The short-term benchmark concentration of 1.0 µg·L^-1  is for waters of 50 mg CaCO₃·L^-1 hardness.

The short-term benchmark for cadmium is related to water hardness (as CaCO₃):

When the water hardness is 0 to < 5.3 mg/L, the short-term benchmark is 0.11 μg/L

At hardness ≥ 5.3 to ≤ 360 mg/L, the short-term benchmark is calculated using this equation (see calculator below)

Short-term benchmark (μg/L) = 10^{{1.016(log[hardness]) – 1.71 }}

At hardness > 360 mg/L, the short-term benchmark is 7.7 μg/L

Enter water hardness here:
mg/L CaCO₃ The value must be greater than 0

Calculated cadmium short-term benchmark:
μg/L

The CWQG for cadmium (i.e. long-term guideline) of 0.09 µg·L^-1 is for waters of 50 mg CaCO₃·L^-1 hardness.

The CWQG for cadmium is related to water hardness (as CaCO₃):

When the water hardness is > 0 to < 17 mg/L, the CWQG is 0.04 μg/L

At hardness ≥ 17 to ≤ 280 mg/L, the CWQG is calculated using this equation (see calculator below)

CWQG (μg/L) = 10^{{0.83(log[hardness]) – 2.46 }}

At hardness > 280 mg/L, the CWQG is 0.37 μg/L

Enter water hardness here:
mg/L CaCO₃ The value must be greater than 0

Calculated cadmium guideline:
μg/L

This value was not assessed as part of the present update; value is from CCME (1996).

Guideline values slightly modified from CCREM 1987 + Appendixes due to re-evaluation of the significant figures.

Guideline is crop specific (see fact sheet)

Data are sufficient and adequate to calculate a Soil Quality Guideline for Human Health (SQG_HH) and a Soil Quality Guideline for Environmental Health (SQG_E). Therefore the soil quality guideline is the lower of the two and represents a fully integrated de novo guideline for this land use, derived in accordance with the soil protocol (CCME 1996;2006). The corresponding interim soil quality criterion (CCME 1991) is superseded by the soil quality guideline.

For guidelines derived prior to 2004, differentiation between soil texture (coarse/fine) is not applicable.

The soil-plant-human pathway was not considered in the guideline derivation. If produce gardens are present or planned, a site-specific objective must be derived to take into account the bioaccumulation potential (e.g., adopt the agricultural guideline as objective). The off-site migration check should be recalculated accordingly.

For guidelines derived prior to 2004, differentiation between soil texture (coarse/fine) is not applicable.

Data are sufficient and adequate to calculate a Soil Quality Guideline for Human Health (SQG_HH) and a Soil Quality Guideline for Environmental Health (SQG_E). Therefore the soil quality guideline is the lower of the two and represents a fully integrated de novo guideline for this land use, derived in accordance with the soil protocol (CCME 1996;2006). The corresponding interim soil quality criterion (CCME 1991) is superseded by the soil quality guideline.

For guidelines derived prior to 2004, differentiation between soil texture (coarse/fine) is not applicable.

Data are sufficient and adequate to calculate a Soil Quality Guideline for Human Health (SQG_HH) and a Soil Quality Guideline for Environmental Health (SQG_E). Therefore the soil quality guideline is the lower of the two and represents a fully integrated de novo guideline for this land use, derived in accordance with the soil protocol (CCME 1996;2006). The corresponding interim soil quality criterion (CCME 1991) is superseded by the soil quality guideline.

For guidelines derived prior to 2004, differentiation between soil texture (coarse/fine) is not applicable.