Tracing variability in the iodine isotopes and species along surface water transect from the North Sea to the Canary Islands

He, Peng; Aldahan, Ala; Hou, Xiaolin; Possnert, Göran

doi:10.1007/s10967-015-4449-y

Cited by 2 publications

(1 citation statement)

References 26 publications

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“…IO 3 − error ~2.5–5% 34,35 b. TII error ~2.5–5% 34,35 348Electrochemical3 Cathodic Stripping Square Wave Voltammetry (CSSWV) 15,36 2–10%; 15,16,36–38 frequently quoted as ≤5%307064 Differential Pulse Cathodic Stripping voltammetry (sulphite removal of oxygen) 39 1% 40 115 Automated flow through electrode 41 ~5% or 10 nM in artificial seawater 23 113Chromatographic6 Anion exchange + precipitation , neutron activation analysis (NAA) 42 5% 42 277 Anion exchange + Inductively coupled plasma mass spectrometry (ICP-MS) 43–45 3–7% 43,45 4908 Anion exchange High Performance Liquid Chromatography (HPLC) with spectrophotometric detection 46 ~5% 46 179 Matrix elimination ion chromatography with spectrophotometric detection 47 2% 47 113Electrokinetic10 Capillary electrophoresis 48 ~3% 49 13Precipitation11 Ag Precipitation + spectrophotometry 22,24 3–5% 20,24 27013 Pd precipitation + NAA 50 ~5% (13 nM) 50 12…”

Section: Methodsmentioning

confidence: 99%

Global sea-surface iodide observations, 1967–2018

et al. 2019

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The marine iodine cycle has significant impacts on air quality and atmospheric chemistry. Specifically, the reaction of iodide with ozone in the top few micrometres of the surface ocean is an important sink for tropospheric ozone (a pollutant gas) and the dominant source of reactive iodine to the atmosphere. Sea surface iodide parameterisations are now being implemented in air quality models, but these are currently a major source of uncertainty. Relatively little observational data is available to estimate the global surface iodide concentrations, and this data has not hitherto been openly available in a collated, digital form. Here we present all available sea surface (<20 m depth) iodide observations. The dataset includes values digitised from published manuscripts, published and unpublished data supplied directly by the originators, and data obtained from repositories. It contains 1342 data points, and spans latitudes from 70°S to 68°N, representing all major basins. The data may be used to model sea surface iodide concentrations or as a reference for future observations.

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