Table 3.

Comparison of typical additive concentrations in plastic fibers and other shapes of plastics

Additives	Concentration of additives in fibers	Reference	Concentration of additives in plastics	Reference
	PP fibers (face masks)	Liu and Mabury (2021)	PP plastic fragments	Rani et al. (2017)
AO1010	0.0898–65.4 μg/g		17–155 μg/g
AO1076	0–49.9 μg/g		0–169 μg/g
BHT	0–2.38 μg/g		0.02–1.0 μg/g
2,4-DTBP	0–22.5 μg/g		0.64–11 μg/g
∑ phenolic antioxidants	4.44–91.5 μg/g		53.2–200.3 μg/g
	PP fibers (face masks)		PP flakes and fragments	Zhang et al. (2018)
PAEs	115–37,700 ng/g	Xie et al. (2022)	0.29–27.2 ng/g
OPEs	9.71–5835 ng/g	Fernandez–Arribas et al. (2021)	6.38–2377.5 ng/g