From: Pollution evaluation, sources and risk assessment of heavy metals in hand-dug wells from Ejisu-Juaben Municipality, Ghana
Exposure parameters
Symbols
Units
Value
Concentration of water
C
mg/L
Table 3
Ingestion rate
IR
L/day
2.2
Exposure frequency
EF
Days/year
365
Exposure duration
ED
Years
70
Body weight
BW
Kg
Average time
AT
25,550Â days