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Microplastics and Nanoplastics

Table 3 PNEC values for microplastics and organic micropollutants in road runoff

From: Environmental risks of car tire microplastic particles and other road runoff pollutants

Pollutantc

PNEC Surface water (μg/l)

PNEC Sediment (μg/kgdw)

Reference

TWPMP

0.33a

100a

[65]

BaP

0.00017

1830

[86, 87]

BPA

1.5

63

[88]

DEHP

1.3

100,000

[87, 89]

DIDP

0.6

3300

Derivedb

Fl.

0.0063

2000

[87, 90]

HMMM

54

133

[91], Derivedb

MBT

4

147

[92]

NP

0.3

4620

[87, 93]

OP

0.1

1.61

[87, 94]

TT

8

3

[95]

  1. aPNEC values for microplastics (MP) available in the literature were used to represent the PNEC for TWP, i.e. TWPMP. It should be noted that the PNEC for MP has a limited reliability due to heterogeneity of the tested microplastic considering polymer type, size and shape
  2. bPNEC is not available in literature and thus derived using available toxicological data and extrapolation factors (for surface water) or the equilibrium method (for sediment), see Supporting information (Table S6, page 17–22)
  3. cPollutants: MP Microplastics, BaP Benzo(a) pyrene, BPA Bisphenol A, DEHP Di (2-ethylhexyl) phthalate, DIDP Diisodecyl phthalate, Fl. Fluoranthene, HMMM Hexa (methoxymethyl) melamine, MBT Mercaptobenzothiazole, MP Microplastics, NP Nonylphenol, OP 4-tert-octylphenol, TWP Tire Wear Particles, TT Tolyltriazole
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