某些制冷剂，如含氯氟烃已被相关规列列为非法，因为这些制冷剂含有破坏臭氧层的物质。

Regulations are outlawing certain refrigerants, such as chlorofluorocarbons, which contain ozone-depleting chemicals.

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四氯化碳(CTC)是一种破坏臭氧层的物质(ods)，主要用作氟氯烃(氟里昂)的生产原料、化工过程助剂和清洗剂。

Tetrachloride carbon (CTC) is an ozone depleting substance (ODS). It is mainly used as feedstock of chlorofluorocarbons (CFC), chemical process agent and cleaning solvent.

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该研究表明，这种未受现行的保护臭氧层法规管制的气体，现在是人类活动所产生的破坏最大的臭氧层破坏物质。

The gas, which is not covered by existing regulations to protect ozone, is now the largest ozone-depleting substance produced by human activity, the research shows.

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