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Mean fractions of time spent indoors, including on travel, by adult men and women (aged 18 to 64) of California and of the entire US (based on US EPA 2011).
| California study (1987-1988) | National study (1985) | |||
|---|---|---|---|---|
| Men | Women | Men | Women | |
| At home | 0.57 | 0.67 | 0.62 | 0.71 |
| Away from home | 0.34 | 0.26 | 0.31 | 0.23 |
| Travel | 0.09 | 0.07 | 0.07 | 0.06 |
