Pollution

Today there was a pollution warning broadcast in Japanese and English from a loudspeaker somewhere outside our apartment just now. It was spoken in really slow, stilted English, but I think it said the warning was coming from some government office or other, and it was in effect. Of course not knowing what this entailed I didn't know what to do. I just shut the windows. However, I think it was Jerry Seinfeld who said "doesn't the air in your apartment come from the air outside your apartment?" The warning was in effect too long to hold my breath though.