Dioxines, Furanes et PCB Flashcards

1
Q

PCDD ?

A

PolyChloroDibenzo-para-Dioxines

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2
Q

Structure de base dioxine ?

A

= O
/ \
Cycle aromatique Cycle aromatique
\ /
O

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3
Q

Nombre de congénères dioxines ?

A

75

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4
Q

Chlorophénols ?

A

Fusionnent par deux pour former des dibenzo-p-dioxines

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5
Q

PCB ? Exemple ?

A

PolyChloroBiphényles ex : pyralènes

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6
Q

Propriétés PCB ?

A

Liquides chimiques inertes, tension de vapeur basse, 209 congénères
cycle aromatique - cycle aromatique

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7
Q

PCDF ?

A

PloyChloroDibenzoFuranes

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8
Q

Caractéristiques PCDF ?

A

Issue de la contamination des PCB par des furanes, 135 congénères
cycle aromatique - cycle aromatique
\ /
O

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9
Q

TEQ ?

A

Echelle internationale d’équivalence de toxicité

TEQ = 1 pour 2,3,7,8-TCDD

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10
Q

TEF ?

A

Facteur d’équivalence de toxicité

TEF = C1 x TEQ1 + … + Cn xTEQn

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