
A ban on fireworks ahead of the Beijing Winter Olympics helped China's capital record its cleanest air for a Lunar New Year since it first started monitoring air pollutants, known as PM2.5, nine years ago.
Average concentrations of PM2.5 - small, hazardous airborne particles - stood at 5 micrograms per cubic metre in Beijing in Monday night, compared with an average of 289 micrograms for the Lunar New Year's eve in 2021.