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The average density of fine particulate matter PM2.5 in those cities rose 12.7 percent to 71 micrograms per cubic meter.
China announced on Saturday to establish the Xiongan New Area, a landmark new economic zone near Beijing designed to integrate the capital with its surrounding areas.
Stipulating the consequences of false declarations and concealment is a clear warning to officials and is crucial for the mechanism, according to the statement.
VIENNA, April 23 (Xinhua) -- China and Iran signed the first commercial contract to redesign Iran's Arak heavy water reactor in Vienna on Sunday.
China is aiming for a 10-percent reduction in air emissions from 2012 levels by 2017 in cities at the prefecture level and above. Meanwhile, the PM 2.5 density in Beijing, Tianjin and Hebei Province should drop 25 percent.
