幼童智力水平对交通产生的空气中微小颗粒尤为敏感，夏奇拉·弗朗哥·苏利亚及其同事如是说，她是位于波士顿的哈佛公共卫生学院成员。

Young children's minds may be especially sensitive to tiny airborne particles spewed by traffic, according to Shakira Franco Suglia of the Harvard School of Public Health in Boston and her colleagues.

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但是当石棉纤维老化断裂，很多微小颗粒能够漂浮在空气中。

But when asbestos fibers get old and break, tiny particles can drift into the air.

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难怪有玻璃颗粒微小的斑点，原来是空气中的尘埃是麻烦！

No wonder there are tiny spots of the particles of glass, originally is the dust in the air is in trouble!

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