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China's central authorities have attached great importance to air pollution prevention and control. In September 2013, the State Council released the Air Pollution Prevention and Control Action Plan.
2019年，我国污染防治攻坚战取得关键进展，主要污染物排放持续下降。2019年前11个月，全国337个地级及以上城市PM2.5浓度为34 ...
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