Tag: PM 2.5

Harbin China Smog

Big News

The ¬†Wall Street Journal reported this week that Harbin, a city in the northeastern province of Heilongjiang in China, is covered in such dense smog that several airports and highways, as well as many schools, have been closed. People in Harbin are wearing masks to protect themselves from PM 2.5 particulates in the air. The […]