Arsenic concentration (Cw)

Arsenic concentration in the raw groundwater sample in μg/l

Exposure rate (IRw)

1.5 l/day, average daily intake of water

Exposure frequency (EF)

365 days/year, the days of arsenic intake per year in evaluation period

Exposure duration (ED)

35 years, most of the wells are drilled in the period between 1975 and 1985, thus 35 years was assumed as mean exposure duration

Average exposure time (AT)

26,900 days (73.2 years),average lifetime in Iran

Body weight (BW)

Typical adult weight of 70 kg is considered