Oxygen Dissolved in Water Table, Formula and Calculator

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Oxygen Dissolved in Water Table, Formula and Calculator

Physics - Engineering
Thermodynamics
Fluids Flow Design and Engineering

Saturation Concentrations of Dissolved Oxygen in Water^a

temperature (° C)	chloride concentration in water (mg/L)			differnece per 100 mg chloride	vapor pressure (mm Hg)
	0^b	5,000	10,000	differnece per 100 mg chloride
	dissolved oxygen (mg/L)
0	14.60	13.79	12.97	0.017	4.58
1	14.19	13.41	12.61	0.016	4.93
2	13.81	13.05	12.28	0.015	5.29
3	13.44	12.72	11.98	0.015	5.69
4	13.09	12.41	11.69	0.014	6.10
5	12.75	12.09	11.39	0.014	6.54
6	12.43	11.79	11.12	0.014	7.02
7	12.12	11.51	10.85	0.013	7.52
8	11.83	11.24	10.61	0.013	8.05
9	11.55	10.97	10.36	0.012	8.61
10	11.27	10.73	10.13	0.012	9.21
11	11.01	10.49	9.92	0.011	9.85
12	10.76	10.28	9.72	0.011	10.52
13	10.52	10.05	9.52	0.011	11.24
14	10.29	9.85	9.32	0.010	11.99
15	10.07	9.65	9.14	0.010	12.79
16	9.85	9.46	8.96	0.010	13.64
17	9.65	9.26	8.78	0.010	14.54
18	9.45	9.07	8.62	0.009	15.49
19	9.26	8.89	8.45	0.009	16.49
20	9.07	8.73	8.30	0.009	17.54
21	8.90	8.57	8.14	0.009	18.66
22	8.72	8.42	7.99	0.008	19.84
23	8.56	8.27	7.85	0.008	21.08
24	8.40	8.12	7.71	0.008	22.34
25	8.24	7.96	7.56	0.008	23.77
26	8.09	7.81	7.42	0.008	25.22
27	7.95	7.67	7.28	0.008	26.75
28	7.81	7.53	7.14	0.008	28.36
29	7.67	7.39	7.00	0.008	30.05
30	7.54	7.25	6.86	0.008	31.83

^aFor saturation at barometric pressures other than 760 mm Hg (29.92 in Hg), C'_s is related to the corresponding tabulated value, C_s , by the following equation.

Eq. 1
C'_s = C_s [ ( P - p) / ( 760 - p )]

where

C'_s = solubility at barometric pressure P and given temperature, mg/L
C_s = saturation solubility at given temperature from appendix, mg/L
P = barometric pressure, mm Hg
p = pressure of saturated water vapor at temperature of the water selected from appendix, mm Hg

^bZero-chloride values from Volunteer Stream Monitoring: A Methods Manual (EPA 841-B-97-003), Environmental Protection Agency, Office of Water, Sec. 5.2 “Dissolved Oxygen and Biochemical Oxygen Demand;” 1997.