Chemical testing - what levels were found and what do they mean?

Soil testing revealed that organochlorine pesticides, including dieldrin, were below the detection level of the analytical test, which in this case was 0.001 mg/kg.

In Australia, the level of dieldrin in soil that would trigger the need for further investigation is 6 mg/kg.

The levels were all well below this ‘Health Investigation Level’ or HIL, which is the concentration of a substance in soil, water or air that triggers further investigation and evaluation to determine whether there is any risk to public health.

Page last updated: Wednesday, 19 January 2022