机构地区: 中国科学院广州地球化学研究所有机地球化学国家重点实验室
出 处: 《中国环境监测》 2007年第2期66-70,共5页
摘 要: 2004年夏季在广州四个不同区域采集大气颗粒物样品,参照美国环保局(US EPA)标准方法测定其中二噁的含量,采用热分解光学分析法测定元素碳和有机碳的含量。结果表明,花都、荔湾、天河、黄埔大气颗粒物中二噁浓度(毒性当量)平均值分别为3815fg/m3(104.6fg I-TEQ/m3)、12777fg/m3(430.5fg I-TEQ/m3)、6963fg/m3(163.7fg I-TEQ/m3)、10953fg/m3(769.3fg I-TEQ/m3)。简单地分析了广州大气颗粒物中二噁的含量特征,以及与元素碳、有机碳之间的相关性。 The atmospheric aerosol samples were collected from four districts of Guangzhou during the summer of 2004. Analyses of PCDD/Fs of samples followed the US EPA standard, and OC/EC of samples followed thermal/optical analysis. The mean PCDD/Fs concentrations (mean I-TEQ values) were 3815fg/m^3 ( 104.6fg I-TEQ/m^3 )for Huadu district, 12777fg/m^3 (430.5fg I-TEQ/m^3 ) for Liwan district, 6963fg/m^3 ( 163.7fg I-TEQ/m^3 )for Tianhe district, 10953fg/m^3 (769.3fg I-TEQ/m^3 )for Huangpu district. Character of particlebound PCDD/Fs in Guangzhou atmosphere was simply analyzed, and the correlation between PCDD/Fs and OC/EC were discussed.
领 域: [环境科学与工程]