For the past five years, the U.K. exceeded the EU's air-pollution limits; London surpassed its yearly pollution limit in the first week of 2016.

在过去的五年里，英国超过了欧盟的空气污染限制，伦敦在2016年的第一周就超过了它的年度污染限额。

Coal from the Powder River Basin of Montana and Wyoming tends to be low in sulfur, for example, allowing power plants to burn more without exceeding local pollution limits.

来自蒙大拿粉河盆地和怀俄明州的煤炭含硫量低，可保证发电厂不超出本地排污限制。

Audi, one of the divisions of Volkswagen, announced that it will spend 50 million euros upgrading software of US-sold diesel cars that regulators believe flout US pollution limits.

奥迪公司23日表示，将耗资5000万欧元改造汽车中安装的排放测试软件。美国监管部门认为，美国市场的大批柴油车存在实际排放和产品规格不相符的现象。