所有这些微粒与气体不但造成了全球变暖，其中有一些还是危险得能引发呼吸系统疾病的空气污染物。
All of these particles and gases contribute to global warming and some are dangerous air pollutants that can lead to respiratory disease.
现在最迫切的工作是减少柴油车辆废气中的微粒，因为这会造成空气污染，直接危害市民的健康。
The most pressing issue is to reduce air pollution from particulates in diesel vehicle emissions, as this is a direct present threat to our health.
空气污染，化学品的释放到大气中的微粒。
Air pollution, the release of chemicals and particulates into the atmosphere.
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