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08

02

51

0

55

5

2

58

89

77

6

9

78

9

5

27

28

61

14

50

76

<= < <=< <= >

<= < <= < <= >

<= < <= < <= >

<= < <= < <= >

≥ ≥

0% 5% 10% 15% 20% 25% 30% 35% 40% 45% 50% 55%

* Atrazine déséthyl

* Atrazine

Bentazone

* Atrazine déisopropyl

* Simazine

Chlortoluron

* Diuron

* Dinoterbe

Métazachlore

* Déséthyl-terbuméthon

* Terbuthylazine désethyl

Isoproturon

* Terbuthylazine

* Oxadixyl

* 2,6-Dichlorobenzamide

Desmethylnorflurazon

AMPA

* Ethidimuron

2,4-MCPA

Glyphosate

* Métolachlore

Tetraconazole

Ethofumésate

Diflufenicanil

mo

lécu

le

% de quantification

>

μ >

> >

< >

< >

08

02

51

10

55

52

21

58

89

77

60

95

78

91

45

27

28

61

14

50

76

Rivières de

Basse-Normandie