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Table 1 Standard physical characteristics

From: Risk-based indicators of Canadians’ exposures to environmental carcinogens

Characteristic Units Adult Teen Child Small Child Infant
Age years 20 to 70 12 to 19 5 to 11 0.5 to 4 0 to 0.5
Bodyweight kilograms 70 57 27 13 6
Breathing cubic metres per day 23 21 12 5 2
Drinking water litres per day 1.5 1.3 0.9 0.8 0.75
Dust ingestion grams per day 0.02 0.02 0.035 0.05 0.035
Time outdoor % of 24 hours 6.25 6.25 8.2 8.2 8.2
Time indoors % of 24 hours 93.75 93.75 91.8 91.8 91.8