Fig. 4.

Abundance of MPs in para-tumor and tumor tissues of human prostate using Py-GC/MS. (a) Concentrations of MPs in individual paired para-tumor and tumor tissues. (b) The abundance of PS, PP, PE and PVC in these 20 paired tissues. (c–f) Detection of PS (c), PP (d), PE (e), and PVC (f) in the tissues. (g–j) Detailed abundance of PS (g), PP (h), PE (i), and PVC (j) in each paired para-tumor and tumor tissue. PT: para-tumor and T: tumor. ∗∗∗p < 0.001 and data are analysed by paired t test. PS: polystyrene; PP: polypropylene; PE: polyethylene; PVC: polyvinyl chloride.