杭州市办公场所室内空气中PBDEs的污染现状与特征

Pollution Status and Characteristics of PBDEs in Indoor Air of Hangzhou

分析评价了杭州市办公场所中PBDEs的污染现状、污染特征．结果表明，办公场所中PBDEs气相和颗粒相总浓度范围为40．66～141．00Pg·m^-2，平均浓度为93．22Pg·m^-2，是家庭室内、室外浓度的1．87、5．01倍．BDE-47、BDE-99为办公场所中最重要的两种同系物，分别占总浓度的33．29％、31．99％．PBDEs气相浓度是颗粒相的1．34倍，其中BDE-28、BDE-47、BDE-99主要存在于气相中，BDE-153、BDE-183主要存在于颗粒相中．

Pollution Status and characteristics of PBDEs in offices were investigated in Hangzhou. As a result, the total concentration of PBDEs was 40. 66-141.00 pg.m-3 , and the mean concentration was 93.22 pg.m-3 , being 1.87 and 5.01 times as high as those in homes and outdoor. In particle and gas phases, BDE-47 and BDE-99 were the most abundant congeners, which accounted for 33.29% and 31.99% of total PBDEs, respectively. Concentration of PBDEs in gas phase was 1.34 times as high as that in particle phase. BDE-28, BDE-47 and BDE-99 mainly existed in the gas phase, while BDE-153 and BDE-183 mainly existed in the particle phase.