Citation:

PANGAEA.756616, Supplement to: Novoselov, AA et al. (1987): Comparative evaluation of the iodometric and fluorimetric methods of determining hydrogen sulfide in the layer of its coexistence with oxygen in the Black Sea. Oceanology, 27(3), 304-307

Name: Concentration of hydrogen sulfide in waters of the Black Sea in the layer of its coexistence with oxygen
Published: 1987
License: https://creativecommons.org/licenses/by/3.0/

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Abstract:

About 100 parallel determinations of hydrogen sulfide by the volumetric and photometric methods were made in the layer of coexistence of oxygen with hydrogen sulfide (C layer). Thiosulfates were determined simultaneously. Regardless of locations of the stations, determinations by two methods coincided for the entire range of depths of occurrence of the C layer upper boundary. Within the C layer hydrogen sulfide readings obtained by these two independent methods agreed; thiosulfates were not found by direct measurements. Difference in the readings appears at the lower boundary of the C layer and below it, accompanied by appearance of thiosulfates. It is therefore concluded that it is correct to determine the upper boundary of the C layer by the iodometric method and to use concentration of hydrogen sulfide obtained by this method in the C layer to calculate rate of chemical oxidation of hydrogen sulfide in quasistationary processes.

Project(s):

Archive of Ocean Data (ARCOD)

Coverage:

Median Latitude: 42.317778 * Median Longitude: 37.543333 * South-bound Latitude: 41.950000 * West-bound Longitude: 34.470000 * North-bound Latitude: 42.820000 * East-bound Longitude: 40.450000

Minimum DEPTH, water: 120 m * Maximum DEPTH, water: 280 m

Event(s):

ML44-N77 * Latitude: 42.820000 * Longitude: 34.470000 * Location: Black Sea * Method/Device: Water sample (WS)

ML44-N80 * Latitude: 42.620000 * Longitude: 35.480000 * Location: Black Sea * Method/Device: Water sample (WS)

ML44-N81 * Latitude: 42.280000 * Longitude: 36.000000 * Location: Black Sea * Method/Device: Water sample (WS)

Parameter(s):

#	Name	Short Name	Unit	Principal Investigator	Method/Device	Comment
1	Event label	Event
2	Latitude of event	Latitude
3	Longitude of event	Longitude
4	DEPTH, water	Depth water	m			Geocode
5	Oxygen	O2	µmol/l	Novoselov, A A
6	Hydrogen sulfide	H2S	µmol/l	Novoselov, A A	Iodometric chemical method	IM
7	Hydrogen sulfide	H2S	µmol/l	Novoselov, A A	Fluorometry	FM
8	Thiosulfate	S2O3	µmol/l	Novoselov, A A

License:

Creative Commons Attribution 3.0 Unported (CC-BY-3.0)

Size:

237 data points

Data

Download dataset as tab-delimited text — use the following character encoding:

1 Event	2 Latitude	3 Longitude	4 Depth water [m]	5 O2 [µmol/l]	6 H2S [µmol/l] (IM, Iodometric chemical method)	7 H2S [µmol/l] (FM, Fluorometry)	8 S2O3 [µmol/l]
ML44-N77	42.82	34.47	120	11.2	0.0	0.0	0.00
ML44-N77	42.82	34.47	130	9.8	4.0	2.7	0.00
ML44-N77	42.82	34.47	140	8.0	5.8	5.8	0.00
ML44-N77	42.82	34.47	150	4.5	10.7	11.2	0.00
ML44-N77	42.82	34.47	160	3.6	15.2	13.8	2.14
ML44-N77	42.82	34.47	170	0.0	19.2	16.1
ML44-N77	42.82	34.47	180	0.0	22.8	17.4	2.14
ML44-N80	42.62	35.48	130	12.1	0.0	0.0	0.00
ML44-N80	42.62	35.48	140	2.7	23.2	22.3	0.00
ML44-N80	42.62	35.48	150	0.0	28.6	29.0	0.00
ML44-N80	42.62	35.48	170	0.0	35.3	35.7	0.00
ML44-N80	42.62	35.48	180	0.0	41.1	40.2	0.00
ML44-N81	42.28	36.00	150	9.4	0.0	0.0
ML44-N81	42.28	36.00	160	8.5	2.2	0.0
ML44-N81	42.28	36.00	170	12.1	1.3	0.0
ML44-N81	42.28	36.00	190	9.8	7.1	5.8
ML44-N81	42.28	36.00	210	12.1	19.6	12.9
ML44-N81	42.28	36.00	220	0.0	21.9	18.3
ML44-N81	42.28	36.00	240	0.0	31.7	20.1
ML44-N81	42.28	36.00	250	0.0	39.3	22.3
ML44-N85	42.00	37.49	150	21.4	0.0	0.0
ML44-N85	42.00	37.49	160	6.3	3.6	3.1
ML44-N85	42.00	37.49	170	3.6	9.4	8.9
ML44-N85	42.00	37.49	180	2.7	12.5	12.9
ML44-N85	42.00	37.49	190	7.6	16.5	13.4
ML44-N85	42.00	37.49	210	8.5	23.2	20.1
ML44-N85	42.00	37.49	220	0.0	27.2	22.8
ML44-N85	42.00	37.49	230	0.0	30.4	24.6
ML44-N85	42.00	37.49	240	0.0	37.1	28.1
ML44-N85	42.00	37.49	250	0.0	46.9	31.3
ML44-N86	42.64	37.50	130	6.3	0.0	0.0	0.00
ML44-N86	42.64	37.50	140	3.6	4.0	0.9	0.00
ML44-N86	42.64	37.50	150	0.0	7.6	6.3	0.00
ML44-N86	42.64	37.50	170	3.1	11.2	11.6	0.00
ML44-N86	42.64	37.50	180	0.9	16.5	13.4	4.45
ML44-N86	42.64	37.50	190	0.0	22.3	20.1	4.45
ML44-N86	42.64	37.50	200	0.0	27.2	20.5	6.76
ML44-N86	42.64	37.50	210	0.0	31.7	27.7	3.56
ML44-N87	42.60	38.52	130	8.0	2.7	0.0	0.00
ML44-N87	42.60	38.52	150	4.9	14.3	12.1	0.00
ML44-N87	42.60	38.52	170	0.0	22.3	20.1	0.00
ML44-N87	42.60	38.52	180	0.0	25.9	22.3	1.34
ML44-N87	42.60	38.52	190	0.0	29.5	22.8	1.78
ML44-N87	42.60	38.52	200	0.0	34.8	26.8	1.78
ML44-N87	42.60	38.52	210	0.0	40.6	29.0	2.67
ML44-N88	41.95	38.49	140	6.3	0.0	0.0
ML44-N88	41.95	38.49	150	4.9	0.0	0.0
ML44-N88	41.95	38.49	160	8.0	3.6	4.5
ML44-N88	41.95	38.49	170	5.4	8.9	8.9
ML44-N88	41.95	38.49	180	0.0	12.9	12.1
ML44-N88	41.95	38.49	190	0.0	20.5	16.5
ML44-N88	41.95	38.49	200	0.0	22.8	19.2
ML44-N88	41.95	38.49	210	0.0	30.8	21.9
ML44-N91	41.98	39.49	150	4.9	0.0	0.0
ML44-N91	41.98	39.49	160	4.0	4.9	4.5
ML44-N91	41.98	39.49	170	0.9	8.5	11.2
ML44-N91	41.98	39.49	180	0.9	10.7	11.2
ML44-N91	41.98	39.49	190	0.0	18.8	13.8
ML44-N91	41.98	39.49	200	0.0	24.1	17.9
ML44-N91	41.98	39.49	210	0.0	28.1	18.8
ML44-N91	41.98	39.49	230	0.0	34.8	29.9
ML44-N92	41.97	40.45	210	9.8	0.0	0.0	0.00
ML44-N92	41.97	40.45	220	9.4	0.0	0.0	0.00
ML44-N92	41.97	40.45	230	6.3	4.9	5.4	0.00
ML44-N92	41.97	40.45	250	1.8	13.8	10.3	0.00
ML44-N92	41.97	40.45	260	0.0	0.0	14.3	3.56
ML44-N92	41.97	40.45	270	0.0	22.8	19.2	3.56
ML44-N92	41.97	40.45	280	0.0	28.1	24.6	3.56