Table 1.
Parameters used in the estimation of the emission rate of naphthalene (Remission) and its indoor atmospheric concentration (Cin)
| Parameter | Unit | Value | Distribution | |
|---|---|---|---|---|
| Emission rate (Remission) | ||||
| δ | Air boundary length of a naphthalene ball | m | 0.01–0.1 | Uniform |
| r | Radius of naphthalene ball | m | 0.005–0.04 | Uniform |
| Da | Diffusion coefficient of naphthalene | m2 s–1 | Equation (4) | |
| T | Temperature | K | 291–298 | Uniform |
| P° | Vapor pressure of naphthalene | Pa | Equation (5) | |
| MW | Molecular weight of naphthalene | mg mmol–1 | 128.17 | Constant |
| Indoor atmospheric concentration (Cin) | ||||
| ntoilet | Number of naphthalene balls per unit volume in public toilets | balls m–3 | 0.25 ± 2.37 | Log-normal |
| ke | Overall elimination rate | h–1 | 7–15 | Uniform |