| Bivalve | MPI | Index Value | Degree of Pollution |
| Asiatic hard clam | 5.79 | 5 < MPI < 10 | Low contamination |
| Pacific oyster | 15.03 | 10 < MPI < 20 | Medium contamination |
| Marsh clam | 6.86 | 5 < MPI < 10 | Low contamination |
| Green-lipped mussel | 8.31 | 5 < MPI < 10 | Low contamination |