Table 3 Overview of all identified plastic associated chemicals and in which type of microplastics sample they were detected

 Bis(1-chloro-2-propyl)-3-(3-chloropropoxy)propylphosphate

137,888–37-0

ENV-1, ENV-3

no

 Bis(3-chloro-1-propyl)(1-chloro-2-propyl)phosphate

137,888–35-8

ENV-1, ENV-3

yes

n.d.

n.d.

n.d.

n.d.

 Hexabromocyclododecane

25,637–99-4

ENV-1, ENV-3

yes

n.d.

n.d.

n.d.

n.d.

 Pentabromocyclododecane

26,657–83-0

ENV-1, ENV-3

yes

n.d.

n.d.

n.d.

n.d.

 Triethylphosphate

78–40-0

ENV-1,

yes

n.d.

n.a.

n.a.

90.5

 Triisobutylphosphate

126–71-6

ENV-1, ENV-3, PA, PVC

yes

78.9

n.a.

n.a.

43.8

 Tri-m-tolylphosphate

563–04-2

ENV-1,

yes

n.a.

18.2

n.a.

57.1

 Tri-o-tolylphosphate

78–30-8

ENV-1, ENV-3,PS

yes

285

13.8

23.7

1.82

 Triphenylphosphate

115–86-6

ENV-1, ENV-3

yes

n.d.

18.4

25.3

7.31

 Tri-p-tolylphosphate

78–32-0

ENV-1, ENV-3

yes

n.d.

n.d.

n.d.

n.d.

 Tris(1-chloro-2-propyl)phosphate

13,674–84-5

ENV-1, ENV-3, PA, PE, PP-1, PP-2, PS, PVC

yes

n.d.

n.d.

n.a.

n.a.

 Tris(2-chloroethyl)phosphate

115–96-8

ENV-1, ENV-3

yes

n.d.

n.d.

n.a.

n.a.

 Tris(2-chloropropyl)phosphate

6145-73-9

ENV-1, ENV-3,PA, PE, PP-1, PP-2, PVC

yes

n.a.

n.a.

n.a.

n.a.

 1,4-Benzenedicarboxylic acid, bis(2-ethylhexyl) ester

6422-86-2

ENV-1, ENV-3

yes

68.9

n.d.

n.a.

n.a.

 Bis(2-ethylhexyl) phthalate

117–81-7

ENV-1, ENV-3, PA, PE, PET, PP-1, PP-2, PS, PVC

yes

n.d.

n.d.

52.1

59.5

 Dibutyl phthalate

84–74-2

ENV-1, ENV-3, PA, PP-1, PP-2, PVC

yes

n.d.

50.9

58

32.8

 Diisooctyl adipate

1330–86-5

ENV-1,

yes

n.d.

n.d.

3.38

n.d.

 Diisooctyl phthalate

27,554–26-3

ENV-1, ENV-3

yes

n.d.

n.d.

n.d.

n.d.

 Phthalic acid, 2-ethylbutyl nonyl ester

n.a.

ENV-3,

 Phthalic acid, 6-methylhept-2-yl nonyl ester

n.a.

ENV-1,

 Phthalic acid, di(2-propylpentyl) ester

70,910–37-1

PA, PET, PP-1, PP-2, PVC

yes

n.d.

n.d.

n.d.

n.d.

 Phthalic acid, di (oct-3-yl) ester

n.a.

ENV-3, PE

no

 Phthalic acid, hept-3-yl nonyl ester/phthalic acide hexyl nonyl ester

88,216–56-2

ENV-1, ENV-3

yes

n.d.

n.d.

n.d.

n.d.

 Phthalic acid, hept-4-yl isobutyl ester

n.a.

PA, PVC

no

 Phthalic acid, nonyl 2-propylpentyl ester/ phthalic dinonyl ester

84–76-4

ENV-1, ENV-3

yes

n.d.

n.d.

3.4

n.d.

 2-Ethylhexyl methyl isophthalate

2,135,327–80-7

ENV-1,

yes

n.d.

n.d.

n.d.

n.d.

 Tributyl acetylcitrate

693–71-0

PET

yes

n.d.

n.d.

n.d.

n.d.

 (Z)-(Z)-Hex-3-en-1-yl 2-methylbut-2-enoate

84,060–80-0

ENV-1,

no

 1,15-Pentadecanediol

14,722–40-8

PE

yes

n.d.

n.d.

n.d.

n.d.

 1,8-Diazacyclotetradecane-2,9-dione (=nylon-6 cyclic oligomer)

56,403–09-9

PA

yes

n.d.

n.d.

n.d.

n.d.

 1H-Imidazole

288–32-4

ENV-1

yes

n.d.

n.d.

n.d.

n.d.

 2,4-Di-tert-butylphenol

96–76-4

ENV-1, ENV-3

yes

n.d.

36.9

12.4

41

 2-Ethyl-1-hexanol

104–76-7

ENV-1,

yes

n.d.

n.d.

n.d.

n.d.

 3-(Benzoylthio)-2-methylpropanoic acid

74,431–50-8

ENV-3,

 3,3-Dimethylheptanoic acid

67,061–30-7

PVC

 3,5-di-tert-Butyl-4-hydroxybenzaldehyde

1620-98-0

ENV-1,

yes

n.d.

n.d.

n.d.

n.d.

 3-tert-Butyl-4-hydroxyanisole

121–00-6

PVC

yes

n.d.

42.4

13.1

2.46

 Alkylated benzenes

n.a.

PS

no

 Benzaldehyde

100–52-7

PS

yes

n.d.

n.d.

n.d.

n.d.

 Benzene, 1-(chloromethyl)-2-methyl

552–45-4

PVC

yes

n.d.

n.d.

n.d.

n.d.

 Benzene, 1,3-bis(1,1-dimethylethyl)-

1014-60-4

ENV-1, ENV-3

yes

n.d.

n.d.

n.d.

n.d.

 Benzoic acid, octyl ester

94–50-8

PVC

yes

n.d.

n.d.

n.d.

n.d.

 Borane, diethyl (decyloxy)

25,015–63-8

PP-1

yes

n.d.

n.d.

n.d.

n.d.

 Butanedioic acid, dimethyl ester

106–65-0

PVC

yes

1.49

n.d.

n.d.

n.d.

 Butylated Hydroxytoluene

128–37-0

ENV-1, ENV-3

yes

n.d.

49.2

0.112

21

 Caprolactam (=nylon-6 monomer)

105–60-2

PA

yes

n.d.

n.d.

68

30.8

 Hexanedioic acid, bis(2-ethylhexyl) ester

103–23-1

PVC

yes

n.d.

n.d.

93

10.9

 Hexanedioic acid, bis(2-methylpropyl) ester

141–04-8

ENV-3,

yes

n.d.

n.d.

n.d.

8.25

 Hexanedioic acid, dimethyl ester

627–93-0

PVC

yes

n.d.

60.6

n.d.

n.d.

 Linoelaidic acid

506–21-8

ENV-1,

yes

n.d.

n.d.

n.d.

n.d.

 n-Hexadecanoic acid

57–10-3

PP-1, PP-2

yes

n.d.

n.d.

n.d.

7.46

 Octadecane, 1-isocyanato-

112–96-9

PA

yes

n.d.

n.d.

n.d.

n.d.

 Octadecanoic acid

57–11-4

PP-1, PP-2

yes

n.d.

n.d.

12.1

2.3

 Octanal, 2-(phenylmethylene)-

101–86-0

ENV-1,

yes

56.6

30.9

2.97

35.5

 Oxalic acid, allyl butyl ester

91,915–04-7

PVC

yes

n.d.

n.d.

n.d.

n.d.

 Pentanedioic acid, dimethyl ester

1119-40-0

PVC

yes

n.d.

n.d.

n.d.

n.d.

 Styrene

100–42-5

PS

yes

n.d.

n.d.

n.d.

n.d.

 Tetrazolo[1,5-b]1,2,4-triazine, 5,6,7,8-tetrahydro-6,7-dimethyl-

384,814–90-8

PA

 Acenaphtene

83–32-9

ENV-1, ENV-3

yes

n.d.

n.d.

n.d.

24.9

 Acenaphtylene

208–96-8

ENV-1,

yes

91.5

n.d.

n.d.

n.d.

 Antracene

120–12-7

ENV-1, PP-1, PP-2

yes

n.d.

n.d.

22.3

24.1

 Benz [a]anthracene

56–55-3

ENV-1, ENV-3

yes

n.d.

1.17

5.77

1.45

 Chrysene

218–01-9

ENV-1, ENV-3

yes

7.86

28.2

n.d.

n.d.

 Fluoranthene

206–44-0

ENV-1, ENV-3

yes

67

n.d.

5.83

46.2

 Fluorene

86–73-7

ENV-1, ENV-3, PE

yes

n.d.

70.1

18.1

0.436

 Naphtalene

91–20-3

ENV-1, ENV-3, PP-1, PP-2, PVC

yes

n.d.

n.d.

n.d.

0.655

 Phenanthrene

85–01-8

ENV-1, ENV-3,PP-1, PP-2

yes

n.d.

20.7

0.002

n.d.

 Pyrene

129–00-0

ENV-1, ENV-3

yes

n.d.

3.32

n.d.

n.d.