Processes Affecting Oxygen Isotope Ratios of Atmospheric and Ecosystem Sulfate in Two Contrasting Forest Catchments in Central Europe

Sulfate aerosols are harmful as respirable particles. They also play a role as cloud condensation nuclei and have radiative effects on global climate. A combination of δ18O−SO4 data with catchment sulfur mass balances was used to constrain processes affecting S cycling in the atmosphere and spruce f...

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Veröffentlicht in:Environmental science & technology 2007-02, Vol.41 (3), p.703-709
Hauptverfasser: Novák, Martin, Mitchell, Myron J, Jačková, Iva, Buzek, František, Schweigstillová, Jana, Erbanová, Lucie, Přikryl, Richard, Fottová, Daniela
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container_title Environmental science & technology
container_volume 41
creator Novák, Martin
Mitchell, Myron J
Jačková, Iva
Buzek, František
Schweigstillová, Jana
Erbanová, Lucie
Přikryl, Richard
Fottová, Daniela
description Sulfate aerosols are harmful as respirable particles. They also play a role as cloud condensation nuclei and have radiative effects on global climate. A combination of δ18O−SO4 data with catchment sulfur mass balances was used to constrain processes affecting S cycling in the atmosphere and spruce forests of the Czech Republic. Extremely high S fluxes via spruce throughfall and runoff were measured at Jezeri (49 and 80 kg S ha-1 yr-1, respectively). The second catchment, Na Lizu, was 10 times less polluted. In both catchments, δ18O−SO4 decreased in the following order:  open-area precipitation > throughfall > runoff. The δ18O−SO4 values of throughfall exhibited a seasonal pattern at both sites, with maxima in summer and minima in winter. This seasonal pattern paralleled δ18O−H2O values, which were offset by −18‰. Sulfate in throughfall was predominantly formed by heterogeneous (aqueous) oxidation of SO2. Wet-deposited sulfate in an open area did not show systematic δ18O−SO4 trends, suggesting formation by homogeneous (gaseous) oxidation and/or transport from large distances. The percentage of incoming S that is organically cycled in soil was similar under the high and the low pollution. High-temperature 18O-rich sulfate was not detected, which contrasts with North American industrial sites.
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Sci. Technol</addtitle><description>Sulfate aerosols are harmful as respirable particles. They also play a role as cloud condensation nuclei and have radiative effects on global climate. A combination of δ18O−SO4 data with catchment sulfur mass balances was used to constrain processes affecting S cycling in the atmosphere and spruce forests of the Czech Republic. Extremely high S fluxes via spruce throughfall and runoff were measured at Jezeri (49 and 80 kg S ha-1 yr-1, respectively). The second catchment, Na Lizu, was 10 times less polluted. In both catchments, δ18O−SO4 decreased in the following order:  open-area precipitation &gt; throughfall &gt; runoff. The δ18O−SO4 values of throughfall exhibited a seasonal pattern at both sites, with maxima in summer and minima in winter. This seasonal pattern paralleled δ18O−H2O values, which were offset by −18‰. Sulfate in throughfall was predominantly formed by heterogeneous (aqueous) oxidation of SO2. Wet-deposited sulfate in an open area did not show systematic δ18O−SO4 trends, suggesting formation by homogeneous (gaseous) oxidation and/or transport from large distances. The percentage of incoming S that is organically cycled in soil was similar under the high and the low pollution. 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Psychology</topic><topic>Global environmental pollution</topic><topic>ISOTOPE RATIO</topic><topic>MASS TRANSFER</topic><topic>North America</topic><topic>OXIDATION</topic><topic>OXYGEN 18</topic><topic>Oxygen Isotopes - analysis</topic><topic>Pollution</topic><topic>Pollution, environment geology</topic><topic>Rain</topic><topic>SEASONAL VARIATIONS</topic><topic>Seasons</topic><topic>SPRUCES</topic><topic>SULFATES</topic><topic>Sulfates - analysis</topic><topic>SULFUR CYCLE</topic><topic>SULFUR DIOXIDE</topic><topic>Sulfuric acid</topic><topic>Terrestrial environment, soil, air</topic><topic>Trees</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Novák, Martin</creatorcontrib><creatorcontrib>Mitchell, Myron J</creatorcontrib><creatorcontrib>Jačková, Iva</creatorcontrib><creatorcontrib>Buzek, František</creatorcontrib><creatorcontrib>Schweigstillová, Jana</creatorcontrib><creatorcontrib>Erbanová, Lucie</creatorcontrib><creatorcontrib>Přikryl, Richard</creatorcontrib><creatorcontrib>Fottová, Daniela</creatorcontrib><collection>Istex</collection><collection>Pascal-Francis</collection><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>Biotechnology Research Abstracts</collection><collection>Environment Abstracts</collection><collection>Industrial and Applied Microbiology Abstracts (Microbiology A)</collection><collection>Toxicology Abstracts</collection><collection>Technology Research Database</collection><collection>Environmental Sciences and Pollution Management</collection><collection>Engineering Research Database</collection><collection>Biotechnology and BioEngineering Abstracts</collection><collection>Environment Abstracts</collection><collection>Pollution Abstracts</collection><collection>Sustainability Science Abstracts</collection><collection>Water Resources Abstracts</collection><collection>ASFA: Aquatic Sciences and Fisheries Abstracts</collection><collection>Aquatic Science &amp; Fisheries Abstracts (ASFA) 3: Aquatic Pollution &amp; Environmental Quality</collection><collection>Aquatic Science &amp; Fisheries Abstracts (ASFA) Professional</collection><collection>OSTI.GOV</collection><jtitle>Environmental science &amp; technology</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Novák, Martin</au><au>Mitchell, Myron J</au><au>Jačková, Iva</au><au>Buzek, František</au><au>Schweigstillová, Jana</au><au>Erbanová, Lucie</au><au>Přikryl, Richard</au><au>Fottová, Daniela</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Processes Affecting Oxygen Isotope Ratios of Atmospheric and Ecosystem Sulfate in Two Contrasting Forest Catchments in Central Europe</atitle><jtitle>Environmental science &amp; technology</jtitle><addtitle>Environ. Sci. Technol</addtitle><date>2007-02-01</date><risdate>2007</risdate><volume>41</volume><issue>3</issue><spage>703</spage><epage>709</epage><pages>703-709</pages><issn>0013-936X</issn><eissn>1520-5851</eissn><coden>ESTHAG</coden><abstract>Sulfate aerosols are harmful as respirable particles. They also play a role as cloud condensation nuclei and have radiative effects on global climate. A combination of δ18O−SO4 data with catchment sulfur mass balances was used to constrain processes affecting S cycling in the atmosphere and spruce forests of the Czech Republic. Extremely high S fluxes via spruce throughfall and runoff were measured at Jezeri (49 and 80 kg S ha-1 yr-1, respectively). The second catchment, Na Lizu, was 10 times less polluted. In both catchments, δ18O−SO4 decreased in the following order:  open-area precipitation &gt; throughfall &gt; runoff. The δ18O−SO4 values of throughfall exhibited a seasonal pattern at both sites, with maxima in summer and minima in winter. This seasonal pattern paralleled δ18O−H2O values, which were offset by −18‰. Sulfate in throughfall was predominantly formed by heterogeneous (aqueous) oxidation of SO2. Wet-deposited sulfate in an open area did not show systematic δ18O−SO4 trends, suggesting formation by homogeneous (gaseous) oxidation and/or transport from large distances. The percentage of incoming S that is organically cycled in soil was similar under the high and the low pollution. High-temperature 18O-rich sulfate was not detected, which contrasts with North American industrial sites.</abstract><cop>Washington, DC</cop><pub>American Chemical Society</pub><pmid>17328173</pmid><doi>10.1021/es0610028</doi><tpages>7</tpages></addata></record>
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ispartof Environmental science & technology, 2007-02, Vol.41 (3), p.703-709
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source MEDLINE; ACS Publications
subjects AEROSOLS
Air Pollutants - analysis
AIR POLLUTION
AIR POLLUTION MONITORING
Animal, plant and microbial ecology
Applied ecology
Applied sciences
Atmosphere
ATMOSPHERIC PRECIPITATIONS
Biological and medical sciences
Climate
CLIMATIC CHANGE
Comparative analysis
CZECH REPUBLIC
DEPOSITION
Earth sciences
Earth, ocean, space
Ecosystem
Ecotoxicology, biological effects of pollution
Engineering and environment geology. Geothermics
Environmental Monitoring
ENVIRONMENTAL SCIENCES
ENVIRONMENTAL TRANSPORT
EUROPE
Exact sciences and technology
FORESTS
Freshwater
Fundamental and applied biological sciences. Psychology
Global environmental pollution
ISOTOPE RATIO
MASS TRANSFER
North America
OXIDATION
OXYGEN 18
Oxygen Isotopes - analysis
Pollution
Pollution, environment geology
Rain
SEASONAL VARIATIONS
Seasons
SPRUCES
SULFATES
Sulfates - analysis
SULFUR CYCLE
SULFUR DIOXIDE
Sulfuric acid
Terrestrial environment, soil, air
Trees
title Processes Affecting Oxygen Isotope Ratios of Atmospheric and Ecosystem Sulfate in Two Contrasting Forest Catchments in Central Europe
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