Citation:

PANGAEA.936483

Name: Aerosol chemical composition (major ions and iodine species) in samples collected during the M138 cruise in the eastern Pacific Ocean, June 2017
Creator: Alex R Baker
Published: 2021-09-28
License: https://creativecommons.org/licenses/by/4.0/
Keywords: high-volume aerosol collection; size-segregated aerosol particles

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Published: 2021-09-28 • DOI registered: 2021-11-04

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Abstract:

Size segregated aerosol samples were collected during the M138 cruise (FS Meteor) during 6 June - 1 July 2017 in the eastern Pacific Ocean (~86 W - 76 W, 16 S – 5 N). The samples were collected by Hermann Bange of GEOMAR, Kiel, Germany. The aerosol sampler was situated on the roof of the ship's wheelhouse and its operation was controlled by an automatic wind sector controller to prevent contamination from the ship's stack. Samples were collected using a Sierra-type cascade impactor to separate the aerosol particles at an aerodynamic diameter cutoff of 1 µm. Collection time for these samples varied between 14.3 and 65.2 hours. Samples were extracted with ultrapure water and the major ions Na+, NH4+, Mg2+, K+, Ca2+, Cl-, NO3-, SO42-, oxalate, Br- and methanesulfonate were determined by ion chromatography (IC). Total soluble iodine (TSI) was determined by inductively coupled plasma - mass spectrometry (ICP-MS) and iodide (I-) and iodate (IO3-) were determined by IC-ICP-MS. Analysis work was performed by Andrew Smith of University of East Anglia, Norwich, UK. The dataset contains the atmospheric concentrations of all measured soluble major ions (in nmol/m³)) and iodine species (in in pmol/m³). The data are reported in “Soluble iodine speciation in marine aerosols across the Indian and Pacific Ocean basins”, E. Droste et al., Frontiers in Marine Science, in preparation, (2021).

Keyword(s):

high-volume aerosol collection; size-segregated aerosol particles

Related to:

Droste, Elise Sayana; Baker, Alex R; Yodle, Chan; Smith, Andrew; Ganzeveld, L (2021): Soluble Iodine Speciation in Marine Aerosols Across the Indian and Pacific Ocean Basins. Frontiers in Marine Science, 8, 1844, https://doi.org/10.3389/fmars.2021.788105

Coverage:

Median Latitude: -11.064292 * Median Longitude: -78.585958 * South-bound Latitude: -15.899000 * West-bound Longitude: -85.833000 * North-bound Latitude: 5.290000 * East-bound Longitude: -76.075000

Date/Time Start: 2017-06-06T15:13:00 * Date/Time End: 2017-07-01T18:15:00

Event(s):

M138_MI04 * Latitude Start: -10.667000 * Longitude Start: -78.091000 * Latitude End: -12.038000 * Longitude End: -78.500000 * Date/Time Start: 2017-06-06T15:13:00 * Date/Time End: 2017-06-08T16:50:00 * Location: East Pacific Ocean * Campaign: (SFB754) * Basis: * Method/Device: * Comment: Volume of air sampled: 2403.6 m**3

M138_MI05 * Latitude Start: -12.033000 * Longitude Start: -78.499000 * Latitude End: -12.435000 * Longitude End: -77.811000 * Date/Time Start: 2017-06-08T17:25:00 * Date/Time End: 2017-06-10T19:00:00 * Location: East Pacific Ocean * Campaign: (SFB754) * Basis: * Method/Device: * Comment: Volume of air sampled: 2934 m**3

M138_MI06 * Latitude Start: -12.445000 * Longitude Start: -77.810000 * Latitude End: -12.210000 * Longitude End: -77.440000 * Date/Time Start: 2017-06-10T19:35:00 * Date/Time End: 2017-06-12T18:00:00 * Location: East Pacific Ocean * Campaign: (SFB754) * Basis: * Method/Device: * Comment: Volume of air sampled: 2145.6 m**3

Comment:

Sampler Flow: 1 m³/min

Substrate Type: Whatman 41 cellulose

Substrate Pretreat: Washed in ultrapure water and then ashed at 450C for 4 hours

Size Seg Method: Sierra type cascade impactor. For most samples stages 3 and 4 were used and combined during analysis to give a fraction with aerodynamic diameter > 1 µm (Size_fraction coarse). Backup filter collected the < 1µm fraction (Size_fraction w).

Method Publication: Yodle and Baker, Atmospheric Environment X, 1, 100009, (2019)

DL Value: Where the detection limit applies, concentrations are quoted as less than the limit of detection; Example atmospheric detection limits (given in Comment below) have been calculated from analytical detection limits for an air volume of 2100 m³.

Parameter(s):

#	Name	Short Name	Unit	Principal Investigator	Method/Device	Comment
1	Event label	Event		Baker, Alex R
2	Date/Time of event	Date/Time		Baker, Alex R
3	Date/Time of event 2	Date/Time 2		Baker, Alex R
4	Latitude of event	Latitude		Baker, Alex R
5	Latitude of event 2	Latitude 2		Baker, Alex R
6	Longitude of event	Longitude		Baker, Alex R
7	Longitude of event 2	Longitude 2		Baker, Alex R
8	Sample code/label	Sample label		Baker, Alex R
9	Size fraction	Size fraction		Baker, Alex R
10	Air volume	Air vol	m³	Baker, Alex R
11	Sodium, soluble	Na sol	nmol/m³	Baker, Alex R	Ion chromatography	Detection limit coarse: 0.68 nmol/m3; Detection limit w: 2.5 nmol/m3
12	Sodium, soluble, standard deviation	Na sol std dev	±	Baker, Alex R
13	Ammonium, soluble	[NH4]+ sol	nmol/m³	Baker, Alex R	Ion chromatography	Detection limit coarse: 0.08 nmol/m3; Detection limit w: 0.08 nmol/m3
14	Ammonium, soluble, standard deviation	[NH4]+ sol std dev	±	Baker, Alex R
15	Magnesium, soluble	Mg sol	nmol/m³	Baker, Alex R	Ion chromatography	Detection limit coarse: 0.2 nmol/m3; Detection limit w: 0.2 nmol/m3
16	Magnesium, soluble, standard deviation	Mg sol std dev	±	Baker, Alex R
17	Potassium, soluble	K sol	nmol/m³	Baker, Alex R	Ion chromatography	Detection limit coarse: 0.1 nmol/m3; Detection limit w: 0.1 nmol/m3
18	Potassium, soluble, standard deviation	K sol std dev	±	Baker, Alex R
19	Calcium, soluble	Ca sol	nmol/m³	Baker, Alex R	Ion chromatography	Detection limit coarse: 0.03 nmol/m3; Detection limit w: 0.03 nmol/m3
20	Calcium, soluble, standard deviation	Ca sol std dev	±	Baker, Alex R
21	Chloride, soluble	Cl- sol	nmol/m³	Baker, Alex R	Ion chromatography	Detection limit coarse: 0.11 nmol/m3; Detection limit w: 0.76 nmol/m3
22	Chloride, soluble, standard deviation	Cl- sol std dev	±	Baker, Alex R
23	Nitrate, soluble	[NO3]- sol	nmol/m³	Baker, Alex R	Ion chromatography	Detection limit coarse: 0.11 nmol/m3; Detection limit w: 0.11 nmol/m3
24	Nitrate, soluble, standard deviation	[NO3]- sol std dev	±	Baker, Alex R
25	Sulfate, soluble	[SO4]2- sol	nmol/m³	Baker, Alex R	Ion chromatography	Detection limit coarse: 0.04 nmol/m3; Detection limit w: 0.04 nmol/m3
26	Sulfate, soluble, standard deviation	[SO4]2- sol std dev	±	Baker, Alex R
27	Oxalate, soluble	[C2O4]2- sol	nmol/m³	Baker, Alex R	Ion chromatography	Detection limit coarse: 0.01 nmol/m3; Detection limit w: 0.01 nmol/m3
28	Oxalate, soluble, standard deviation	[C2O4]2- sol std dev	±	Baker, Alex R
29	Bromide, soluble	Br- sol	nmol/m³	Baker, Alex R	Ion chromatography	Detection limit coarse: 0.03 nmol/m3; Detection limit w: 0.03 nmol/m3
30	Methane sulfonic acid	MSA	nmol/m³	Baker, Alex R	Ion chromatography	Detection limit coarse: 0.02 nmol/m3; Detection limit w: 0.02 nmol/m3
31	Methane sulfonic acid, standard deviation	MSA std dev	±	Baker, Alex R
32	Iodide, soluble	I- sol	pmol/m³	Baker, Alex R	Elemental species separation and detection (IC-ICP-MS)	Detection limit coarse: 0.2 nmol/m3; Detection limit w: 0.5 nmol/m3
33	Iodide, soluble, standard deviation	I- sol std dev	±	Baker, Alex R
34	Iodate, soluble	[IO3]- sol	pmol/m³	Baker, Alex R	Elemental species separation and detection (IC-ICP-MS)	Detection limit coarse: 0.3 nmol/m3; Detection limit w: 1 nmol/m3
35	Iodate, soluble, standard deviation	[IO3]- sol std dev	±	Baker, Alex R
36	Iodine, soluble	I sol	pmol/m³	Baker, Alex R	Inductively coupled plasma - mass spectrometry (ICP-MS)	Detection limit coarse: 1.8 nmol/m3; Detection limit w: 3.7 nmol/m3
37	Iodine, soluble, standard deviation	I sol std dev	±	Baker, Alex R

License:

Creative Commons Attribution 4.0 International (CC-BY-4.0)

Status:

Curation Level: Enhanced curation (CurationLevelC)

Size:

664 data points

Data

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

1 Event	2 Date/Time	3 Date/Time 2	4 Latitude	5 Latitude 2	6 Longitude	7 Longitude 2	8 Sample label	9 Size fraction	10 Air vol [m³]	11 Na sol [nmol/m³]	12 Na sol std dev [±]	13 [NH4]+ sol [nmol/m³]	14 [NH4]+ sol std dev [±]	15 Mg sol [nmol/m³]	16 Mg sol std dev [±]	17 K sol [nmol/m³]	18 K sol std dev [±]	19 Ca sol [nmol/m³]	20 Ca sol std dev [±]	21 Cl- sol [nmol/m³]	22 Cl- sol std dev [±]	23 [NO3]- sol [nmol/m³]	24 [NO3]- sol std dev [±]	25 [SO4]2- sol [nmol/m³]	26 [SO4]2- sol std dev [±]	27 [C2O4]2- sol [nmol/m³]	28 [C2O4]2- sol std dev [±]	29 Br- sol [nmol/m³]	30 MSA [nmol/m³]	31 MSA std dev [±]	32 I- sol [pmol/m³]	33 I- sol std dev [±]	34 [IO3]- sol [pmol/m³]	35 [IO3]- sol std dev [±]	36 I sol [pmol/m³]	37 I sol std dev [±]
M138_MI04	2017-06-06T15:13	2017-06-08T16:50	-10.667	-12.038	-78.091	-78.500	MI04	coarse	2403.6	90.37	1.61	1.35	0.05	5.33	0.12	2.50	0.05	1.97	0.06	83.630	1.01	11.51	0.29	10.89	0.10	0.510	0.01	<0.098	0.13	0.02	12.04	0.06	19.82	0.10	37.19	0.97
M138_MI04	2017-06-06T15:13	2017-06-08T16:50	-10.667	-12.038	-78.091	-78.500	MI04	w	2403.6	<1.50		0.51	0.19	<0.26		0.06	0.01	<0.22		<0.002		0.19	0.05	7.04	0.20	0.420	0.01	<0.021	0.24	0.01	8.78	0.11	2.34	0.10	12.73	0.89
M138_MI05	2017-06-08T17:25	2017-06-10T19:00	-12.033	-12.435	-78.499	-77.811	MI05	coarse	2934.0	144.02	2.61	1.57	0.40	9.59	0.40	3.07	0.19	3.54	0.20	107.820	1.12	7.16	0.41	16.12	0.43	0.480	0.01	<0.080	<0.08		13.61	0.05	23.76	0.10	45.28	1.04
M138_MI05	2017-06-08T17:25	2017-06-10T19:00	-12.033	-12.435	-78.499	-77.811	MI05	w	2934.0	4.87	0.51	2.34	0.17	0.28	0.02	0.76	0.03	0.36	0.04	<0.006		0.10	0.04	5.11	0.14	0.290	0.00	<0.017	0.16	0.01	6.65	0.09	<0.25		8.34	0.78
M138_MI06	2017-06-10T19:35	2017-06-12T18:00	-12.445	-12.210	-77.810	-77.440	MI06	coarse	2145.6	91.50	1.44	<0.16		6.18	0.13	2.35	0.07	2.67	0.07	36.760	1.04	12.28	0.32	14.80	0.13	0.810	0.01	<0.110	0.11	0.02	23.37	0.07	17.39	0.11	50.87	1.04
M138_MI06	2017-06-10T19:35	2017-06-12T18:00	-12.445	-12.210	-77.810	-77.440	MI06	w	2145.6	<1.63		1.05	0.21	<0.29		0.13	0.02	<0.25		0.520	0.20	1.32	0.07	2.67	0.14	0.170	0.00	<0.023	0.08	0.01	10.50	0.12	0.52	0.14	14.54	0.86
M138_MI07	2017-06-12T18:35	2017-06-14T18:30	-12.210	-13.419	-77.440	-76.564	MI07	coarse	2365.8	48.82	1.42	10.27	0.13	4.11	0.12	2.29	0.06	2.23	0.06	16.290	1.01	20.32	0.36	14.37	0.13	0.760	0.01	<0.100			10.60	0.06	1.73	0.11	18.41	0.84
M138_MI07	2017-06-12T18:35	2017-06-14T18:30	-12.210	-13.419	-77.440	-76.564	MI07	w	2365.8	<1.48		2.29	0.41	<0.26		0.19	0.01	<0.22		<0.440		1.29	0.07	3.81	0.11	0.340	0.00	<0.021	0.07	0.01	14.16	0.11	<0.30		18.10	0.82
M138_MI08	2017-06-14T19:05	2017-06-16T18:00	-13.430	-14.328	-76.560	-77.156	MI08	coarse	2599.2	77.55	1.40	4.77	0.06	5.58	0.11	2.25	0.05	3.53	0.05	45.330	0.84	11.80	0.26	14.95	0.12	0.410	0.01	<0.091	0.12	0.02	7.04	0.06	11.24	0.09	20.89	0.60
M138_MI08	2017-06-14T19:05	2017-06-16T18:00	-13.430	-14.328	-76.560	-77.156	MI08	w	2599.2	15.30	0.75	21.69	0.45	0.53	0.04	2.26	0.04	0.87	0.04	<0.012		<0.05		14.17	0.21	0.310	0.01	<0.019	0.27	0.01	7.17	0.10	<0.28		8.73	0.82
M138_MI09	2017-06-16T19:00	2017-06-17T18:00	-14.347	-14.573	-77.156	-76.937	MI09	coarse	1271.4	97.67	2.13	1.54	0.10	9.46	0.24	1.66	0.14	5.35	0.14	80.520	1.75	<2.91		8.50	0.18	0.110	0.03	<0.190			3.64	0.13	19.32	0.19	26.50	1.32
M138_MI09	2017-06-16T19:00	2017-06-17T18:00	-14.347	-14.573	-77.156	-76.937	MI09	w	1271.4	6.18	1.08	<0.88		<0.48		0.35	0.03	<0.42		<0.820		<0.11		4.47	0.21	0.060	0.01	<0.039	0.20	0.02	2.24	0.22	11.39	0.20	15.21	1.33
M138_MI10	2017-06-17T22:00	2017-06-20T18:40	-14.682	-15.897	-76.849	-76.076	MI10	coarse	3910.2	88.27	1.81	0.33	0.27	3.83	0.16	1.51	0.08	1.59	0.08	74.080	0.82	3.56	0.15	9.65	0.39	0.150	0.01	<0.060	0.09	0.01	3.79	0.04	22.69	0.11	28.24	0.54
M138_MI10	2017-06-17T22:00	2017-06-20T18:40	-14.682	-15.897	-76.849	-76.076	MI10	w	3910.2	13.95	0.51	5.42	0.30	0.47	0.02	1.42	0.01	0.55	0.02	<0.012		<0.04		<0.18		<0.006		<0.013	<0.02		3.58	0.07	2.09	0.07	6.46	0.45
M138_MI11	2017-06-20T19:15	2017-06-22T18:00	-15.899	-14.806	-76.075	-77.999	MI11	coarse	1849.2	105.03	1.30	<0.19		6.82	0.20	2.60	0.11	3.10	0.12	87.330	1.19	9.71	0.36	7.86	0.12	0.270	0.01	<0.130	0.14	0.02	6.04	0.09	45.44	0.23	58.20	0.87
M138_MI11	2017-06-20T19:15	2017-06-22T18:00	-15.899	-14.806	-76.075	-77.999	MI11	w	1849.2	5.24	0.71	<0.61		<0.33		0.41	0.04	<0.29		0.560	0.22	0.26	0.06	3.80	0.14	0.130	0.00	<0.027	0.14	0.01	3.04	0.15	1.85	0.16	6.68	0.77
M138_MI12	2017-06-22T18:45	2017-06-24T18:00	-14.767	-12.085	-78.033	-77.332	MI12	coarse	2485.8	43.11	1.15	0.67	0.05	3.87	0.12	1.27	0.07	3.03	0.07	28.730	1.07	13.24	0.35	6.83	0.11	0.220	0.01	<0.095			5.05	0.07	9.30	0.11	18.65	0.58
M138_MI12	2017-06-22T18:45	2017-06-24T18:00	-14.767	-12.085	-78.033	-77.332	MI12	w	2485.8	4.74	0.50	3.81	0.44	<0.25		0.54	0.02	0.27	0.04	0.910	0.18	1.83	0.05	5.09	0.17	0.170	0.01	<0.020	0.18	0.01	7.26	0.11	0.57	0.13	10.45	0.58
M138_MI13	2017-06-24T18:40	2017-06-26T20:45	-11.990	-6.431	-77.320	-81.251	MI13	coarse	1641.0	42.58	1.59	8.99	0.13	5.34	0.20	2.08	0.11	5.15	0.12	25.840	1.51	22.12	0.47	10.37	0.13	0.480	0.02	<0.140	0.12	0.03	3.66	0.12	3.50	0.20	10.07	0.78
M138_MI13	2017-06-24T18:40	2017-06-26T20:45	-11.990	-6.431	-77.320	-81.251	MI13	w	1641.0	7.46	0.90	7.33	0.27	0.38	0.04	1.00	0.07	0.49	0.06	0.950	0.25	4.05	0.12	7.19	0.17	0.620	0.01	<0.030	0.15	0.01	11.39	0.17	<0.44		14.60	0.95
M138_MI14	2017-06-26T22:20	2017-06-28T21:30	-6.335	-1.953	-81.273	-85.833	MI14	coarse	855.0	118.18	2.76	<0.41		7.71	0.44	3.20	0.25	2.87	0.26	117.070	2.51	<4.33		8.35	0.24	0.230	0.03	<0.280	<0.20		1.44	0.21	6.36	0.40	10.45	1.49
M138_MI14	2017-06-26T22:20	2017-06-28T21:30	-6.335	-1.953	-81.273	-85.833	MI14	w	855.0	5.12	1.49	<1.31		<0.72		0.34	0.04	<0.62		3.300	0.51	0.49	0.13	1.00	0.36	0.050	0.01	<0.058	0.09	0.03	0.84	0.34	2.08	0.40	4.35	1.44
M138_MI15	2017-06-28T22:00	2017-07-01T18:15	-1.853	5.290	-85.833	-82.225	MI15	coarse	1299.6	102.96	1.73	<0.27		6.67	0.31	2.67	0.18	2.59	0.19	99.270	2.12	3.99	0.72	7.20	0.23	0.270	0.03	<0.180			0.60	0.14	2.85	0.28	4.27	0.94
M138_MI15	2017-06-28T22:00	2017-07-01T18:15	-1.853	5.290	-85.833	-82.225	MI15	w	1299.6	6.68	1.00	<0.86		<0.47		0.27	0.03	<0.41		4.900	0.31	0.43	0.09	1.94	0.22	0.090	0.01	<0.038	0.08	0.02	<0.53		0.87	0.22	<2.85