The Pollution Characteristics Analysis of Benzene Series in a Newly Decorated Office Building

In order to study the pollution characteristics of benzene series in a newly decorated office building, the method of active carbon absorption sampling combined with gas chromatographic analysis was used in monitoring the concentrations changes of benzene series in four typical zones in a newly decorated office building in Tianjin. The laws of benzene series concentrations changes and impacted factors were summarized, that is, the concentrations of three main kinds of benzene series in the decorated office building were higher than the allowed values of national standard just after decoration and then began to reduce with time. Through studies, we found that toluene could cause more serious pollution among benzene series on indoor air and natural ventilation was the most effective and economical method in reducing the benzene series concentrations in buildings.