Air-borne measurements of air pollutants transported from northeast Asia to
Japan and the Pacific Ocean were carried out three times from 1996 to 1999
over the seas between Japan and Asian Continent. Those campaigns were name
d PEACAMPOT II under auspices of the IGAC/APARE program. A transport patter
n of a highly polluted air mass from central China was found. Such air mass
was driven by the quick movement of low pressure traveling from Taiwan are
a to the northeast of Japan. This finding supported well the results of mod
eling studies for long-range transport of atmospheric pollutants from East
Asia.