Real-time detection of arsenic cations from ambient air in boreal forest and lake environments

Research output: Contribution to journalArticleScientificpeer-review

Abstract

We present the first observation of airborne organic and inorganic arsenic cations, detected in real time within the boreal forest in Hyytiala, Finland, and over nearby Lake Kuivajarvi. The technique of atmospheric-pressure interface time-of-flight mass spectrometry provides online, in situ monitoring as well as chemical information about the arsenic species, identified as protonated trimethylarsine oxide (AsC3H10O+) and AsO(H2O)(n)(+) clusters (n = 0-4). Quantum chemical calculations confirm that the proposed cations are stable under atmospheric conditions. Our most remarkable discovery is that minimal arsenic appeared during spring 2011 until after the ground began to thaw, triggering a sharp increase in airborne arsenic levels as snowmelt flooded the soil with water and stimulated microbial activity. These findings reveal that volatile arsenic species, detected here as atmospheric ions, link the biogeochemical cycling of arsenic through air, soil, water, and living organisms.
Original languageEnglish
JournalEnvironmental Science & Technology Letters
Volume3
Issue number2
Pages (from-to)42-46
Number of pages5
ISSN2328-8930
DOIs
Publication statusPublished - Feb 2016
MoE publication typeA1 Journal article-refereed

Fields of Science

  • 1171 Geosciences
  • 1172 Environmental sciences
  • 4112 Forestry

Cite this

@article{d2e060154da04918bf2fea09731d01ef,
title = "Real-time detection of arsenic cations from ambient air in boreal forest and lake environments",
abstract = "We present the first observation of airborne organic and inorganic arsenic cations, detected in real time within the boreal forest in Hyytiala, Finland, and over nearby Lake Kuivajarvi. The technique of atmospheric-pressure interface time-of-flight mass spectrometry provides online, in situ monitoring as well as chemical information about the arsenic species, identified as protonated trimethylarsine oxide (AsC3H10O+) and AsO(H2O)(n)(+) clusters (n = 0-4). Quantum chemical calculations confirm that the proposed cations are stable under atmospheric conditions. Our most remarkable discovery is that minimal arsenic appeared during spring 2011 until after the ground began to thaw, triggering a sharp increase in airborne arsenic levels as snowmelt flooded the soil with water and stimulated microbial activity. These findings reveal that volatile arsenic species, detected here as atmospheric ions, link the biogeochemical cycling of arsenic through air, soil, water, and living organisms.",
keywords = "1171 Geosciences, 1172 Environmental sciences, 4112 Forestry",
author = "Faust, {Jennifer A.} and Heikki Junninen and Mikael Ehn and Xuemeng Chen and Kai Ruusuvuori and Antti-Jussi Kieloaho and Jaana B{\"a}ck and Anne Ojala and Tuija Jokinen and Worsnop, {Douglas R.} and Markku Kulmala and Tuukka Pet{\"a}j{\"a}",
year = "2016",
month = "2",
doi = "10.1021/acs.estlett.5b00308",
language = "English",
volume = "3",
pages = "42--46",
journal = "Environmental Science & Technology Letters",
issn = "2328-8930",
publisher = "American Chemical Society",
number = "2",

}

TY - JOUR

T1 - Real-time detection of arsenic cations from ambient air in boreal forest and lake environments

AU - Faust, Jennifer A.

AU - Junninen, Heikki

AU - Ehn, Mikael

AU - Chen, Xuemeng

AU - Ruusuvuori, Kai

AU - Kieloaho, Antti-Jussi

AU - Bäck, Jaana

AU - Ojala, Anne

AU - Jokinen, Tuija

AU - Worsnop, Douglas R.

AU - Kulmala, Markku

AU - Petäjä, Tuukka

PY - 2016/2

Y1 - 2016/2

N2 - We present the first observation of airborne organic and inorganic arsenic cations, detected in real time within the boreal forest in Hyytiala, Finland, and over nearby Lake Kuivajarvi. The technique of atmospheric-pressure interface time-of-flight mass spectrometry provides online, in situ monitoring as well as chemical information about the arsenic species, identified as protonated trimethylarsine oxide (AsC3H10O+) and AsO(H2O)(n)(+) clusters (n = 0-4). Quantum chemical calculations confirm that the proposed cations are stable under atmospheric conditions. Our most remarkable discovery is that minimal arsenic appeared during spring 2011 until after the ground began to thaw, triggering a sharp increase in airborne arsenic levels as snowmelt flooded the soil with water and stimulated microbial activity. These findings reveal that volatile arsenic species, detected here as atmospheric ions, link the biogeochemical cycling of arsenic through air, soil, water, and living organisms.

AB - We present the first observation of airborne organic and inorganic arsenic cations, detected in real time within the boreal forest in Hyytiala, Finland, and over nearby Lake Kuivajarvi. The technique of atmospheric-pressure interface time-of-flight mass spectrometry provides online, in situ monitoring as well as chemical information about the arsenic species, identified as protonated trimethylarsine oxide (AsC3H10O+) and AsO(H2O)(n)(+) clusters (n = 0-4). Quantum chemical calculations confirm that the proposed cations are stable under atmospheric conditions. Our most remarkable discovery is that minimal arsenic appeared during spring 2011 until after the ground began to thaw, triggering a sharp increase in airborne arsenic levels as snowmelt flooded the soil with water and stimulated microbial activity. These findings reveal that volatile arsenic species, detected here as atmospheric ions, link the biogeochemical cycling of arsenic through air, soil, water, and living organisms.

KW - 1171 Geosciences

KW - 1172 Environmental sciences

KW - 4112 Forestry

U2 - 10.1021/acs.estlett.5b00308

DO - 10.1021/acs.estlett.5b00308

M3 - Article

VL - 3

SP - 42

EP - 46

JO - Environmental Science & Technology Letters

JF - Environmental Science & Technology Letters

SN - 2328-8930

IS - 2

ER -