Table 2.

Calculated whole lung dosimetry for the three age groups and particle sizes.

	$d_p$ $\mathrm{\mu }$m	$De{p}_T$ $\%$	$\frac{De{p}_T\times TV}{A_{\mathit{FRC}}}$ $\%-mL/c{m}^2$	$De{p}_T\times TV\times RR$ $\%-L/s$	$\frac{De{p}_T}{\mathit{BSA}}$ $\%-L/s-m^2$	$De{p}_T\times \frac{\mathit{TV}}{T{V}_A}$ $\%$	$\frac{De{p}_C}{A_C}$ $\%/c{m}^2$	$\frac{De{p}_R}{A_R}$ $\%/c{m}^2$
Infant	1	44.9	0.070	1.45	4.68	4.5	4.40E−2	77E−5
	3	87.1	0.135	2.82	9.10	8.7	15.0E−2	55E−5
	5	98.5	0.153	3.19	10.29	9.9	20.0E−2	7.6E−5
Child	1	28.5	0.022	1.91	2.48	12.0	0.35E−2	7.6E−5
	3	72.5	0.055	4.85	6.26	30.5	1.10E−2	17E−5
	5	88.1	0.067	5.89	7.65	37.0	2.60E−2	11E−5
Adult	1	22.6	0.017	2.83	1.73	22.6	0.11E−2	2.7E−5
	3	65.6	0.051	8.20	5.01	65.6	0.39E−2	7.3E−5
	5	82.9	0.064	10.36	6.32	82.9	0.88E−2	6.3E−5

$d_p$ particle diameter, $De{p}_T$ total deposition (inspiration and expiration together), total tissue dose ($\frac{De{p}_T\times TV}{A_{\mathit{FRC}}}$: where TV is the tidal volume and $A_{\mathit{FRC}}$ is the lung surface area at FRC, Table 1), rate of deposited particulate matter ($De{p}_T\times TV\times RR$: where RR is the respiratory rate, Table 1), normalized by body surface area, BSA: $\frac{De{p}_T\times TV\times RR}{\mathit{BSA}}$, relative deposition percentages compared to the adult ($De{p}_T\times \frac{\mathit{TV}}{T{V}_A}$), conducting region tissue dose ($\frac{De{p}_C}{A_C}$), and respiratory region tissue dose ($\frac{De{p}_R}{A_R}$).