Výsledky vyhledávání - "C.S. Christensen"

Ozone uptake by an evergreen forest canopy: temporal variation and possible mechanisms

Autor: C.S Christensen, P Hummelshoej, Helge Ro-Poulsen, Kim Pilegaard, M.F. Hovmand, Teis Nørgaard Mikkelsen, N.O. Jensen

Publikováno v: Mikkelsen, T N, Ro-Poulsen, H, Pilegaard, K, Hovmand, M F, Jensen, N O, Christensen, C S & Hummelshoej, P 2000, ' Ozone Uptake by an Evergreen Forest Canopy: Temporal Variation and Possible Mechanisms ' Environmental Pollution, vol. 109, no. 3, pp. 423-429 .

Patterns of ozone concentration ([O 3 ]), O 3 deposition velocity ( v d ) and O 3 flux ( F c ) over an evergreen forest canopy are shown in relation to measuring method, physiological activity of the trees, and time of year. The gradient and eddy cor

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::54bd5540bbf1015d3c5608106896f27a
https://doi.org/10.1016/s0269-7491(00)00045-2

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Sources to formic acid studied by carbon isotopic analysis and air mass characterization

Autor: S. Wessel, Christian Lohse, K.C. Klitgaard, J.K. Jacobsen, H.E. Jørgensen, Jan Heinemeier, Lone Keld Petersen, T. Stroyer Hansen, C.S. Christensen, Marianne Glasius, J.K. Rasmussen, Elisabetta Boaretto

Publikováno v: Glasius, M, Wessel, S, Christensen, C S, Jacobsen, J K, Jørgensen, H E, Klitgård, K C, Petersen, L, Rasmussen, J K, Hansen, T S & Lohse, C 2000, ' Sources to formic acid studied by carbon isotopic analysis and air mass characterization ', Atmospheric Environment, vol. 34, pp. 2471-79 . https://doi.org/10.1016/s1352-2310(99)00416-1

The carbon isotopic composition of formic acid samples from a rural and a semi-remote area in Denmark has been investigated by collection of 5–6 day integrated samples during winter and spring. The results show that 80–100% of formic acid stems f

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f28f69cb80a795e67a4f21e33af7c3d2
https://doi.org/10.1016/s1352-2310(99)00416-1

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Determination of the terpene flux from orange species and Norway spruce by relaxed eddy accumulation

Autor: Kim Pilegaard, B.R. Larsen, Christian Lohse, Poul Hummelshøj, N.O. Jensen, C.S. Christensen, Henrik Skov

Publikováno v: Christensen, C S, Hummelshøj, P, Jensen, N O, Larsen, B, Lohse, C, Pilegaard, K & Skov, H 2000, ' Determination of the Terpene Flux from Orange Species and Norway Spruce by Relaxed Eddy Accumulation ', Atmospheric Environment, vol. 34, pp. 3057-3067 .
Aarhus University

Terpene fluxes from a Norway spruce (Picea abies) forest and an orange orchard (Citrus clementii and Citrus sinensis) were measured by relaxed eddy accumulation (REA) during summer 1997. α-pinene and β-pinene were the most abundant terpenes emitted

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8a0f5c3ed7ac4114fbd5800c10c10510
https://doi.org/10.1016/s1352-2310(99)00502-6

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C5–C8 non-methane hydrocarbon measurements in Copenhagen: concentrations, sources and emission estimates

Autor: Henrik Skov, C.S. Christensen, Finn Palmgren

Publikováno v: Christensen, C S, Skov, H & Palmgren, F 1999, ' C5-C8 Non-methane Hydrocarbon Measurements in Copenhagen: Concentrations, Sources and Emission Estimates ', The Science of the Total Environment, vol. 236, pp. 163-171 .
Aarhus University

Hourly measurements of 23 non-methane hydrocarbons (NMHC) ranging from C 5 to C 8 were measured in the busy street Jagtvej in central Copenhagen during 5 working days in December 1997. The compounds were concentrated at absorbent tubes by active samp

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::44d1360d2a7d654be9f9fb3b54b13502
https://doi.org/10.1016/s0048-9697(99)00274-0

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Benzene Exposure and the Effect of Traffic Pollution in Copenhagen, Denmark

Autor: Henrik Skov, Gitte Lorenzen, Helle Vibeke Andersen, Per Løfstrøm, A.B. Hansen, C.S. Christensen

Publikováno v: Skov, H, Hansen, A B, Lorenzen, G, Andersen, H V, Løfstrøm, P & Christensen, C S 2001, ' Benzene Exposure and the Effect of Traffic Pollution in Copenhagen, Denmark ', Atmospheric Environment, vol. 35, pp. 2463-2471 .
Aarhus University

Benzene is a carcinogenic compound, which is emitted from petrol-fuelled cars and thus is found ubiquitous in all cities. As part of the project Monitoring of Atmospheric Concentrations of Benzene in European Towns and Homes (MACBETH) six campaigns w

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5cf67e324cfd40623e7802564f4fdc92
https://pure.au.dk/portal/da/publications/benzene-exposure-and-the-effect-of-traffic-pollution-in-copenhagen-denmark(13720e30-7e9d-11dd-a5a8-000ea68e967b).html

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An Overview of Commonly Used Methods for Measuring Benzene in Ambient Air

Autor: C.S. Christensen, Finn Palmgren, Henrik Skov, Anne Lindskog

Publikováno v: Skov, H, Lindskog, A, Palmgren, F & Christensen, C S 2001, ' An Overview of Commonly Used Methods for Measuring Benzene in Ambient Air ', Atmospheric Environment, vol. 35, no. Supplement 1, pp. S141-S148 .
Scopus-Elsevier
Aarhus University

Emitted primarily from traffic, benzene has been identified as a carcinogen, inflicting deleterious effects on human health. This has mandated a high degree of scientific attention, both to measure ambient levels in urban regions and to explore mitig

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::120012ef190f24e2c8a85575b70307da
https://pure.au.dk/portal/da/publications/an-overview-of-commonly-used-methods-for-measuring-benzene-in-ambient-air(1c7be5f0-7e9d-11dd-a5a8-000ea68e967b).html

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Exposure to Indoor Air Pollution in a Reconstructed House from the Danish Iron Age

Autor: Dyveke Larsen, C.S. Christensen, Merete Essenbæk, Henrik Skov, Jes Fenger, Lasse Sørensen

Publikováno v: Skov, H, Christensen, C S, Fenger, J, Essenbæk, M, Larsen, D & Sørensen, L 2000, ' Exposure to Indoor Air Pollution in a Reconstructed House from the Danish Iron Age ', Atmospheric Environment, vol. 34, pp. 3801-3804 .
Scopus-Elsevier
Aarhus University

The adverse effects of air pollution on health have been recognised for millennia, but only in recent centuries they have been directly documented. In this paper evidence of the levels of exposure in the Danish Iron Age has been obtained from real me

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f845615cadc8b886bdf5659c452709e4
https://pure.au.dk/portal/da/publications/exposure-to-indoor-air-pollution-in-a-reconstructed-house-from-the-danish-iron-age(f25e57d0-7e9c-11dd-a5a8-000ea68e967b).html

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