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单词 PCDD
释义

PCDD

英语百科

Polychlorinated dibenzodioxins

(重定向自PCDD)
The skeletal formula and substituent numbering scheme of the parent compound dibenzo-1,4-dioxin
Concentration profile of PCDD in a dated sediment core from Esthwaite Water, Cumbria, UK.
A chart illustrating how much dioxin the average American consumes per day. (Note: pg = picogram, or one trillionth of a gram, or 10−12 g) .[18]
Space-filling model of 2,3,7,8-tetrachlorodibenzodioxin.

Polychlorinated dibenzodioxins (PCDDs), or simply dioxins, are a group of polyhalogenated organic compounds that are significant environmental pollutants.

They are commonly but inaccurately referred to as dioxins for simplicity, because every PCDD molecule contains a dibenzo-1,4-dioxin skeletal structure, with 1,4-dioxin as the central ring. Members of the PCDD family bioaccumulate in humans and wildlife because of their lipophilic properties, and may cause developmental disturbances and cancer.

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