Blood (mg/l)

Outdoor workers

18 - 35

62.0 ± 5.50

59.4 - 65.0

37.0 ± 3.88

35.2 - 38.7

32.9 ± 1.90

31.0 - 34.8

36.6 ± 3.45

34.9 - 39.4

35.8 ± 1.39

35.1 - 36.7

35.3 ± 3.31

33.6 - 37.6

p-values

……

0.004

0.002

0.003

0.003

0.003

Indoor workers

______

32.4 ± 3.90

30.5 - 35.0

31.7 ± 3.32

29.8 - 33.5

32.7 ± 4.55

30.3 - 35.2

31.9 ± 2.98

29.5 - 33.7

30.6 ± 1.34

29.8 - 31.5

p-values

……

0.002

0.002

0.002

0.002

0.002

Outdoor workers

36 - 55

56.2 ± 7.24

52.9 - 60.3

34.4 ± 5.36

31.8 - 37.2

31.9 ± 4.43

29.6 - 34.3

33.2 ± 3.81

31.5 - 35.0

34.1 ± 1.87

32.3 - 36.0

31.8 ± 4.24

29.7 - 34.2

p-values

……

0.003

0.002

0.002

0.002

0.002

Indoor workers

______

30.8 ± 4.48

28.5 - 33.0

28.7 ± 3.50

26.9 - 30.5

30.8 ± 3.41

29.0 - 31.8

30.0 ± 2.94

28.5 - 31.6

27.8 ± 2.39

25.6 - 30.0

p-values

……

0.001

0.001

0.002

0.002

0.001

Lead

Scalp hair (µg/g)

Outdoor workers

18 - 35

6.54 ± 0.52

6.21 - 6.97

11.7 ± 1.62

10.5 - 12.9

12.0 ± 1.92

10.3 - 14.6

11.3 ± 1.50

10.0 - 12.7

12.6 ± 1.75

11.0 - 14.4

13.0 ± 1.39

12.0 - 14.2

p-values

……

0.001

0.001

0.001

0.001

0.001

Indoor workers

______

13.9 ± 2.07

11.4 - 15.6

14.5 ± 1.40

13.3 - 15.8

13.7 ± 1.28

12.5 - 14.6

14.9 ± 1.80

13.3 - 16.9

15.9 ± 2.19

14.6 - 17.5

p-values

……

0.001

0.001

0.001

0.001

0.001

Outdoor workers

36 - 55

7.91 ± 0.70

7.55 - 8.25

13.7 ± 2.0

12.8 - 14.6

14.3 ± 2.3

13.1 - 15.5

13.5 ± 1.6

12.0 - 14.3

14.8 ± 1.9

13.9 - 15.8

15.6 ± 2.57

14.3 - 16.9

p-values

……

0.001

0.001

0.001

0.001

0.001

Indoor workers

______

15.4 ± 2.58

14.1 - 16.7

16.0 ± 1.5

15.3 - 16.8

14.5 ± 1.6

13.9 - 15.2

16.3 ± 1.9

15.4 - 17.2

16.5 ± 2.08

15.4 - 17.5

p-values

……

0.001

0.001

0.001

0.001

0.001

Blood (µg/l)

Outdoor workers

18 - 35

165 ± 9.25

158 - 173

290 ± 8.25

285 - 296

284 ± 13.7

276 - 292

295 ± 16.2

284 - 304

307 ± 19.3

295 - 315

320 ± 11.6

313 - 325

p-values

……

0.001

0.001

0.001

0.001

0.001

Indoor workers

______

339 ± 13.7

328 - 346

325 ± 18.5

316 - 336

319 ± 20.5

308 - 330

345 ± 25.5

327 - 357

352 ± 18.7

343 - 360

p-values

……

0.001

0.001

0.001

0.001

0.001

Outdoor workers

36 - 55

197 ± 8.73

193 - 202

340 ± 11.7

335 - 346

328 ± 16.2

319 - 335

318 ± 19.4

310 - 329

344 ± 28.5

330 - 359

350 ± 19.8

340 - 360

……

0.001

0.001

0.001

0.001

0.001

Indoor workers

______

352 ± 9.28

346 - 358

351 ± 20.2

340 - 3362

338 ± 22.9

325 - 350

357 ± 26.5

342 - 372

395 ± 18.5

386 - 405

0.001

0.001

0.001

0.001

0.001