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02-21-2016, 08:01 PM
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Beijing to raise threshold for issuing air pollution ?red alerts?
Beijing to raise threshold for issuing air pollution ?red alerts?
BEIJING (Reuters) - Beijing is to raise the thresholds for issuing its highest air pollution warnings, the state news agency Xinhua reported on Sunday, two months after acrid smog triggered the city's first ever "red alerts".  ??????? ??????: Beijing to raise threshold for issuing air pollution ?red alerts? || ??????: ahlam1399 || ??????: اسم منتداك
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العرض الشجري