N.H. Code Admin. R. Env-Wq 1703.28

Current through Register No. 25, June 20, 2024

Section Env-Wq 1703.28 - Saltwater Acute Aquatic Life Criteria for Ammonia at a Salinity of 20 g/kg

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)
pH	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

(See Revision Note #1 at chapter heading for Env-Wq 1700) #7151, eff 12-10-99; ss by #9034, INTERIM, eff 12-10-07; ss by #9162, eff 5-21-08 (See Revision Note #2 at chapter heading for Env-Wq 1700)

Amended by Volume XXXVI Number 49, Filed December 8, 2016, Proposed by #12042, Effective 12/1/2016, Expires 12/1/2026.