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

空气质量监测括颗粒、地面臭氧、二氧化硫、二氧化氮、一氧化碳和铅六种污染。

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。

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

常见的燃烧括碳氢化合、氮和硫的氧化、氨和颗粒。

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。

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，悬浮颗粒是一个令人担忧的问题。

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 2.5”。

Since 3 November, the air quality index (AQI) — a measure of eight pollutants, including fine particulate matter, ozone and sulfur dioxide — in Delhi has remained consistently above 99. Anything above 150 is classified as unhealthy.

自 11 月 3 日以来，德里的空气质量指数（AQI）一直保持在 99 以上，该指数是对细颗粒、臭氧和二氧化硫等八种污染的衡量。

In the past two weeks, there have been over 400 wildfires in Canada, nearly 250 of which that are still uncontrolled, which means they are dispersing a lot of fine particulate matter into the air.

在过去的两周里，加拿大发生了 400 多起，中近 250 起仍未得到控制，也就是说，这些大正在向空中扩散大量细颗粒。

Mr. Wehrum said the analyses the agency is conducting " illuminate the issue" of particulate matter and the question of what level is acceptable for the purposes of policymaking.

韦鲁姆说，该机构正在进行的分析“阐明了”颗粒问题，也阐明了制定政策时怎样的水平才能被接受的问题。

And the truth is, yes, some particulate matter does come from electric stoves, but they're not combusting methane, which means you're not getting products like nitrogen dioxide.

事实上，是的，电灶确实会释放一些颗粒，但它们并不燃烧甲烷，这意味着不会有像二氧化氮这样的。

Particulate matter can end up deep in the lungs and cause heart attacks, strokes and asthma, he said, adding that the risk is particularly acute in urban areas.

他说，微粒质最终会被吸入肺部，导致心脏病发作、中风和哮喘，城市地区居民面临的风险尤严重。

Diesel engines, on the other hand, produce more Nitrogen Oxide and fine particulate matter in the form of soot, which is characterized by heavy black deposits.

另一方面，柴油发动机以烟灰的形式生更多的氮氧化和细颗粒，特征是大量的黑色沉积。

And there are some studies already showing that the very small particulate matter can go directly into the brain affecting office workers.

一些研究已经证明，这种极小的颗粒质可以直接进入大脑，影响办公室工作人员。

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

这种质被称为颗粒，是空气中发现的小固体颗粒和水滴的混合。

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

事实上，每家每户的空气中都含有一些来自霉菌和炊烟等来源的细颗粒。

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粒的污染，比如汽车尾气或生的烟雾，这些颗粒可能会从室外进入教室。

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粒污染造成的死亡率降低15%。

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，大气细颗粒的含量达到了最低安全指标的30倍。

We have super sophisticated air handling systems that prevent any smoke or particulate matter from getting in.

我们拥有超精密空气处理系统，能完全阻隔烟雾和颗粒进入。

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

污染和小颗粒质落在植上会阻挡阳光，而阳光对光合作用至关重要。