Diesel oil car is characterized by the low consumption of oil, low pollution emission and a bright future for development.

柴油车具有低油耗、排放小的特点，发展前景看好。

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China will raise the consumption tax on high-emission cars and cut tax on low-emission ones from September 1, in an effort to save energy and fight pollution.

为节能和减少污染，我国将从9月1日起提高大排量车的消费税税率，同时降低小排量车消费税税率。

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The important reason of causing our country source of water supplying insufficient and national water environment pollution in some area is low water efficiency and large sewage emission.

造成我国部分地区水源供给不足和全国水环境普遍污染的重要原因是用水效率低和污水排放量大。

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City Hall says it has taken measures to cut pollution from buses and taxis and improve the Low Emission Zone.

BBC: Nitrogen oxides