Buy cheap gay porn.

Appendix A - Ammonia Toxicity Standards for Fresh and Marine Waters

Water Quality Criteria for Ammonia in Freshwater (ACUTE)
One-Hour Average Concentration

Total Ammonia (mg/liter NH3)

pH

20C

25C

30C

6.50

29

29

20

6.75

27

26

18.6

7.00

23

23

16.4

7.25

19.2

19.0

13.5

7.50

14.6

14.5

10.3

7.75

10.3

10.2

7.3

8.00

6.8

6.8

4.9

8.25

3.9

4.0

2.9

8.50

2.3

2.4

1.81

8.75

1.42

1.52

1.18

9.00

0.91

1.01

0.82

*To convert these values to mg/liter N, multiply by 0.822.

Ambient Water Quality for Ammonia -1984, EPA 440/5-85-001, January 1985.

 

 

Water Quality Criteria for Amonia in Freshwater (CHRONIC)
Four-Day Average Concentration

Total Ammonia (mg/liter NH3)

pH

20C

25C

30C

6.50

2.5

1.73

1.23

6.75

2.5

1.74

1.23

7.00

2.5

1.74

1.23

7.25

2.5

1.75

1.24

7.50

2.5

1.76

1.25

7.75

2.3

1.65

1.18

8.00

1.55

1.10

0.79

8.25

0.90

0.64

0.47

8.50

0.53

0.39

0.29

8.75

0.32

0.24

0.190

9.00

0.21

0.163

0.133

* To convert these values to mg/liter N, multiply by 0.822.

Ambient Water Quality for Ammonia -1984, EPA 440/5-85-001, January 1985 as amended by memorandum "Revised Tables for Determining Average Freshwater Ammonia Concentrations," July 30, 1992.



Water Quality Criteria for Ammonia in Saltwater (ACUTE)
One-Hour Average Concentration

Total Ammonia (mg/liter NH3)

Salinity = 30 g/kg

pH

25C

30C

35C

7.8

7.9

5.4

3.7

8.0

5.0

3.5

2.5

8.2

3.3

2.3

1.7

8.4

2.1

1.6

1.1

8.6

1.4

1.1

0.81

*To convert these values to mg/liter N, multiply by 0.822.

Ambient Water Quality Criteria for Ammonia (Saltwater)-1989, EPA 440/5-88-044, April 1989.

 

 

Water Quality Criteria for Amonia in Saltware (CHRONIC)
Four-Day Average Concentration

Total Ammonia (mg/liter NH3)

Salinity = 30 g/kg

pH

25C

30C

35C

7.8

1.2

0.81

0.56

8.0

0.75

0.53

0.37

8.2

0.50

0.34

0.25

8.4

0.31

0.23

0.17

8.6

0.22

0.16

0.12

* To convert these values to mg/liter N, multiply by 0.822.

Ambient Water Quality Criteria for Ammonia (Saltwater)-1989, EPA 440/5-88-044, April 1989.