Zhu Yun-Juan, Sun Dan, Yang Nuo-Er, Ding Yong-Sheng, Feng Wei-Bing, Hong Wen-Jun, Zhu Shi-Mao, Li Yi-Fan
College of Harbour, Coastal and Offshore Engineering, Hohai University, Nanjing, China.
International Joint Research Center for Persistent Toxic Substances (IJRC-PTS), Shanghai Maritime University, Shanghai, China.
Environ Sci Pollut Res Int. 2017 Apr;24(11):10885-10892. doi: 10.1007/s11356-017-8646-9. Epub 2017 Mar 14.
Atmospheric samples were collected using polyurethane foam (PUF) passive air sampling device for every 3 months from June 2012 to May 2013 in Shanghai rural regions in order to investigate the concentrations, profiles, spatial distributions, and seasonal variations of polybrominated diphenyl ethers (PBDEs). Twelve PBDE congeners (BDE-17, BDE-28, BDE-47, BDE-49, BDE-66, BDE-85, BDE-99, BDE-100, BDE-138, BDE-153, BDE-154, and BDE-183) were measured and analyzed by GC-MS. The results showed that detectable PBDEs were examined in all air samples, which indicated that these pollutants are widespread in the research areas. The ∑PBDE concentrations in Shanghai rural air ranged from 4.49 to 77.5 pg m, with mean value up to 26.7 pg m. The highest concentration was found at Jinshan sampling site in summer (from June to August in 2012). Furthermore, among the PBDE compounds investigated, the most frequently detected and the major congeners were BDE-17, BDE-28, BDE-47, and BDE-99. And the lower brominated diphenyl ethers (accounting for 75.0%) were the majority of the PBDE congeners. Finally, the result of principal component analysis (PCA) revealed that the lower and higher brominated diphenyl ethers in Shanghai rural regions were emitted from different pollutant sources.
2012年6月至2013年5月期间，每3个月使用聚氨酯泡沫（PUF）被动空气采样装置在上海农村地区采集大气样本，以调查多溴二苯醚（PBDEs）的浓度水平、同系物分布、空间分布和季节变化。通过气相色谱-质谱联用仪（GC-MS）测定并分析了12种PBDE同系物（BDE-17、BDE-28、BDE-47、BDE-49、BDE-66、BDE-85、BDE-99、BDE-100、BDE-138、BDE-153、BDE-154和BDE-183）。结果表明，在所有空气样本中均检测到了可检出的PBDEs，这表明这些污染物在研究区域广泛存在。上海农村空气中∑PBDEs浓度范围为4.49至77.5 pg/m³，平均值高达26.7 pg/m³。最高浓度出现在2012年夏季（6月至8月）的金山采样点。此外，在所研究的PBDE化合物中，最常检测到的主要同系物为BDE-17、BDE-28、BDE-47和BDE-99。低溴代二苯醚（占75.0%）是PBDE同系物的主要组成部分。最后，主成分分析（PCA）结果表明，上海农村地区的低溴代和高溴代二苯醚来自不同的污染源。
