Phthalate Esters Pollution in Household Indoor Air Particles of Tianjin in Winter
冬季天津家庭室内空气颗粒物中邻苯二甲酸酯污染研究

To investigate the pollution of phthalate esters in household indoor air,PM10 and PM2.5 were sampled from 13 houses in Dec.2010 in Tianjin.Gas chromatograph-mass spectrometry(GC-MS) method was applied to analyze DMP,DEP,DBP,BBP,DEHP,DOP.The results showed that DMP、DEP、DBP、BBP and DEHP were detected in all samples while DOP was determined in part of samples.DBP,DEHP were the main pollutants.The ratios for the concentrations of each pollutant to PAEs in PM10 and PM2.5 were calculated.The values for DBP(13.92%-91.50%,20.88%-93.95%) and DEHP(5.56%-85.08%,5.53%-75.90%) were higher,and then came DMP,DEP,BBP and DOP.The distributions of six PAEs in different diameter air particles indicated,most PAEs were concentrated in PM2.5.Based on the questionnaire,concentrations of PAEs in indoor air particle mainly were not only affected by time and characteristics of decoration,living habit,smoking,cooking and plastic products used and so on,but also influenced by indoor cleanness and temperature.