Intercontinental dust drift approaching from North in Yokohama 2013-03-10 around 14:00.
We closed all windows shut and stopped the 24h ventilation fan. Do you know where the switches are in your home?
Days where visibility drops like this happen once or twice in a bad year, when winds sweep the smog from the nearby continent. Here the 2008 event
Public Air Quality StationsRelated peak PM 2.5 measurement in the Kanagawa area today: 95ug/m3, health advisory limit 35ug/m3 (not indicated on that site). Note the ad for a face mask fitting the concern of the site visitor. Site http://2chmail.net/k was overloaded around 15:00 from too may visits. Tokyo site is http://2chmail.net/t, more: PM2.5観測値速報, here a daily overview
Early warning possibleAerosol pollution animated forceast SPRINTARS by Kyushu University was pretty accurate on this one. No health advisory noticed here. Citizen, be vigilant and check for yourself.
Let's make the Sky so Blue again