Gravimetric determination of particle size distribution characteristics of particulate matter produced by incense combustion in Fujian,Guangdong and Tibet
It is crucial to research the particle size distribution of particulate matter created by incense after burning in vari-ous places since it is dangerous for human health when particulate matter with a particle size of smaller than 10 µm is formed by combustion.In order to create the collecting method for nine particle-size segments of particulate matter pro-duced following incense combustion,the gravimetric approach was utilized in this work and the settings for membrane,sam-ple quality,and sampling time were optimized.The limit of detection of this method was 0.0276 mg/m3,the lower limit of de-termination was 0.1105 mg/m3,and the relative standard deviation was 2.46%-12.26%.The investigation of particulate mat-ter produced by the combustion of nine different types of incense in the three regions of Fujian,Guangdong,and Tibet re-vealed that the particle size distribution characteristics of the particles produced by the combustion of the nine incense were relatively consistent,and all of them showed a unimodal distribution,mainly concentrated in the range of 0.65-1.1µm and 0.43-0.65µm.PM1.1 accounted for more than 70%in PM2.1,PM2.1 accounted for more than 90%in PM10.The emission fac-tors of PM1.1,PM2.1,and PM10 were 10.597-29.251 mg/g,11.741-39.568 mg/g and 12.439-43.467 mg/g.
万方数据
维普
