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We performed continuous measurements of O 3 and CO at Cape Hedo (26.8°N, 128.2°E, 60m above sea level), a remote measurement site on Okinawa Island in Japan, in order to investigate the long-range transportation of air pollution from highly polluted regions in East Asia. The O 3 and CO concentrations, from January 2002 to May 2004, show maximum values during the winter–spring period...
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