Receptor Characteristics Table

Infant Toddler Child Teen Adult
Age 0 - 6 mo. 7 mo. - 4 y 5 - 11 y 12 - 19 y >= 20 y
Body weight (kg) 8.2 16.5 32.9 59.7 70.7
Soil ingestion rate (kg/d) 0.00002 0.00008 0.00002 0.00002 0.00002
Inhalation rate (m3/d) 2.1 9.3 14.5 15.8 15.8
Water ingestion rate (L/d) 0.3 0.6 0.8 1 1.5
Time spent outdoors (h/d) 1.5 1.5 1.5 1.5 1.5
Skin surface area (cm2)
- hands 320 430 590 800 890
- arms 550 890 1480 2230 2500
- legs 910 1690 3070 4970 5720
- total 3620 6130 10140 15470 17640
Soil loading to exposed skin (g/cm2/event)
- hands 0.00010 0.00010 0.00010 0.00010 0.00010
- surfaces other than hands 0.00001 0.00001 0.00001 0.00001 0.00001
Food ingestion (g/d)
- root vegetables 83 105 161 227 188
- other vegetables 72 67 98 120 137
- fish and meat 0 56 90 104 111
Table adapted from Health Canada's PQRA model (Health Canada 2004) 
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