Osaka Prefectural Institute of Public Health, 1-3-69, Nakamichi, Higashinari-ku, Osaka, 537-0025, Japan.
Institute of Medical, Pharmaceutical and Health Sciences, Kanazawa University, Kakuma-machi, Kanazawa, Ishikawa, 920-1192, Japan.
Environ Sci Pollut Res Int. 2015 Oct;22(19):14600-5. doi: 10.1007/s11356-014-2861-4. Epub 2014 Apr 16.
Atmospheric particles were collected in several cities in Japan (Sapporo, Sagamihara, Kanazawa, and Kitakyushu), Korea (Busan), and China (Beijing) using a high-volume air sampler equipped with a quartz fiber filter. The summer and winter samples were analyzed using gas chromatography-high-resolution mass spectrometry for Dechlorane Plus (DP). Decabromodiphenyl ether (BDE-209) was also analyzed for the samples from Kanazawa and Beijing. DP was detected in all samples. The mean total DP (ΣDP) concentration was highest (6.7 pg/m(3)) and lowest (0.87 pg/m(3)) in the winter samples from Sagamihara and Busan, respectively. The seasonal variation of DP concentrations varied by sampling site in this study. BDE-209 was detected in all the analyzed samples except for one of the Kanazawa winter samples. BDE-209 concentration was considerably higher in Beijing than in Kanazawa. Significant correlations were found between the concentrations of ΣDP and BDE-209 in the winter samples from Kanazawa and in both summer and winter samples from Beijing. This similarity in the atmospheric behavior of DP and BDE-209, especially in winter, is assumed to reflect a common end usage and release mechanism.
采用配备有石英纤维滤膜的大流量空气采样器，在日本（札幌、相模原、金泽和北九州）、韩国（釜山）和中国（北京）的几个城市收集大气颗粒物。使用气相色谱-高分辨率质谱法对夏季和冬季样品进行分析，以检测出十氯酮（DP）。还对金泽和北京的样品进行了分析，以检测出十溴二苯醚（BDE-209）。所有样品中均检测到 DP。相模原和釜山冬季样品中总 DP（ΣDP）浓度最高（6.7 pg/m3）和最低（0.87 pg/m3）。本研究中 DP 浓度的季节性变化因采样地点而异。除了一个金泽冬季样品外，所有分析的样品中均检测到 BDE-209。北京的 BDE-209 浓度明显高于金泽。在金泽冬季样品和北京夏季和冬季样品中，均发现 ΣDP 和 BDE-209 浓度之间存在显著相关性。DP 和 BDE-209 在大气中的行为相似，尤其是在冬季，这被认为反映了它们具有共同的最终用途和释放机制。
