Table 4.

Concentrations of nicotine (mg/bidi) for different size fractions of the particulate phase of bidi smoke as measured by GC–MS analysis

Bidi/cigarette	Filter
	A (> 2.50 μm)	B (1.0–2.50 μm)	C (0.50–1.0 μm)	D (0.25–0.50 μm)	L (< 0.25 μm)
Grape bidi	0.39 ± 0.005	0.17 ± 0.002	0.16 ± 0.001	0.65 ± 0.006	18.21 ± 0.12
Vanilla bidi	0.66 ± 0.019	0.17 ± 0.003	0.11 ± 0.001	0.60 ± 0.001	20.20 ± 0.23

The data are reported as “mean ± 1 standard deviation” for triplicate measurements