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Child-Specific Exposure Factors Handbook<br />

Chapter 16 - Activity Factors<br />

Age<br />

(years)<br />

Eat<br />

0 1.9 (96)<br />

1 1.5 (97)<br />

2 1.3 (92)<br />

3 1.2 (95)<br />

4 1.1 (93)<br />

5 1.1 (95)<br />

6 1.1 (94)<br />

7 1.0 (93)<br />

8 0.9 (91)<br />

9 0.9 (90)<br />

10 1.0 (86)<br />

11 0.9 (89)<br />

Source: Hubal et al., 2000.<br />

Table 16-36. Mean Time Children Spent (hours/day) Doing Various<br />

Macroactivities While Indoors at Home<br />

Mean Time (Percent >0 Hours)<br />

Sleep or<br />

Nap<br />

12.6 (99)<br />

12.1 (99)<br />

11.5 (100)<br />

11.3 (99)<br />

10.9 (100)<br />

10.5 (98)<br />

10.4 (98)<br />

9.9 (99)<br />

10.0 (96)<br />

9.7 (96)<br />

9.6 (94)<br />

9.3 (94)<br />

Shower or<br />

Bathe<br />

Play Games<br />

Watch TV or<br />

Listen to Radio<br />

0.4 (44) 4.3 (29) 1.1 (9)<br />

0.5 (56) 3.9 (68) 1.8 (41)<br />

0.5 (53) 2.5 (59) 2.1 (69)<br />

0.4 (53) 2.6 (59) 2.6 (81)<br />

0.5 (52) 2.6 (54) 2.5 (82)<br />

0.5 (54) 2.0 (49) 2.3 (85)<br />

0.4 (49) 1.9 (35) 2.3 (82)<br />

0.4 (56) 2.1 (38) 2.5 (84)<br />

0.4 (51) 2.0 (35) 2.7 (83)<br />

0.5 (43) 1.7 (28) 3.1 (83)<br />

0.4 (43) 1.7 (38) 3.5 (79)<br />

0.4 (45) 1.9 (27) 3.1 (85)<br />

Read, Write,<br />

Homework<br />

0.4 (4)<br />

0.6 (19)<br />

0.6 (27)<br />

0.8 (27)<br />

0.7 (31)<br />

0.8 (31)<br />

0.9 (38)<br />

0.9 (40)<br />

1.0 (45)<br />

1.0 (44)<br />

1.5 (47)<br />

1.1 (47)<br />

Think, Relax,<br />

Passive<br />

3.3 (62)<br />

2.3 (20)<br />

1.4 (18)<br />

1.0 (19)<br />

1.1 (17)<br />

1.2 (19)<br />

1.1 (14)<br />

0.6 (10)<br />

0.7 (7)<br />

0.9 (17)<br />

0.6 (10)<br />

0.6 (10)<br />

Child-Specific Exposure Factors Handbook Page<br />

September 2008 16-59

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