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《Journal of Taiyuan Normal University(Natural Science Edition)》 2011-01
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Analysis of Indoor Air Quality in Public Places Investigations

Zhen Shili(Environmental Monitoring Station of Datong,Datong 037006,China)  
Objective to understand the part public indoor air quality in Datong,during late 2008 to early 2010,we monitored and analyzed quarterly six indoor indexes(CO,ammonia,formaldehyde,benzene,toluene,xylene).Result 1.Except ammonia and formaldehyde,co benzene,toluene and xylene are not exceeded,the pass rate of ammonia and formaldehyde were 81% and 94%,the phenomenon that ammonia exceeds standard limit exists generally,the lowest rate of pass occurred in large supermarket(72%),and large hotels were serious than the others.Result 2.Statistical analysis yearly found that ammonia and formaldehyde exceeds standard limit,mainly concentrated in the third quarter.Conclusion Major pollutants in 4 kinds of public places were ammonia and formaldehyde,temperature and humidity and the release of ammonia and formaldehyde are relevant;pollution in indoor air mainly comes from building and decoration materials,etc.
【CateGory Index】: X51
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