Direct assessment of international consistency of standards for ground-level ozone: strategy and implementation toward metrological traceability network in Asia

H. Tanimoto; H. Mukai; Y. Sawa; H. Matsueda; S. Yonemura; T. Wang; S. Poon; A. Wong; G. Lee; J. Y. Jung; K. R. Kim; M. H. Lee; N. H. Lin; J. L. Wang; C. F. Ou-Yang; C. F. Wu; H. Akimoto; P. Pochanart; K. Tsuboi; H. Doi; C. Zellweger; J. Klausen

doi:10.1039/B701230F

Direct assessment of international consistency of standards for ground-level ozone: strategy and implementation toward metrological traceability network in Asia

H. Tanimoto,^ab H. Mukai,^b Y. Sawa,^c H. Matsueda,^c S. Yonemura,^d T. Wang,^e S. Poon,^e A. Wong,^e G. Lee,^f J. Y. Jung,^f K. R. Kim,^g M. H. Lee,^h N. H. Lin,ⁱ J. L. Wang,^j C. F. Ou-Yang,^j C. F. Wu,^k H. Akimoto,^l P. Pochanart,^l K. Tsuboi,^m H. Doi,^m C. Zellweger ⁿ and J. Klausen ⁿ

Author affiliations

^a Asian Environment Research Group, National Institute for Environmental Studies, 16-2 Onogawa, Tsukuba, Japan
E-mail: tanimoto@nies.go.jp
Fax: +81-29-850-2579
Tel: +81-29-850-2930

^b Center for Global Environment Research, National Institute for Environmental Studies, Tsukuba, Japan

^c Geochemical Research Department, Meteorological Research Institute, Tsukuba, Japan

^d Atmospheric Environment Division, National Institute for Agro-Environmental Sciences, Tsukuba, Japan

^e Department of Civil and Structural Engineering, The Hong Kong Polytechnic University, Hong Kong, China

^f Department of Environmental Science, Hankuk University of Foreign Studies, Yongin, Korea

^g School of Earth and Environmental Sciences, Seoul National University, Seoul, Korea

^h Department of Earth and Environmental Sciences, Korea University, Seoul, Korea

ⁱ Department of Atmospheric Sciences, National Central University, Chung-Li, Taiwan

^j Department of Chemistry, National Central University, Chung-Li, Taiwan

^k Environmental Protection Administration, Taipei, Taiwan

^l Frontier Research Center for Global Change, Japan Agency for Marine–Earth Science and Technology, Yokohama, Japan

^m Global Environment and Marine Department, Japan Meteorological Agency, Tokyo, Japan

ⁿ Laboratory for Air Pollution/Environmental Technology, Swiss Federal Laboratories for Materials Testing and Research, EMPA, Dübendorf, Switzerland

Abstract

An international exercise to directly assess consistency of standards for ground-level ozone in East Asia was conducted as part of the East Asian Regional Experiment 2005 (EAREX 2005) in the framework of the Atmospheric Brown Clouds (ABC) project. Ten organizations collaboratively participated in the intercomparison. Four groups representing Japan, Korea, Hong Kong, and Taiwan made comparisons at the Gosan super observatory, Jeju Island, Korea, in March 2005, with ozone instruments calibrated to their national standards, and four Japanese groups made off-site comparisons with laboratory-level standards. All comparisons generally indicated good agreement with the standard reference photometer (SRP) 35, built by the National Institute of Standards and Technology (USA) and maintained by the National Institute for Environmental Studies (Japan). The assessment was expanded to measurement networks contributing to the World Meteorological Organization’s Global Atmospheric Watch (WMO/GAW) program as part of off-site comparisons, and excellent agreement was achieved. These efforts contribute to propagating traceability of the national metrology standards among the atmospheric science community, to ensuring comparability of the existing ozone measurements, and to establishing an integrated network of air quality monitoring in Asia.

Graphical abstract: Direct assessment of international consistency of standards for ground-level ozone: strategy and implementation toward metrological traceability network in Asia

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Journal of Environmental Monitoring

Direct assessment of international consistency of standards for ground-level ozone: strategy and implementation toward metrological traceability network in Asia

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