It turns out, the difference between N95 and KF94 masks is minor for the factors that most users care about. KF94 is the “Korean filter” standard similar to the US N95 mask rating. Let’s dive into the differences: N95 vs KF94 . Note, there is no “N94” or “K94” mask …
Air pollution is a serious problem in Seoul, which South Koreans have often blamed China for. Is that fact or a convenient scapegoat? After all, Seoul is a densely populated, developed city that depends on coal power plants. South Korea certainly has its own sources of pollution. To get to …
This article includes supplemental data for the main article “Is China to blame for Seoul’s air pollution?” This supplemental data will show how high and low wind speeds affect the PM2.5 levels. Ultimately, this supplemental article draws the same conclusion as the main article. Does Wind Speed Affect PM2.5? …
How bad is the air pollution in Seoul, South Korea? On the one hand, Seoul is a modern, developed place, which means it shouldn’t be that bad. On the other hand, news media have reported several bad smog attacks in the last year. I wanted to get some hard numbers …
