%0 Journal Article
%T The distribution characteristics of PCDD/Fs in the atmosphere at different areas of Guangzhou City<br>广州市不同功能区大气二英含量和分布特征研究
%A SU Qing
%A REN Mingzhong
%A ZHANG Sukun
%A WAN Dajuan
%A QING Xian
%A NING Huiping
%A <br>苏青
%A 任明忠
%A 张素坤
%A 万大娟
%A 青宪
%A 宁慧平
%J 环境科学学报
%D 2012
%I 
%X In this research, seventeen kinds of atmospheric PCDD/Fs components sampled from six regions of Guangzhou City in autumn were determined using GC/HRMS. The results demonstrated that the toxic equivalent (TEQ) of PCDD/Fs were in the range of 0.151 to 2.230 pg·m-3 and an average value was 0.418 pg·m-3. Moreover, the levels of atmospheric PCDD/Fs components were associated with regional environment. The results verified that the lower and similar TEQ of PCDD/Fs were (0.294±0.099), (0.305±0.115) and (0.308±0.102) pg·m-3 in the background, residential area and commercial district, respectively. Meanwhile, the TEQ levels in transport hub area, suburban and industrial areas were higher with the values as (0.342±0.049), (0.423±0.113) and (0.838±0.704) pg·m-3, respectively. Furthermore, TEQ distribution trend in functional urban regions of Guangzhou City ranked as background < residential area < commercial district < transport hub area < suburban < industrial district. Additionally, compared with that of 2004, the average TEQ in 2011 decreased in urban area and increased in suburban area.
%K Guangzhou City
%K atmosphere
%K PCDD/Fs
%K concentration distribution<br>广州市
%K 环境空气
%K 二英
%K 含量分布
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=3FF3ABA7486768130C3FF830376F43B398E0C97F0FF2DD53&cid=A7CA601309F5FED03C078BCE383971DC&jid=03A55E61A8750ACAC6AF81EF9E2AC838&aid=25E79540CD0511ACAA3AB0BAFABA8321&yid=99E9153A83D4CB11&vid=9971A5E270697F23&iid=708DD6B15D2464E8&sid=45CB7E0782363B9E&eid=E84A2B5E13DC8191&journal_id=0253-2468&journal_name=环境科学学报&referenced_num=0&reference_num=37