N.H. Code Admin. R. Env-Wq 1703.31

Current through Register No. 25, June 20, 2024

Section Env-Wq 1703.31 - Saltwater Chronic Aquatic Life Criteria for Ammonia at a Salinity of 20 g/kg

The values shown in Table 1703-9 shall be used to determine saltwater chronic aquatic life criteria for ammonia, in mg NH3 /l, for a salinity of 20 g/kg:

Table 1703-9: Saltwater Chronic 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	44	30	21	14	9.7	6.6	4.7	3.1
7.2	27	19	13	9.0	6.2	4.4	3.0	2.1
7.4	18	12	8.1	5.6	4.1	2.7	1.9	1.3
7.6	11	7.5	5.3	3.4	2.5	1.7	1.2	0.84
7.8	6.9	4.7	3.4	2.3	1.6	1.1	0.78	0.53
8.0	4.4	3.0	2.1	1.5	1.0	0.72	0.50	0.34
8.2	2.8	1.9	1.3	.94	.66	.47	.31	.24
8.4	1.8	1.2	.84	.59	.44	.30	.22	.16
8.6	1.1	.78	.56	.41	.28	.20	.15	.12
8.8	.72	.50	.37	.26	.19	.14	.11	.08
9.0	.47	.34	.24	.18	.13	.10	.08	.07

N.H. Code Admin. R. Env-Wq 1703.31

(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.