Northern China is braced for more days of hazardous air quality following a week of toxic smog in Beijing that has consistently averaged more than 16 times the World Health Organisation’s recommended upper limit.
manbetx3.0 北方在今后几天将继续面对有害的空气质量。此前，有毒雾霾持续笼罩北京已有一周，污染物含量平均为世界卫生组织(WHO)建议上限的逾16倍。
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