Table 3.
Silver content and size in selected plastic products.
| Product type | Product component |
Total Ag ICP (mg/kg) (mean ± standard error) |
Size and/or composition by SEM/EDX |
Size by TEM/EDX (nm) |
Size by UV–vis (nm) |
|---|---|---|---|---|---|
| Breast milk storage bags | Average | 0.9 ± 0.6 | ND | NA | ND |
| Kitchen scrubber | Dry | 4.6 ± 0.3 | ND | NA | ND |
| Plush toy | Interior foam | 96±3 | ND | NA | ND |
| Plush toy | Interior foam (averaged) |
48 ±5 | ND | 20(ashed) | ND |
| Plush toy | Exterior fur | 0.6 ±0.1 | ND | NA | ND |
| Sippy cup | Rubber ring | 24±3 | 1 μm | NA | ND |
| Sippy cup | Transparent cap | 9±1 | ND | NA | ND |
| Sippy cup | Cup rim | 4.9 ± 0.2 | ND | NA | ND |
| Sippy cup | Cup body | ND | ND | NA | ND |
| Tooth brush | Bristles | 858* | ND | NA | ND |
NA, not applicable; ND, not determined.
*
Pilot study data, no replicates.