| Sample | MP-BL-004 |
| Plastic Type | Unidentified |
| Pigment | Pigment Blue 66 (PB66) |
| Color | Blue |
| Source | River – Arieș River, Baia de Arieș, Romania |
| Microscopic image(s) |  |
| Microplastic shape | Fiber |
| Spectral Data type | Raman |
| Raman spectrum acquisition parameters | Laser wavelength: 785 nm Laser Power: 15 mW Exposure time: 10 s Objective magnification: 20X (NA 0.35) Spectrum range: 800-1800 cm-1 |
