环境化学报告之多环芳烃和二噁英（英文）.ppt

Two Electrophilic active region * 物理法： 微波法 混凝沉降 化学法： 光催化氧化 超临界水氧化 生物法： 微生物降解 植物修复 * 施普林格出版社 柏林海德堡 2003年 出版的 环境化学手册的第三卷 第O部分 持久性有机污染物 第六章 * contaminated locations measured concentrations range from several hundred to around 100,000 ng I-TEQ/kg d.m. The highest concentrations were found in Finland at sites contaminated with wood preservatives and the Netherlands close to a scrap car and scrap wire incinerator * the concentrations in ambient air range from 1 to several hundred fg I-TEQ/m3 and in deposition, a similar range was found for the concentrations in pg TEQ/m2·d 14800 pg TEQ/m2·d measured in 1992/93 at the Pontyfelin House site, in the Panteg area of Pontypool in South Wales, which is very close (~150 m) to an industrial waste incinerator * * Chloracne 氯痤疮  * 生殖 神经 免疫 致癌 内分泌 毒性 * 鱼 肉类 蛋 贝类 牛奶 中含量较高 * * The importance of refuse sorting * 环境化学课程报告 Report for Environmental Chemistry Designed by Hao Wang Pei Wang 制作：王昊、王沛 --Introduction of PAHs and Dioxins Glimpse of the two chemicals PAHs, abbreviation of “Polycyclic aromatic hydrocarbons”, are potent atmospheric pollutants that consist of fused?aromatic?rings?and do not contain?heteroatoms?or carry substituents.[1] Dioxins refer to polychlorinated dibenzo-p-dioxin(PCDDs) and polychlorinated dibenzofuran (PCDFs). [1] /wiki/Polycyclic_aromatic_hydrocarbon On PAHs--Source Volcanic activity Source: Natural fire Biosynthesis Natural source Anthropogenic source Fossil fuels’ burning Incomplete combustion of other substances containing hydrocarbons Main source Incense Tobacco Fired food On PAHs 16 US EPA priority PAHs naphthalene acenaphthylene fluorene acenaphthene phenanthrene anthracene fluoranthene pyrene chrysene benzo[a]anthracene dibenzo[a,h]anthrancene benzo[k]fluoranthene benzo[b]fluoranthene benzo[a]pyrene indeno[1,2,3-cd]pyrene benzo[g,h,i]perylene probable human carcinogens On PAHs--Environmental level [2] Jian-Hui Sun et al. Distribution of polycyclic aromatic hydrocarbons