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Table 2 TMFs calculated for different substances identified in the sampled food web of Lake Templin (Potsdam, Germany)

From: Food web on ice: a pragmatic approach to investigate the trophic magnification of chemicals of concern

Class

Substance/congener

TMF

95% CI

p-value

R2

Whole food web data available

Lipid-normalized data TMFs

 PCB

77

1.8

1.4–2.2

0.0001

0.706

 

81

1.6

0.7–3.4

0.2311

0.108

 

101

2.0

1.4–2.9

0.0007

0.603

 

105

2.1

1.5–2.9

0.0002

0.671

 

114

2.2

1.6–3.1

0.0003

0.647

 

118

2.1

1.5–3.0

0.0003

0.643

 

123

2.5

1.7–3.7

0.0002

0.657

 

126

2.3

1.6–3.2

0.0002

0.666

 

138

2.1

1.5–3.0

0.0004

0.634

 

153

2.2

1.5–3.2

0.0005

0.624

 

156

2.1

1.4–3.1

0.0017

0.543

 

157

2.1

1.4–3.1

0.0018

0.540

 

167

2.2

1.3–3.6

0.0049

0.469

 

180

2.0

1.3–3.1

0.0036

0.491

 

189

1.9

1.2–3.2

0.0134

0.386

 PBDE

49

1.7

1.3–2.2

0.0006

0.606

 

100

1.7

1.2–2.6

0.0110

0.403

 Organochlorine pesticides

p,p’-DDD

1.4

1.1–1.8

0.0117

0.398

 

p,p’-DDE

1.9

1.4–2.6

0.0007

0.603

 PCDD/F

2,3,7,8-TetraCDF

1.6

1.3–2.0

0.0001

0.686

Dry weight-normalized TMFs

 Mercury compounds

Total Hg

2.2

1.6–3.0

0.0001

0.690

 

MeHg

2.9

2.0–4.3

 < 0.0001

0.737

 PFAS

PFOS (linear)

3.0

1.8–4.8

0.0003

0.643

 

PFDoA

1.9

1.3–2.9

0.0037

0.489

No concentration > LOQ in mussels detected

Lipid-normalized data TMFs

 PCB

28

1.7

1.3–2.2

0.0005

0.624

 

52

2.0

1.5–2.6

0.0001

0.687

 PBDE

28

1.5

1.0–2.3

0.0657

0.237

 

47

2.3

1.4–3.7

0.0035

0.494

 

153

1.7

1.2–2.4

0.0044

0.477

 

154

1.8

1.2–2.8

0.0124

0.400

 Organochlorine pesticides

HCB

1.4

1.2–1.7

0.0012

0.564

 

β-HCH

1.5

1.1–2.0

0.0142

0.381

 PCDD/F

1,2,3,7,8-PentaCDF

1.5

1.0–2.1

0.0339

0.302

 

2,3,4,7,8-PentaCDF

1.5

1.0–2.1

0.0394

0.287

 

2,3,7,8-TetraCDD

1.1

0.7–1.8

0.5419

0.029

  1. 95% CI is the 95% confidence interval for the calculated TMF. Bold values: Significant correlation between TP and logarithm of normalized concentrations (p < 0.05). Mussel samples < LOQ were substituted with ½ LOQ value for the TMF calculation