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

该过滤器还筛选出危害人类健康的颗物。

This includes increased monitoring of particulate matter in the air.

包括监测空气中的悬浮颗物等。

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

它敦促采取更多行动损害肺部的颗物。

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

但该县卫生主任克里斯汀·斯廷森表示，悬浮颗物是一个令人担忧的问题。

Particulate matter comes in various sizes.

颗物有各种大小。

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

该指的主要测量指标之一是“颗物 2.5”。

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

常见的燃烧产物包括碳氢化合物、氮和硫的氧化物、氨和颗物。

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

丛林大火会产生颗物污染，颗物是空气中的微小颗，进入肺部。

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

大多科学家都一致表示，客观讲，颗物标准就如同限速标准。

In parts of the capital levels of fine particulate matter reached 30 times the limit deemed safe.

在首都的某些地方，大气细颗物的含量达到了最低安全指标的30倍。

Pollutants and small particulate matter landing on your plants can block sunlight, which is essential for photosynthesis.

污染物和小颗物质落在植物上会阻挡阳光，而阳光对光合作用至关重要。

On Tuesday, the air quality index came close to the level of 400 for tiny particulate matter.

周二，该市的空气质量指（每立方米空气中微小颗物含量）接近400。

Fine particulate matters are so tiny that when inhaled, they go through your lungs and can enter the bloodstream.

细颗物非常微小，当吸入时，它们会穿过肺部进入血流。

Particulate matter is made up of a number of parts, including acids, organic chemicals, metals, and soil or dust.

颗物由若干部分组成，包括酸性物质、有机化学品、金属、土壤和灰尘。

The WHO study finds a reduction in air pollutants could lessen deaths from particulate matter by 15 percent.

世界卫生组织研究发现，空气污染物使因颗物污染造成的死亡率降低15%。

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

颗物也称颗物污染，是一种微小的固体和液体混合物。

The substance is known as particulate matter, a mixture of small, solid particles and water droplets found in the air.

这种物质被称为颗物，是空气中发现的小固体颗和水滴的混合物。

The air inside virtually every house contains some fine particulate matter, coming from sources such as mold and cooking smoke.

事实上，每家每户的空气中都含有一些自霉菌和炊烟等源的细颗物。

They also face pollution from particulate matter, like vehicle exhaust or wildfire smoke, which can enter classrooms from the outside.

他们还面临着自颗物的污染，比如汽车尾气或野火产生的烟雾，这些颗物能会从室外进入教室。

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

降低细颗物的水平。