021/10/06 | 139 | AKR05 | Film |
Abyssal plain around Minamitorishima island | AMN | 22°59.93 | 154°24.55 | 5552 | 34.7 | 1.5 | 5.0 | 2020/03/15 | 2021/04/09 | 390 | AMN13 | Injection molded |
