| NBAP | National Bureau of Aquatic Products, Beijing | max. | maximum |
| min. | minimum | ||
| BAP | Bureau of Aquatic Products (regional) | av. | average |
| DAP | Department of Aquatic Products | No. | number |
| DFA | Department of Foreign Affairs | ppm | parts per million |
| t | metric ton | ||
| P.C. | People's Commune | tot. | total |
| A.R. | Autonomous Region | Y | yuan |
| A.D. | after Jesus Christ (Anno Domini) | ||
| A.C. | before Jesus Christ (Ante Christum) |
