This includes increased monitoring of particulate matter in the air.

包括监测空气中的悬浮颗粒物等。

Particulate matter comes in various sizes.

颗粒物有各种大小。

Bush fires produce particulate matter pollution, which are airborne particles small enough to enter the lungs.

丛林大火会颗粒物污染，颗粒物是空气中的微小颗粒，可以进入肺部。

Which would also screen out particulate matter dangerous to human health.

该过滤器还可以筛选出危害人类健康的颗粒物。

We block over 99 of particulate of the same size.

我们阻挡了九十九多个相同大小的颗粒物。

It urged more action to reduce particulate matter that damages lungs.

它敦促采取更多行动来减少损害肺部的颗粒物。

These particles can travel deep inside human lungs and are mostly created by burning fuels.

这些颗粒物可以深入人体肺部，主要由燃烧燃料。

The new research shows that multiple drops travel in a cloud.

这项新的研究显示呈云雾状轨迹的众多颗粒物。

And one of the primary measurements for the Index is particulate matter 2.5.

该指数的主要测量指标之一是“颗粒物 2.5”。

" Particulate matter, " also known as particle pollution, is a complex mixture of extremely small particles and liquid droplets.

颗粒物也称颗粒物污染，是一种微小的固体和液体混物。

The PM2.5 measurement means the particles are 2.5 microns or less in diameter.

PM2.5的测量的意思是颗粒物的直径小于或等于2.5微米。

Larger particles, known as PM 10, are linked to agriculture, roadways, mining or wind-blown dust.

较大的颗粒物（称为PM 10）与农业、道路、采矿或风扬尘有关。

IQAir measures air pollution based on the presence of airborne particles that damage the lungs.

IQAir根据空气中含有的对肺部有害的颗粒物的浓度来测量空气污染水平。

The Obama plan would also have what is known as a co-benefit: levels of fine particulate matter would fall.

降低细颗粒物的水平。

Common combustion products include hydrocarbons, oxides of nitrogen and sulfur, ammonia and particulate matter.

常见的燃烧物包括碳氢化物、氮和硫的氧化物、氨和颗粒物。

But County Health Director Christine Stinson says particulate matter is a concern.

但该县卫主任克里斯汀·斯廷森表示，悬浮颗粒物是一个令人担忧的问题。

Heavier particles drop out first, but about five times further out than had been previously predicted.

较重的颗粒物最先下落，但仍然比之前预测到的距离远5倍以上。

The particles are what stand between iron coming out of the glaciers and the Southern Ocean.

这些颗粒物阻碍了从冰川中释放出来的铁抵达南大洋。

She explained that particles that go into the air when people breathe will have room to spread out.

她解释说，人们呼吸时进入空气的颗粒物将会有扩散的空间。

To put the matter in perspective, most scientists say particulate matter standards are like speed limits.

大多数学家都一致表示，客观来讲，颗粒物标准就如同限速标准。