Comparative analysis of air quality indexes between the year of 2006 and 2007 of Tieling is conducted including air quality comprehensive pollution index and PM10 and SO2 and NO2 and fall dust.

对铁岭市2006年和2007年的环境空气质量进行对比分析，其中包括大气质量综合污染指数、可吸入颗粒物、二氧化硫和二氧化氮、降尘等指标的统计分析。

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If you fall, dust it off. Don't let up.

如果你跌倒了，掸掉身上的灰尘，不要放松。

youdao

They fall off the plastic objects and are moved by the wind, just like dust.

它们就像灰尘一样从塑料物体上脱落，被风吹走。

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Somehow the dust continues to fall: Met-Mex employees can be seen on vacuuming errands in many neighbourhoods of the city.

ECONOMIST: Lead pollution has caused a lasting public-health blight

She also has environmental allergies to molds, dust mites, certain fall pollens and certain trees.

CNN: Take it from a girl who cannot eat, a feeding tube is no fad

Radioactive isotopes accumulate in milk after they spread through the atmosphere, fall to earth in rain or dust, and settle on vegetation, where they are ingested by grazing cattle.

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