| Column | Value |
|---|---|
| source | <app.db.schema.LiteratureSource object at 0x7cf75877e840> |
| composition | (<app.db.schema.MatrixComposition object at 0x7cf75877f5f0>) (<app.db.schema.MatrixComposition object at 0x7cf75877e6c0>) (<app.db.schema.MatrixComposition object at 0x7cf75877d250>) (<app.db.schema.MatrixComposition object at 0x7cf75877e960>) (<app.db.schema.MatrixComposition object at 0x7cf75877f8c0>) (<app.db.schema.MatrixComposition object at 0x7cf75877f650>) (<app.db.schema.MatrixComposition object at 0x7cf75877c950>) (<app.db.schema.MatrixComposition object at 0x7cf75877c260>) |
| id | 9 |
| name | Packaged Meats |
| description | A reference exposure matrix representing MNP contamination in processed packaged meats (sausages, cold cuts, bacon and similar products). Contamination arises from two sources: mechanical processing (grinding and emulsification introduce fragments) and packaging materials (plastic wrap and trays shedding PE/PS particles, plus PVDC coatings). The profile is mixed rather than purely nano: about half of the abundance lies in the ultrafine and fine nano range, from packaging degradation and processing, and the remainder lies in the submicron and coarse range, from PE fragments released by the processing environment and PET/PP fibres from equipment and packaging. |
| matrix_type | Food |
| geographic_region | Europe (general) |
| notes | Demonstration matrix for dietary exposure via processed meats. Not empirically validated; the composition reflects known contamination pathways from processing and packaging. |
| source_id | 6 |
| created_at | 2026-05-17 20:02:12.574712 |
| updated_at | 2026-05-17 20:02:12.574713 |