北京28日晨再遭霧霾迷城，氣象臺發布大霧和霾黃色預警，一些地區道路能見度不足200米，這是新年以來北京第四次遭遇霧霾，受其影響，北京空氣質量再度降至嚴重污染級別。
Beijing (CNS) -- Persistent smog in central and eastern China is disrupting the Spring Festival travel rush in the region.
A number of highways have been closed in central China's Henan province and 372 flights have been delayed at Zhengzhou Airport.
Low visibility caused the closure of the Qingdao Liuting Airport in Shandong Province on Tuesday morning, reports said. Some of the area's highways have also been closed because of heavy fog.
China's national meteorological authorities issued a blue alert for heavy fog in the central and eastern parts of the country on Sunday.
The fog will persist in the region until Wednesday, the authorities said.
北京28日晨再遭霧霾迷城，氣象臺發布大霧和霾黃色預警，一些地區道路能見度不足200米，這是新年以來北京第四次遭遇霧霾，受其影響，北京空氣質量再度降至嚴重污染級別。
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