ABSTRACT

Polychlorinated naphthalenes (PCNs) are organochlorine compounds comprising the naphthalene ring system, in which one to eight hydrogen atoms have been substituted with chlorine atoms, yielding 75 chlorinated congeners. They were considered as persistent organic pollutants in May 2015 at the Stockholm Convention owing to their toxicity, persistence, bioaccumulation and potential for long-range transport in the environment. PCNs were invented in the early 1900s to be applied as flame-retardants in consumer products. Flame-retardants are effective in minimizing fire-related problems. However, their negative environmental impacts have become of great concerns. Different analytical methods for the evaluation of PCNs in various environmental samples were reviewed in this article.. Their levels in human and some environmental samples across the globe are also mentioned. Reported data revealed that the highly toxic congeners (CNs 66, 67 and 73) are prevalent in most samples, there is need for their continuous monitoring in our environment.

摘要

多氯化萘（PCN）是包含萘环系统的有机氯化合物，其中1至8个氢原子已被氯原子取代，产生75个氯化同类物。由于它们的毒性，持久性，生物蓄积性以及在环境中的远距离迁移的潜力，它们在2015年5月的《斯德哥尔摩公约》中被视为持久性有机污染物。PCN于1900年代初发明，用作消费品的阻燃剂。阻燃剂可有效减少与火有关的问题。但是，它们对环境的负面影响已引起人们极大的关注。本文对评估各种环境样品中PCN的不同分析方法进行了综述。还提到了它们在全球人类和一些环境样本中的含量。报告数据显示，大多数样品中普遍存在高毒性同类物（CNs 66、67和73），需要在我们的环境中对其进行连续监测。