BEIJING: China has ordered thousands of factories to shut as it grappled with choking smog that was nearly 24 times safe levels on Tuesday, casting a shadow over the country’s participation in Paris climate talks.
A thick gray haze shrouded Beijing, with the concentration of PM 2.5, harmful microscopic particles that penetrate deep into the lungs, climbing as high as 598 micrograms per cubic meter.
The reading, given by the US embassy, dwarfs the maximum recommended by the World Health Organization, which is just 25 micrograms per cubic meter.
Levels in Jinan, a provincial capital hundreds of kilometers away, reached over 400.
Authorities in Beijing ordered the closure of 2,100 highly polluting businesses, the state-run China Daily said, and advised citizens to stay indoors.
Airlines canceled over 30 flights from Beijing and Shanghai, many to highly polluted Shaanxi Province, a key coal producer.
The environmental woes came after Chinese President Xi Jinping took the stage at crucial international talks aiming to limit dangerous climate change.
He vowed “action” on greenhouse emissions, repeating existing pledges and telling the summit that poor nations should not have to sacrifice economic growth.
Most emissions come from coal burning which spikes in winter along with demand for heating, which also causes smog.
China is estimated to have released between nine and 10 billion tons of carbon dioxide in 2013, nearly twice as much as the United States and around two and a half times the European Union.
Beijing pledged last year that carbon dioxide output would peak by “around 2030” — suggesting at least another decade of growing emissions.
Social media users in China were skeptical about the chances of a clean up, with many circulating a picture of a Beijing newspaper front page from 1999.
It cited officials as proclaiming: “We absolutely will not let big pollution enter the new century.”