Parameters Value
Ci : Concentration of i region  
Pi : Population of  water supply in the i region  
P Total : Total population of water supply in the i region  
Chronic daily intake, CDI  (mg (Kg-day)-1 )  
THMS concentration of drinking water, CE  
Intake quantity, IR 2.5 (litres day-1)
Average exposure time, AT 70 (year) × 365 (day/year)
Exposure during, ED 70 (Year)
Exposure frequency, EF                                                                  365 (day/year)
Body weight, BW                                                                               Male : 64.8 ± 10 (Kg)
Female : 56.3 ± 9.09 (Kg)
Absorptivity of body 100%
Table 1: References data and formula for exposure assessment (USEPA, 2003) [8].