Smog over Tiananmen
On a smoggy day, a giant screen at Tiananmen Square shows horses roaming in green pastures. According to a December 2017 Reuters analysis, based on readings of hazardous PM2.5 particles taken from the U.S. embassy in Beijing, air quality in the city improved by almost 20 percent last year. However, residents still use face masks and home air purification systems regularly, and that’s not set to change soon.
