No, sorry

Thank you for bringing this event to our attention! I will contact the colleagues from BIRA, Belgium, maintaining SACS Aeronomie to ask accordingly,

Best wishes,

MariLiza

It is all over the news in Japan. PM25 factory/car air pollution. If you go to the NHK website, you should find an English version of the news. Some of the material is set to go over Hokkaido in the coming days and should therefore be on NHK for a couple of days.

Surprisingly enough, this SO2 plume has originated from the Etna Volcano, in Italy. The eruption on December 3rd was quite large and the SO2 plume rose as high as 7 or 8km while being constantly transported eastwards. There is no associated ash plume. Below you find an answer from Nicolas Theys, BIRA, Belgium.

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This SO2 plume is coming from Etna eruption on 3rd December : http://sacs.aeronomie.be/nrt/IasiOfl/2015/12.orb_V3/03/iasiB_dbt20151203dc_207_lr.gif

You can follow the transport of the plume on SACS day by day until it reaches China.

The eruption was one the most vigorous eruption of Etna since the last 2 decades and the SO2 plume was emitted quite high (7-8 km) in the atmosphere where it was then transported Eastward as it is often the case for Etna plumes.

Dear Gustavo,

I guess Mariliza is on target! Data are self-explanatory.

The ETNA volcano located in Sicily is the origin of the plume.

Cheers, Valerio 

Thanks a lot for your answers.  Finally I understood about SO2 emissions from Etna volcano.