sulphur dioxide

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A court has ordered the refinery to cut its sulphur-dioxide emissions or face heavy fines.
法庭发出裁决，责成该炼油厂要么削减其二氧化硫排放量，要么支付沉重的罚单。
By 2014 these states’ sulphur-dioxide emissions must be 27% of what they were in 2005, while nitrogen-oxide levels must fall to 46% of their 2005 levels.
到2014年，细则划定范围内所在各州的二氧化硫排放量和空气中氮氧化合物含量必须比2005年相比，分别下降至27%和46%。
But thanks to new technologies, new laws and new desires for cleaner air, the trend reversed, and sulphur-dioxide pollution declined even though population and wealth kept rising.
但是借助新技术、新法规以及对洁净空气的渴望，排放增加的趋势被扭转了。即使在人口和财富不断增加，二氧化硫污染也在下降。

America has had great success cutting sulphur-dioxide emissions, which are a precursor to acid rain, through a domestic trading scheme that may be a good model for any Kyoto-inspired carbon trading.
ECONOMIST: Hotting up in The Hague
Mr Sandor helped design the sulphur-dioxide emissions exchange.
ECONOMIST: A new approach to global warming
America was heavily involved in the design of the Kyoto protocol, and insisted that it should include the possibility of a market in emissions credits, on the ground that its trading scheme to reduce sulphur-dioxide emissions had been a big success.
ECONOMIST: Selling hot air

a gas that has a strong, unpleasant smell and dissolves in water. It is used in various industrial processes, and can cause air pollution.

a colourless soluble pungent gas produced by burning sulphur. It is both an oxidizing and a reducing agent and is used in the manufacture of sulphuric acid, the preservation of a wide range of foodstuffs (E220), bleaching, and disinfecting. Formula: SO2 (Systematic name sulphur(IV) oxide)

二氧化硫
Through desulfurization treatment for the key sources of pollution coal-fired boilers, which can effectively reduce the Tanggu District Environmental concentrations of sulphur dioxide in the air.
通过对重点燃煤锅炉污染源进行脱硫治理,可有效降低塘沽区环境空气中二氧化硫浓度。
化学
二氧化硫
两氧化硫