懸浮微粒

particulates / particulate matter

to hang or suspend / to worry / public announcement / unresolved / baseless / without foundation

to float (in the air etc) / suspension

to float / superficial / floating / unstable / movable / provisional / temporary / transient / impetuous / hollow / inflated / to exceed / superfluous / excessive / surplus

surname Wei / ancient Chinese state near present day Chongqing / Taiwan pr. [Wei2]

tiny / miniature / slightly / profound / abtruse / to decline / one millionth part of / micro- / Taiwan pr. [wei2]

speck / particle

grain / granule / classifier for small round things (peas, bullets, peanuts, pills, grains etc)