Observations in eastern England of elevated methyl iodide concentrations in air of Atlantic origin

D.E. Oram; S.A. Penkett

doi:10.1016/1352-2310(94)90293-3

Observations in eastern England of elevated methyl iodide concentrations in air of Atlantic origin

D.E. Oram, S.A. Penkett

Research output: Contribution to journal › Article › peer-review

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Abstract

Atmospheric methyl iodide (CHI) has been measured at a ground-based site in eastern England for two consecutive summers. Maximum values of 43.1 pptv and 28.9 pptv were recorded in 1989 and 1990, respectively. CHI was not detectable in the autumn and winter months. Episodes of elevated concentrations persisted for periods ranging from a few hours to several days. The origin of much of the observed CHI would appear to be the Atlantic Ocean, indicating the presence of large source areas, possibly phytoplankton blooms, in ocean waters. Estimates are made of the dry deposition velocity of CHI, and the potential impact of elevated tropospheric levels on the human uptake of iodine.

Original language	English
Pages (from-to)	1159-1174
Number of pages	16
Journal	Atmospheric Environment
Volume	28
Issue number	6
DOIs	https://doi.org/10.1016/1352-2310(94)90293-3
Publication status	Published - 1 Apr 1994

Keywords

Methyl iodide
GC-ECD
marine production
phytoplankton
Atlantic Ocean
dry deposition

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1016/1352-2310(94)90293-3

Cite this

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abstract = "Atmospheric methyl iodide (CHI) has been measured at a ground-based site in eastern England for two consecutive summers. Maximum values of 43.1 pptv and 28.9 pptv were recorded in 1989 and 1990, respectively. CHI was not detectable in the autumn and winter months. Episodes of elevated concentrations persisted for periods ranging from a few hours to several days. The origin of much of the observed CHI would appear to be the Atlantic Ocean, indicating the presence of large source areas, possibly phytoplankton blooms, in ocean waters. Estimates are made of the dry deposition velocity of CHI, and the potential impact of elevated tropospheric levels on the human uptake of iodine.",

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AU - Oram, D.E.

AU - Penkett, S.A.

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N2 - Atmospheric methyl iodide (CHI) has been measured at a ground-based site in eastern England for two consecutive summers. Maximum values of 43.1 pptv and 28.9 pptv were recorded in 1989 and 1990, respectively. CHI was not detectable in the autumn and winter months. Episodes of elevated concentrations persisted for periods ranging from a few hours to several days. The origin of much of the observed CHI would appear to be the Atlantic Ocean, indicating the presence of large source areas, possibly phytoplankton blooms, in ocean waters. Estimates are made of the dry deposition velocity of CHI, and the potential impact of elevated tropospheric levels on the human uptake of iodine.

AB - Atmospheric methyl iodide (CHI) has been measured at a ground-based site in eastern England for two consecutive summers. Maximum values of 43.1 pptv and 28.9 pptv were recorded in 1989 and 1990, respectively. CHI was not detectable in the autumn and winter months. Episodes of elevated concentrations persisted for periods ranging from a few hours to several days. The origin of much of the observed CHI would appear to be the Atlantic Ocean, indicating the presence of large source areas, possibly phytoplankton blooms, in ocean waters. Estimates are made of the dry deposition velocity of CHI, and the potential impact of elevated tropospheric levels on the human uptake of iodine.

KW - Methyl iodide

KW - GC-ECD

KW - marine production

KW - phytoplankton

KW - Atlantic Ocean

KW - dry deposition

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JO - Atmospheric Environment

JF - Atmospheric Environment

SN - 1352-2310

IS - 6

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Observations in eastern England of elevated methyl iodide concentrations in air of Atlantic origin

Abstract

Keywords

UN SDGs

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