N.H. Code Admin. R. Env-Wq 1703.29
The values shown in Table 1703-7 shall be used to determine saltwater acute aquatic life criteria for ammonia, in mg NH3 /L, for a salinity of 30 g/kg:
Table 1703-7: Saltwater Acute Aquatic Life Criteria for Ammonia in mg NH3/L; Salinity = 30 g/kg
pH
Temperature (°C)
0
5
10
15
20
25
30
35
7.0
312
208
148
102
71
48
33
23
7.2
196
135
94
64
44
31
21
15
7.4
125
85
58
40
27
19
13
9.4
7.6
79
54
37
25
21
12
8.5
6.0
7.8
50
33
23
16
11
7.9
5.4
3.7
8.0
31
21
15
10
7.3
5.0
3.5
2.5
8.2
20
14
9.6
6.7
4.6
3.3
2.3
1.7
8.4
12.7
8.7
6.0
4.2
2.9
2.1
1.6
1.1
8.6
8.1
5.6
4.0
2.7
2.0
1.4
1.1
0.81
8.8
5.2
3.5
2.5
1.8
1.3
1.0
0.75
0.58
9.0
3.3
2.3
1.7
1.2
0.94
0.71
0.56
0.46
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