Canadian Council of Ministers
of the Environment

Le Conseil canadien des ministres
de l'environnement

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Nitrate


CASRN: 14797-55-8
Parameter 1: INORGANIC
Parameter 2: Inorganic nitrogen compounds

Water Quality for the Protection of Aquatic Life

Further documentation on these guidelines can be found in the Canadian Environment Quality Guidelines.
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Freshwater

Short Term Concentration (µg/L)

550,000 µg/L or 550 mg/L

All nitrate concentrations presented here will be for the ion only (i.e., as mg NO3·L‑1).  Conversion factors for some of the commonly reported units in the literature are provided in the factsheet.


For protection from direct toxic effects; the guidelines do not consider indirect effects due to eutrophication.


Derived from toxicity tests utilizing NaNO3


Derived with severe-effects data (such as lethality) and are not intended to protect all components of aquatic ecosystem structure and function but rather to protect most species against lethality during severe but transient events (e.g. inappropriate application or disposal of the substance of concern).

Long Term Concentration (µg/L)

13,000 µg/L or 13 mg/L

All nitrate concentrations presented here will be for the ion only (i.e., as mg NO3·L‑1).  Conversion factors for some of the commonly reported units in the literature are provided in the factsheet.


For protection from direct toxic effects; the guidelines do not consider indirect effects due to eutrophication.


Derived from toxicity tests utilizing NaNO3.


Derived with mostly no- and some low-effect data and are intended to protect against negative effects to aquatic ecosystem structure and function during indefinite exposures (e.g. abide by the guiding principle as per CCME 2007).


 

Date

2012

Marine

Short Term Concentration (µg/L)

1,500,000 µg/L or 1500 mg/L

All nitrate concentrations presented here will be for the ion only (i.e., as mg NO3·L‑1).  Conversion factors for some of the commonly reported units in the literature are provided in the factsheet.


For protection from direct toxic effects; the guidelines do not consider indirect effects due to eutrophication.


Derived from toxicity tests utilizing NaNO3 and KNO3.


Derived with severe-effects data (such as lethality) and are not intended to protect all components of aquatic ecosystem structure and function but rather to protect most species against lethality during severe but transient events (e.g. inappropriate application or disposal of the substance of concern).

Long Term Concentration (µg/L)

200,000 µg/L or 200 mg/L

All nitrate concentrations presented here will be for the ion only (i.e., as mg NO3·L‑1).  Conversion factors for some of the commonly reported units in the literature are provided in the factsheet.


For protection from direct toxic effects; the guidelines do not consider indirect effects due to eutrophication.


Derived from toxicity tests utilizing NaNO3 and KNO3.


Derived with mostly no- and some low-effect data and are intended to protect against negative effects to aquatic ecosystem structure and function during indefinite exposures (e.g. abide by the guiding principle as per CCME 2007).

Date

2012

Water Quality for the Protection of Agriculture

Irrigation

Concentration (µg/L)

No data

Date

No data

Livestock

Concentration (µg/L)

No data

Date

No data

Sediment Quality for the Protection of Aquatic Life

Freshwater

Concentration (µg/kg dry weight) - ISQG

No data

Concentration (µg/kg dry weight) - PEL

No data

Date

No data

Marine

Concentration (µg/kg dry weight) - ISQG

No data

Concentration (µg/kg dry weight) - PEL

No data

Date

No data

Soil Quality for the Protection of Environmental and Human Health

Concentration (mg/kg dry weight) - Agricultural

No data

Concentration (mg/kg dry weight) - Residential / parkland

No data

Concentration (mg/kg dry weight) - Commercial

No data

Concentration (mg/kg dry weight) - Industrial

No data

Date

No data

Tissue Residue Quality for the Protection of Widlife Consumer of Aquatic Biota

Concentration (µg/kg diet wet weight)

No data

Date

No data