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Table 2 Baseline OH-PAHs levels (ng/g creatinine) and OH-PAHs’ half-lives from reference 27

From: Studying the effectiveness of activated carbon R95 respirators in reducing the inhalation of combustion by-products in Hanoi, Vietnam: a demonstration study

OH-PAH

Median half-life t 1/2,from ref 27

Size

Median ng/g creat

IQR*

1-hydroxynaphthalene

4.3

44

6172

4297 - 11220

1-hydroxyphenanthrene

5.1

44

562

418 - 839

1-hydroxypyrene

3.9

44

1020

604 - 1551

2-hydroxyfluorene

2.9

44

811

575 - 1106

2-hydroxynaphthalene

2.5

44

7051

5138 - 11820

2-hydroxyphenanthrene

3.9

44

358

254 - 534

3-hydroxyfluororene

6.1

44

284

162 - 450

3-hydroxyphenanthrene

4.1

44

475

288 - 833

4-hydroxyphenanthrene

3.5

44

102

75 - 146

9-hydroxyfluorene

3.1

44

1400

1018 - 1822

  1. *IQR: interquartile range.