Table 4 Comparison of the median concentrations in our study versus NHANES (µg/L).

2CyEMA

present study (ESB)

1.96

1.25

1.14

0.825

0.824

0.863

NHANES

1.88

1.78

1.69

1.48

1.44

2HEMA

present study (ESB)

1.22

0.661

0.665

0.699

0.727

0.568

NHANES

<LOD^a

0.895

<LOD^a

<LOD^a

<LOD^a

3HMPMA

present study (ESB)

119

97.5

84.3

75.8

86.0

75.9

NHANES

231

248

222

248

214

BzMA

present study (ESB)

10.5

6.97

6.90

6.17

6.42

6.01

NHANES

6.62

6.31

6.24

6.16

5.75

PhMA

present study (ESB)

0.240

0.135

0.141

0.0965

0.125

0.0910

NHANES

<LOD^b

<LOD^b

<LOD^b

<LOD^b

2CaEMA

present study (ESB)

42.3

31.4

27.9

21.2

26.4

24.2

NHANES

56.3

45.2

45.8

51.6

51.8

2CaHEMA

present study (ESB)

8.30

6.45

6.55

5.45

4.90

NHANES

11.8

<LOD^c

<LOD^c

<LOD^c

MCaMA

present study (ESB)

104

68.9

67.5

58.4

54.9

48.4

NHANES

150

163

141

145

157

34HBMA

present study (ESB)

484

382

392

296

328

293

NHANES

294

281

267

348

350

2HPMA

present study (ESB)

17.4

13.8

13.3

11.9

15.5

12.0

NHANES

37.4

32.1

25.3

30.6

29.0

3HPMA

present study (ESB)

204

152

163

140

144

138

NHANES

247

220

210

249

246