International Business Times
China Strengthens Monitoring as Beijing's Air Pollution Persists
Beijing's air pollution reached eight times World Health Organization-recommended levels as smog in the city persisted for a fourth day, prompting China's environmental protection regulator to send inspection teams to the capital and surrounding areas.
Beijing Air Pollution Alert Raised To 'Orange' For First Time After Smog …
China Dispatches Pollution Inspectors Amid Bad Air
China sends government teams to investigate pollution