Xu Meng-Xia, Yan Jian-Hua, Lu Sheng-Yong, Li Xiao-Dong, Chen Tong, Ni Ming-Jiang, Dai Hui-Fen, Wang Fei, Cen Ke-Fa
State Key Laboratory of Clean Energy Utilization, Institute for Thermal Power Engineering, Zhejiang University, Hangzhou 310027, China.
Environ Sci Technol. 2009 Feb 15;43(4):1023-9. doi: 10.1021/es802183b.
Ambient air monitoring of polychlorinated dibenzo-p-dioxins and dibenzofurans (PCDD/Fs) was performed to investigate their concentrations, profiles, and sources near a municipal solid waste incinerator (MSWI) in Eastern China. The PCDD/F concentrations varied over a factor of 51.4 from 0.059 to 3.03 pg I-TEQ m(-3) (or over 41.4 from 3.96 to 164 pg m(-3)) and fell at the higher end of the range in recorded peer investigations around the world. Almost all ambient air samples show a unique TCDF-dominanthomologue pattern, characterized by decreasing concentrations with increasing levels of chlorination (except for OCDD). By contrast, the dominant congener in terms of concentration profiles shows temporal and spatial variations among the OCDD, OCDF, and 1,2,3,4,6,7,8-HpCDF. The results from a congener-specific factor analysis between ambient air and PCDD/F emission sources, as well as U.S. EPA Chemical Mass Balance (CMB8.2) and Industrial Source Complex Short Term Version 3 (ISCST3) modeling, suggest that the deterioration of air quality in the study area is primarily attributed to open burning of wastes (OB), followed by hot water boilers (HWBs), traffic, and the MSWI.
对中国东部某城市固体废弃物焚烧炉（MSWI）附近的多氯代二苯并 - 对 - 二噁英和二苯并呋喃（PCDD/Fs）进行了环境空气监测，以调查其浓度、分布特征和来源。PCDD/Fs的浓度变化范围为51.4倍，从0.059至3.03 pg I-TEQ m(-3)（或41.4倍，从3.96至164 pg m(-3)），处于全球已记录的同类调查范围的较高端。几乎所有环境空气样本都呈现出独特的以TCDF为主导的同系物模式，其特征是随着氯化程度的增加浓度降低（八氯二苯并二噁英除外）。相比之下，就浓度分布而言，主要同系物在八氯二苯并二噁英、八氯二苯并呋喃和1,2,3,4,6,7,8 - 七氯代二苯并呋喃之间呈现出时间和空间变化。环境空气与PCDD/Fs排放源之间的特定同系物因子分析结果，以及美国环境保护局化学质量平衡（CMB8.2）和工业源综合短期版本3（ISCST3）模型的结果表明，研究区域空气质量的恶化主要归因于废物露天焚烧（OB），其次是热水锅炉（HWB）、交通和城市固体废弃物焚烧炉。
