PCDD/Fs是一类毒性很强的三环芳香族有机化合物，由2个或1个氧原子联接2个被氯取代的苯环组成，每个苯环上可以取0~4个氯原子，所以共有75个PCDD异构体和135个PCDF异构体。

ChemicalBook 致力于为化学行业用户提供聚氯二苯并对二英 (PCDD) 和聚氯二苯并呋喃 (PCDF)的性质、化学式、分子式、比重、密度,同时也包括聚氯二苯并对二英 (PCDD) 和聚氯二苯并呋喃 (PCDF)的沸点、熔点、MSDS、用途、作用、毒性、价格、生产厂家、用途、上游原料 ...

Knowledge of basic chemical and physical properties is essential to understanding and modelling environmental transport and fate as well as pharmacokinetic and toxico-logical behaviour. The most important parameters for the PCDFs appear to be water solubility, vapour pressure, and octanol/water partition coefficient (Kow).

二噁英 是多氯代二苯并二噁英 (PCDDs)和多氯代 二苯并呋喃 (PCDFs)的统称，其作为《关于持久性有机污染物 (POPs)的斯德哥尔摩公约》的首批控制对象，被称为无意排放的副产物，已引起国际的广泛关注。 公认的二噁英的形成机制主要有三种：一是材料中本身含有二噁英类污染物，并且在燃烧过程中没有被破坏，又排放到环境中；二是在200 ℃-450 ℃的环境中，吸附在飞灰粒子表面和二噁英有相似结构的前驱物（氯代芳烃等）在催化下（氯化铜为主要催化剂）被热解、分子 …

2009年6月1日 · 1,2,3,7,8-Pentachlorodibenzofuran is a polychlorinated dibenzofuran. Chlorinated dibenzofurans (CDFs) are a family of chemical that contain one to eight chlorine atoms attached to the carbon atoms of the parent chemical, dibenzofuran.

2002年11月11日 · Polychlorinated dibenzo-p-dioxins (PCDD) and polychlorinated dibenzofurans (PCDF) are environmental contaminants detectable in almost all compartments of the global ecosystem in trace amounts.

摘要: 二噁英由于持久性、高蓄积性、高毒性为人们所广为关注.它是多氯代二苯并二噁英类及多氯代呋喃类的简称 (PCDD/PCDF),共有210种同分异构体.其中毒性最强的是2,3,7,8-TCDD,动物实验表明其对天竺鼠 (guinea pig)的半致死剂量 (LD50)为1μg·kg-1,是迄今为止发现过的致癌 ...

Annex 2 Guidance on Identifying Sources of PCDD/PCDF More than 80 PCDD/PCDF sources, each with one or more emission factors, are currently listed in the Toolkit. However, new, yet unlisted sources continue to be identified. These sources attest to the variety of materials and conditions that are associated with PCDD/PCDF formation and release.

2013年6月14日 · Reversing ecosystem degradation and reducing PCDD/PCDF and PCB concentrations in the environment requires solutions based on integrative problem-solving science, such as ecological engineering and ecohydrology [117].

PCDD和PCOF已成为众多环境科学家的研究课题,正在对它们的分析方法、毒性及其环境行为和效应进行广泛而深入的研究[1]。 本文旨在对PCDD和PCDF的毒性、结构、来源、污染及职业暴露和中国状况的估计作一介绍,以引起人们的注意。 英文摘要