ACTRIS non-methane hydrocarbon intercomparison experiment in Europe to support WMO GAW and EMEP observation networks

被引：27

作者：

Hoerger, C. C. ^{[1
]}

Claude, A. ^{[2
]}

Plass-Duelmer, C. ^{[2
]}

Reimann, S. ^{[1
]}

Eckart, E. ^{[3
]}

Steinbrecher, R. ^{[3
]}

Aalto, J. ^{[4
]}

Arduini, J. ^{[5
]}

Bonnaire, N. ^{[6
]}

Cape, J. N. ^{[7
]}

Colomb, A. ^{[8
]}

Connolly, R. ^{[9
]}

Diskova, J. ^{[10
]}

Dumitrean, P. ^{[11
]}

Ehlers, C. ^{[12
]}

Gros, V. ^{[6
]}

Hakola, H. ^{[13
]}

Hill, M. ^{[1
]}

Hopkins, J. R. ^{[14
]}

Jaeger, J. ^{[12
]}

Junek, R. ^{[15
]}

Kajos, M. K. ^{[16
]}

Klemp, D. ^{[12
]}

Leuchner, M. ^{[17
]}

Lewis, A. C. ^{[14
]}

Locoge, N. ^{[18
]}

Maione, M. ^{[5
]}

Martin, D. ^{[19
,20
]}

Michl, K. ^{[2
]}

Nemitz, E. ^{[7
]}

O'Doherty, S. ^{[17
]}

Ballesta, P. Perez ^{[9
]}

Ruuskanen, T. M. ^{[16
]}

Sauvage, S. ^{[18
]}

Schmidbauer, N. ^{[21
]}

Spain, T. G. ^{[19
,20
]}

Straube, E. ^{[15
]}

Vana, M. ^{[10
,22
]}

Vollmer, M. K. ^{[1
]}

Wegener, R. ^{[12
]}

Wenger, A. ^{[1
]}

机构：

[1] Swiss Fed Labs Mat Sci & Technol Empa, Dubendorf, Switzerland

[2] Deutsch Wetterdienst, Hohenpeissenberg, Germany

[3] KIT, Garmisch Partenkirchen, Germany

[4] Univ Helsinki, Dept Forest Sci, Helsinki, Finland

[5] Univ Urbino Carlo Bo, Dept Environm Sci, Urbino, Italy

[6] Lab Sci Climat & Environm, Gif Sur Yvette, France

[7] Ctr Ecol & Hydrol, Penicuik, Midlothian, Scotland

[8] Observ Phys Globe Clermont Ferrand, Aubiere, France

[9] Commiss European Communities, Joint Res Ctr, I-21020 Ispra, Italy

[10] Czech Hydrometeorol Inst, Prague, Czech Republic

[11] Ricardo AEA, Didcot, Oxon, England

[12] Forschungszentrum Julich, Inst Energy & Climate Res, Troposphere IEK 8, D-52425 Julich, Germany

[13] Finnish Meteorol Inst, FIN-00101 Helsinki, Finland

[14] Univ York, NCAS, York YO10 5DD, N Yorkshire, England

[15] Umweltbundesamt, Stn Schmucke, Gehlberg, Germany

[16] Univ Helsinki, Dept Phys, Helsinki, Finland

[17] Tech Univ Munich, Fachgebiet Okoklimatol, Freising Weihenstephan, Germany

[18] Ecole Mines Douai, Douai, France

[19] Natl Univ Ireland, Sch Phys, Galway, Ireland

[20] Natl Univ Ireland, Ctr Climate & Air Pollut Studies, Galway, Ireland

[21] Norwegian Inst Air Res NILU, Kjeller, Norway

[22] Acad Sci Czech Republ, Global Change Res Ctr, Brno, Czech Republic

来源：

ATMOSPHERIC MEASUREMENT TECHNIQUES | 2015年 / 8卷 / 07期

基金：

芬兰科学院;

关键词：

EXPERIMENT NOMHICE; OZONE PRECURSORS; RESPONSE FACTORS; AMBIENT AIR; EMISSIONS; FOCUS;

D O I：

10.5194/amt-8-2715-2015

中图分类号：

P4 [大气科学（气象学）];

学科分类号：

0706 ; 070601 ;

摘要：

The performance of 18 European institutions involved in long-term non-methane hydrocarbon (NMHC) measurements in ambient air within the framework of the Global Atmosphere Watch (GAW) and the European Monitoring and Evaluation Programme (EMEP) was assessed with respect to data quality objectives (DQOs) of ACTRIS (Aerosols, Clouds, and Trace gases Research InfraStructure Network) and GAW. Compared to previous intercomparison studies the DQOs define a novel approach to assess and ensure a high quality of the measurements. Having already been adopted by GAW, the ACTRIS DQOs are demanding with deviations to a reference value of less than 5% and a repeatability of better than 2% for NMHC mole fractions above 0.1 nmol mol(-1). The participants of the intercomparison analysed two dry gas mixtures in pressurised cylinders, a 30-component NMHC mixture in nitrogen (NMHC_N-2 /at approximately 1 nmol mol(-1) and a whole air sample (NMHC_air), following a standardised operation procedure including zero-and calibration gas measurements. Furthermore, participants had to report details on their instruments and assess their measurement uncertainties. The NMHCs were analysed either by gas chromatography-flame ionisation detection (GC-FID) or by gas chromatography-mass spectrometry (GC-MS). For the NMHC_N-2 measurements, 62% of the reported values were within the 5% deviation class corresponding to the ACTRIS DQOs. For NMHC_air, generally more frequent and larger deviations to the assigned values were observed, with 50% of the reported values within the 5% deviation class. Important contributors to the poorer performance in NMHC_air compared to NMHC_N-2 were a more complex matrix and a larger span of NMHC mole fractions (0.03-2.5 nmol mol(-1)). The performance of the participating laboratories were affected by the different measurement procedures such as the usage of a two-step vs. a one-step calibration, breakthroughs of C-2-C-3 hydrocarbons in the focussing trap, blank values in zero-gas measurements (especially for those systems using a Nafion (R) Dryer), adsorptive losses of aromatic compounds, and insufficient chromatographic separation.

引用

页码：2715 / 2736

页数：22

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