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Table 5 Concentrations (μg/bidi) of polar compounds for different size fractions of the particulate phase of bidi smoke as measured by GC–MS analysis

From: Analysis of chemical constituents in mainstream bidi smoke

Compound

Filter

A (> 2.50 μm)

D (0.25–0.50 μm)

L (< 0.25 μm)

2-Methylphenol

0.65 ± 0.22

1.96 ± 0.17

13.26 ± 2.25

4-Methylphenol

3.35 ± 0.28

9.83 ± 3.14

15.93 ± 1.41

2-Methoxyphenol

1.20 ± 0.35

< DLa

45.33 ± 7.63

Indole

< DL

< DL

25.80 ± 4.94

Phytol

< DL

0.65 ± 0.06

20.86 ± 6.99

2,3-Dipyridyl

< DL

2.33 ± 0.21

46.74 ± 6.35

3-(3,4-dihydro-2H-pyrrol-5-yl)pyridine

0.67 ± 0.16

2.52 ± 0.67

52.08 ± 12.07

1H-Indole, 3-methyl

0.40 ± 0.01

0.38 ± 0.057

12.64 ± 1.075

Cotinine

0.30 ± 0.06

0.60 ± 0.12

32.60 ± 3.49

Vitamin E

< DL

0.74 ± 0.12

28.30 ± 4.83

Alpha-amyrin

2.30 ± 0.75

< DL

60.73 ± 4.49

Beta-amyrin

0.80 ± 0.22

< DL

56.36 ± 1.89

  1. The data are reported as “mean ± 1 standard deviation” for triplicate measurements
  2. a < DL: Below detection limit