燃煤电厂排放可吸入颗粒物中多环芳烃的分布特征

Distribution Characteristics of Polycyclic Aromatic Hydrocarbons in Inhalant Particles which Coal-fi

摘要: 分别以燃用褐煤、烟煤与无烟煤的3个电厂为例,研究3个电厂排放可吸入颗粒物中多环芳烃的分布特征.研究结果表明:燃煤电厂排放飞灰或可吸入颗粒物中所含的对人类有很大危害作用的多环芳烃化合物的种类及其含量已达到不容忽视的程度;多环芳烃的排放量与煤种有很大的关系;随着可吸入颗粒物粒径的减小,多环芳烃的含量逐渐增加.研究旨在为多环芳烃的污染防治、多环芳烃排放标准的制定等方面提供必要的依据.

Abstract: The samples were collected from three coal-powered plants where lignite,bituminous coal and anthracite were consumed respectively.Distribution characteristics of polycyclic aromatic hydrocarbons in inhalant particulate matters of coal-powered plant emissions were studied.The results showed that the type and content of polycyclic aromatic hydrocarbons in fly or inhalant particles could not be ignored.There is strong relation between the content of polycyclic aromatic hydrocarbons and coal types.With the decr...