Id: 10

Column Value
source <app.db.schema.LiteratureSource object at 0x7cf75906b500>
composition (<app.db.schema.MatrixComposition object at 0x7cf75906af30>) (<app.db.schema.MatrixComposition object at 0x7cf75906af00>) (<app.db.schema.MatrixComposition object at 0x7cf75906be90>) (<app.db.schema.MatrixComposition object at 0x7cf7590699a0>) (<app.db.schema.MatrixComposition object at 0x7cf75906b590>)
id 10
name European Housedust — Durkin 2026 (Py-GC/MS, mass-based)
description Mass-weighted household dust composition derived from Durkin et al. (2026), a repeated passive-deposition study of 105 homes in the Netherlands analysed by Py-GC/MS (total geometric mean deposition 35.06 µg/m²/day, GSD 2.69). Shares are mass-based and are used as abundance weights only; the source method does not resolve particle number, size or morphology, which are inherited from the European Housedust Reference. Intended for sensitivity analysis rather than as a default matrix.
matrix_type House Dust
geographic_region The Netherlands
notes n = 105 women, two sampling rounds three months apart; passive glass petri dish deposition at ~1.2 m; Py-GC/MS targeting nine polymer clusters. Mass shares: PET 79.7%, PP 6.2%, PE 6.2%, PS 2.1%, PC 0.14% (PC derived from geometric mean 0.05 of 35.06 µg/m²/day). Approximately 5.7% of mass is unallocated (C-PMMA and C-PA6; detection frequencies only). C-PVC excluded (cotton interference); C-MDI-PUR not detected. Mass-based shares are not interchangeable with particle-number shares without a particle size assumption.
source_id 7
created_at 2026-10-15 09:41:01.896355
updated_at 2026-10-15 09:41:01.896360