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quan min wei jiao pm2 5
Author(s): 
Pages: 40-45
Year: Issue:  3
Journal: The Second Class of Guangdong

Abstract: PM2.5是指直径小于或等于2.5微米的颗粒物,也叫超细灰尘。与较大的空气颗粒物相比,PM2.5粒径小,富含大量有毒、有害物质,并且在大气中停留的时间更长、输送的距离更远,最远的传送距离有2000公里,因而对人体健康和大气环境质量的负面影响非常大。
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