Evaluation of Service Life of Polystyrene in Tropical Marine Environment by Principal Component Analysis

Figure 1

Surface morphology of PS exposed in Xisha Island: (a) original sample; (b) 1-month exposure; (c) 3-month exposure; (d) 6-month exposure; (e) 9-month exposure; (f) 12-month exposure; (g) 18-month exposure; (h) 24-month exposure.

(a)

(b)

(c)

(d)

(e)

(f)

(g)

(h)