Residents of Beijing, China, have had it worse than Los Angelenos do when it comes to dealing with smog. Images from this major city are often full of members of the public wandering the streets with gas masks over their faces.
The 2008 Olympics were a positive step for the city, and to appeal to the world audience and dignitaries, China took many emergency measures to clean the air in and around the city. This improvement lasted for a short time after the games, but it seems the city has since taken a turn for the worse, as smog became so heavy recently that Beijing's International Airport had to cancel and ground hundreds of flights until the smog cleared four days later.
U.S. pollution measurements are measured on a scale of 500, where the higher number indicates the worst air quality. During the worst part of the smog issue, readings in Beijing were literally greater than the index allowed for.
Though the smog has lifted and the air is now listed at a moderate rating, if you or someone you know plans to make an extended trip to Beijing anytime soon, it may be a good idea to send them with an IQAir HealthPro Plus air purifier to protect their health during their travels.