| Column | Value |
|---|---|
| matrix | <app.db.schema.ExposureMatrix object at 0x7cf75849b0b0> |
| particle | <app.db.schema.ParticleCharacterisation object at 0x7cf75849b410> |
| size_distributions | (<app.db.schema.ParticleSizeDistribution object at 0x7cf75849af00>) |
| id | 67 |
| matrix_id | 10 |
| particle_id | 2 |
| fractional_abundance | 0.8448 |
| size_bin_min_nm | 50000.0 |
| size_bin_max_nm | 200000.0 |
| notes | PET, 79.7% of total polymer mass (Durkin et al. 2026). Mass-based share; size bin inherited and not resolved by the source method. |