Decreasing trends in total gaseous mercury observations in baseline air at Mace Head, Ireland from 1996 to 2011

R. Ebinghaus; S. G. Jennings; H. H. Kock; R. G. Derwent; A. J. Manning; T. G. Spain; A. Weigelt

doi:10.1051/e3sconf/20130107009

Decreasing trends in total gaseous mercury observations in baseline air at Mace Head, Ireland from 1996 to 2011

R. Ebinghaus
, S. G. Jennings
, H. H. Kock
, R. G. Derwent
, A. J. Manning
, T. G. Spain
, A. Weigelt

Physics

Research output: Contribution to a Journal (Peer & Non Peer) › Conference article › peer-review

Abstract

The Mace Head dataset comprises the longest existing time series of atmospheric mercury measurements with high time resolution in the temperate marine background atmosphere, starting in September 1995. For this study, the concentrations of total gaseous mercury in baseline air masses arriving at Mace Head, Ireland have been analyzed for possible trends in the atmospheric mercury background concentration over a 16-year period (i.e., 1996-2011). Statistical analyses have revealed a significant negative (downwards) trend of -0.027 +/- 0.01 ng/m³ yr^-1, or -1.4 to 1.8% per year. Furthermore, evidence of a seasonal cycle was found with somewhat higher concentrations during the winter time and somewhat lower concentrations during summer.

Original language	English
Article number	07009
Journal	E3S Web of Conferences
Volume	1
DOIs	https://doi.org/10.1051/e3sconf/20130107009
Publication status	Published - 23 Apr 2013
Event	16th International Conference on Heavy Metals in the Environment, ICHMET 2012 - Rome, Italy Duration: 23 Sep 2013 → 27 Sep 2013

Keywords

GMOS
Hg
Long term trends
Mace head
Total gaseous mercury

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10.1051/e3sconf/20130107009

Cite this

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title = "Decreasing trends in total gaseous mercury observations in baseline air at Mace Head, Ireland from 1996 to 2011",

abstract = "The Mace Head dataset comprises the longest existing time series of atmospheric mercury measurements with high time resolution in the temperate marine background atmosphere, starting in September 1995. For this study, the concentrations of total gaseous mercury in baseline air masses arriving at Mace Head, Ireland have been analyzed for possible trends in the atmospheric mercury background concentration over a 16-year period (i.e., 1996-2011). Statistical analyses have revealed a significant negative (downwards) trend of -0.027 +/- 0.01 ng/m3 yr-1, or -1.4 to 1.8\% per year. Furthermore, evidence of a seasonal cycle was found with somewhat higher concentrations during the winter time and somewhat lower concentrations during summer.",

keywords = "GMOS, Hg, Long term trends, Mace head, Total gaseous mercury",

author = "R. Ebinghaus and Jennings, \{S. G.\} and Kock, \{H. H.\} and Derwent, \{R. G.\} and Manning, \{A. J.\} and Spain, \{T. G.\} and A. Weigelt",

note = "Publisher Copyright: {\textcopyright} Owned by the authors, published by EDP Sciences, 2013.; 16th International Conference on Heavy Metals in the Environment, ICHMET 2012 ; Conference date: 23-09-2013 Through 27-09-2013",

year = "2013",

month = apr,

day = "23",

doi = "10.1051/e3sconf/20130107009",

language = "English",

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journal = "E3S Web of Conferences",

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TY - JOUR

T1 - Decreasing trends in total gaseous mercury observations in baseline air at Mace Head, Ireland from 1996 to 2011

AU - Ebinghaus, R.

AU - Jennings, S. G.

AU - Kock, H. H.

AU - Derwent, R. G.

AU - Manning, A. J.

AU - Spain, T. G.

AU - Weigelt, A.

N1 - Publisher Copyright: © Owned by the authors, published by EDP Sciences, 2013.

PY - 2013/4/23

Y1 - 2013/4/23

N2 - The Mace Head dataset comprises the longest existing time series of atmospheric mercury measurements with high time resolution in the temperate marine background atmosphere, starting in September 1995. For this study, the concentrations of total gaseous mercury in baseline air masses arriving at Mace Head, Ireland have been analyzed for possible trends in the atmospheric mercury background concentration over a 16-year period (i.e., 1996-2011). Statistical analyses have revealed a significant negative (downwards) trend of -0.027 +/- 0.01 ng/m3 yr-1, or -1.4 to 1.8% per year. Furthermore, evidence of a seasonal cycle was found with somewhat higher concentrations during the winter time and somewhat lower concentrations during summer.

AB - The Mace Head dataset comprises the longest existing time series of atmospheric mercury measurements with high time resolution in the temperate marine background atmosphere, starting in September 1995. For this study, the concentrations of total gaseous mercury in baseline air masses arriving at Mace Head, Ireland have been analyzed for possible trends in the atmospheric mercury background concentration over a 16-year period (i.e., 1996-2011). Statistical analyses have revealed a significant negative (downwards) trend of -0.027 +/- 0.01 ng/m3 yr-1, or -1.4 to 1.8% per year. Furthermore, evidence of a seasonal cycle was found with somewhat higher concentrations during the winter time and somewhat lower concentrations during summer.

KW - GMOS

KW - Hg

KW - Long term trends

KW - Mace head

KW - Total gaseous mercury

UR - https://www.scopus.com/pages/publications/85016471053

U2 - 10.1051/e3sconf/20130107009

DO - 10.1051/e3sconf/20130107009

M3 - Conference article

AN - SCOPUS:85016471053

SN - 2267-1242

VL - 1

JO - E3S Web of Conferences

JF - E3S Web of Conferences

M1 - 07009

T2 - 16th International Conference on Heavy Metals in the Environment, ICHMET 2012

Y2 - 23 September 2013 through 27 September 2013

ER -

Decreasing trends in total gaseous mercury observations in baseline air at Mace Head, Ireland from 1996 to 2011

Abstract

Keywords

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