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Table 6 Physical properties and concentrations of selected bidi smoke components in vapor and particulate phases

From: Analysis of chemical constituents in mainstream bidi smoke

Compound Vapor pressure (mm Hg) Solubility in water (g/L) Henry’s constant (atm m3/mol) Gas phase conc. (μg/piece) TPM conc. (μg/piece)a Ratio (gas/TPM)
2-Methylphenol 29.90 × 10−2 31.80 1.20 × 10−6 5.37 15.87 0.33
4-Methylphenol 11.00 × 10−2 23.10 1.00 × 10−6 15.10 29.11 0.51
2-Methoxyphenol 10.30 × 10−2 18.70 1.20 × 10−6 17.10 46.53 0.36
Cotinine 8.55 × 10−5 ISb 3.33 × 10−12 9.99 33.50 0.30
  1. aTPM conc.: Total particulate matter concentration (sum of concentrations from filters A-L)
  2. bIS: Insoluble