Question

Discuss the likely health risks associated with a concentration of 30 μg/L of 2,4‑dichlorophenoxyacetic acid as compared to typical values found in Australian drinking waters

Answer 1

The given concentration of 2,4-dichlorophenoxyacetic acid in water = 30 μg/L, i.e. 30*10^-6 g/L = 3*10^-5 g/L (i.e. 30 ppm), where ppm = parts of 2,4-dichlorophenoxyacetic acid per million parts of water.

The typical healthy value for the concentration of 2,4-dichlorophenoxyacetic acid found in Australian drinking waters = 0.03 mg/L, i.e. 3*10^-5 g/L (i.e. 30 ppm)

Hence, there is no health risk associated with the given concentration of 2,4-dichlorophenoxyacetic acid in water.