Researchers compiled a composite indexof "water threats" that includes issues such as scarcity and pollution.
研究人员编制了“水威胁”综合指数,其中包括水短缺和污染之类的问题。
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The pollutionindex topped 100 at all three of the city’s roadside monitoring stations today, as it has every day since Dec. 20.
今天市区所有三个路边监测站的污染指数均已超过了100,从12月20日以来天天如此。
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Air pollution in Beijing reached a high level of 99 on the Air pollutionIndex on Friday as a sandstorm from the northwest shrouded the capital in dust, the China News Service reported.