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Environmental Quality Guideline Values

Compound

Reference

Guideline value
(m g
/L)

Use

Level of confidence c

Copper

2

4.5a

Acute

95%

1

1.4a

Chronic

3

1.2a

Chronic

2

2.0b

Chronic

Chromium (total)

2

2

20.0

2.0

Chronic

Chronic

To protect fish

To protect aquatic life

 

 

 

95%

Chromium (III)

3

2

570

74

Acute

Chronic

Chromium (VI)

3

1

16

1.0

Acute

Chronic

Arsenic (total)

3

340

Acute

 

 

 

95%

95%

3

150

Chronic

2

50

Chronic

Arsenic (III)

1

24

Chronic

Arsenic(V)

1

13

Chronic

Benzene

1

950

Chronic

95%

2

300

Chronic

Ethylbenzene

1

80

Chronic

Low reliability

2

700

Chronic

Tentative

Toluene

1

170

Chronic

Tentative

2

300

Chronic

 

o-xylene

1

350

Chronic

95%

m-xylene

1

75

Chronic

Low reliability

p-xylene

1

200

Chronic

95%

a Calculated at 30 mg L-1 CaCO3

b Calculated for 0-60 mg L-1 CaCO3

c ANZECC (2000) provides a range of confidence levels for use in different environments

References

  1. ANZECC (2000). Australian and New Zealand water quality guidelines for fresh and marine waters. Australian and New Zealand Environment and Conservation Council. Agriculture and Resource Management Council of Australia and New Zealand, Canberra, Australia.
  2. CCREM (1995). Canadian water quality guidelines. Prepared by the task force on water quality guidelines of the Council of Resource and Environment Ministers. Environment Canada.
  3. US EPA (1999). National recommended water quality criteria - Correction. EPA 822-Z-99-001. United States Environmental Protection Agency, Office of Water 4304.

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