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颗。

This includes increased monitoring of particulate matter in the air.

包括监测空气中悬浮颗等。

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

常见燃烧产包括碳氢化合、氮和硫氧化、氨和颗。

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颗。

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，悬浮颗一个令人担忧问题。

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

该指数主要测量指标之一“颗 2.5”。

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

丛林大火会产生颗污染，颗空气中微小颗，可以进入肺部。

Particulate matter comes in various sizes.

颗有各种大小。

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

大多数科家都一致表示，客观来讲，颗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.

在首都某些地方，大气细颗含量达到了最低安全指标30倍。

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

污染和小颗质落在植上会阻挡阳光，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，该市空气质量指数（每立方米空气中微小颗含量）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.

颗由若干部分组成，包括酸性质、有机化品、金属、土壤和灰尘。

Air quality is monitored for six pollutants: particulate matter, ground-level ozone, sulfur dioxide, nitrogen dioxide, carbon monoxide and lead.

空气质量监测包括颗、地面臭氧、二氧化硫、二氧化氮、一氧化碳和铅六种污染。

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，空气污染减少可以使因颗污染造成死亡率降低15%。

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

这种质被称为颗，空气中发现小固体颗和水滴混合。

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

事实上，每家每户空气中都含有一些来自霉菌和炊烟等来源细颗。

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

颗也称颗污染，一种微小固体和液体混合。

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

他们还面临着来自颗污染，比如汽车尾气或野火产生烟雾，这些颗可能会从室外进入教室。