For the past 4 days here in Seoul, we have gotten emergency alerts about how toxic the air is.
Public transportation has been free to encourage cars to get off the road and help people get to where they need to go without having to walk in the bad air.
But what is it? And what can you do about it?
Here's a video explaining the phenomenon of yellow dust as well as tips for how to avoid getting sick!
I'm from San Diego where our air is super clean except for wild fire season, so this was really shocking to me when I moved here!