Figure 1.

Raman spectra of microplastics found in the filters of samples of internal tissues of different companion animals: (A,B) polypropylene particle in cat liver; (C) polyethylene terephthalate particle in cat ileum; (D) polyethylene terephthalate in cat blood clot; (E) polypropylene particle in dog lung; (F) polyethylene terephthalate particle in dog lung. Edited in Adobe Photoshop CS6 to improve brightness and contrast by 50 and 30, respectively. Original colors can be found in Figure S2, Supplementary Materials.