Dissolved oxygen
Chemical Groups: Inorganic
Also Known As: DO
CASRN:
Water Quality Guidelines for the Protection of Aquatic Life
Freshwater
Short Term Concentration (µg/L) No data
Long Term Concentration (µg/L) Variable
Lowest acceptable dissolved oxygen concentration:
for warm water biota: early life stages = 6000 µg/L
for warm water biota: other life stages = 5500 µg/L
for cold water biota: early life stages = 9500 µg/L
for cold water biota: other life stages = 6500 µg/L
Note:
Substance has been re-evaluated since CCREM 1987 + Appendixes. Either a new guideline has been derived or insufficient data existed to derive a new guideline.
Date 1999
Marine
Short Term Concentration (µg/L) No data
Long Term Concentration (µg/L) >8000 & Narrative
The recommended minimum concentration of DO in marine and estuarine waters is 8.0 mg/L.
Depression of DO below the recommended value should only occur as a result of natural processes. When the natural DO level is less than the recommended interim guideline, the natural concentration should become the interim guideline at that site. When ambient DO concentrations are >8.0 mg/L, human activities should not cause DO levels to decrease by more than 10% of the natural concentration expected in the receiving environment at that time.
Note:
Interim guideline.
Substance has been re-evaluated since CCREM 1987 + Appendixes. Either a new guideline has been derived or insufficient data existed to derive a new guideline.
Date 1996
Water Quality Guidelines 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 Guidelines 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 Guidelines 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 Guidelines for the Protection of Widlife Consumer of Aquatic Biota
Concentration (µg/L) No data
Date No data
Groundwater Quality Guidelines for the Protection of Environmental and Human Health
(Coarse Soil) Concentration (mg/L) - Agricultural/Residential No data
(Coarse Soil) Concentration (mg/L) - Commercial/Industrial No data
(Fine Soil) Concentration (mg/L) - Agricultural/Residential No data
(Fine Soil) Concentration (mg/L) - Commercial/Industrial No data
Date No data