中國北方從上周末出現的雨雪天氣在本周趨于結束，然而雨雪并未能“洗凈”大霧，霧霾天氣又“卷土重來”，部分地區交通受到影響，高速路封閉、機場航班延誤、水運航線受阻，多地空氣質量也持續“嚴重污染”。氣象部門預計，直到23日白天，中國東部大部地區仍有輕霧，但霧氣占據的時間不會太長，隨后而至的冷空氣將帶來大風降溫。
Beijing (CNS) -- Heavy smog returned to Beijing and much of northern China on Tuesday after being dispersed by a cold front over the weekend.
Most provinces and municipalities in the region, including Tianjin, Shanxi, Shandong, Hebei and Jilin, are shrouded in pollution-filled haze. Hebei has issued four red alerts for fog since Monday, while Beijing issued two yellow alerts on Tuesday.
A record-high 22 highways have been closed in Hebei, and all flights at Shijiazhuang Zhengding International Airport have been cancelled. The flight situation is much the same in Tianjin, where many ships have also been restricted at the city's port.
Air quality is rated as "severely polluted," with PM2.5 the major source, in Tianjin and eight out of eleven cities in Hebei, according to local monitoring stations.
Snowfall can only adsorb PM10 and larger particles, so it has not eased the air pollution in northern China, environmental experts said.
The China Meteorological Administration has forecast a cold front that would bring temperature drops and strong gales in the next two days.
中國北方從上周末出現的雨雪天氣在本周趨于結束，然而雨雪并未能“洗凈”大霧，霧霾天氣又“卷土重來”，部分地區交通受到影響，高速路封閉、機場航班延誤、水運航線受阻，多地空氣質量也持續“嚴重污染”。氣象部門預計，直到23日白天，中國東部大部地區仍有輕霧，但霧氣占據的時間不會太長，隨后而至的冷空氣將帶來大風降溫。
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