| Column | Value |
|---|---|
| matrix | <app.db.schema.ExposureMatrix object at 0x7cf758cd1ca0> |
| particle | <app.db.schema.ParticleCharacterisation object at 0x7cf758cd3920> |
| size_distributions | (<app.db.schema.ParticleSizeDistribution object at 0x7cf758cd1e50>) |
| id | 32 |
| matrix_id | 5 |
| particle_id | 15 |
| fractional_abundance | 0.01 |
| size_bin_min_nm | 1.0 |
| size_bin_max_nm | 50.0 |
| notes | Trace ultrafine; only 1%. |