N.H. Code Admin. R. Env-Wq 1703.28
The values shown in Table 1703-6 shall be used to determine saltwater acute aquatic life criteria for ammonia, in mg NH3 /L, for a salinity of 20 g/kg:
Table 1703-6: Saltwater Acute Aquatic Life Criteria for Ammonia in mg NH3/L; Salinity = 20 g/kg
pH
Temperature (°C)
0
5
10
15
20
25
30
35
7.0
291
200
137
96
64
44
31
21
7.2
183
125
87
60
42
29
20
14
7.4
116
79
54
37
27
18
12
8.7
7.6
73
50
35
23
17
11
7.9
5.6
7.8
46
31
23
15
11
7.5
5.2
3.5
8.0
29
20
14
9.8
6.7
4.8
3.3
2.3
8.2
19
13
8.9
6.2
4.4
3.1
2.1
1.6
8.4
12
8.1
5.6
4.0
2.9
2.0
1.5
1.1
8.6
7.5
5.2
3.7
2.7
1.9
1.4
1.0
0.77
8.8
4.8
3.3
2.5
1.7
1.3
0.94
0.73
0.56
9.0
3.1
2.3
1.6
1.2
0.87
0.69
0.54
0.44
Source. (See Revision Notes #1, #2, and #3 at chapter heading for Env-Wq 1700) #12042, eff 12-1-16; ss by #14203, eff 2-26-25