Agricultural areas

Béré upstream watershed (BUW)

Béré downstream watershed (BDW)

Minima

Median

Maxima

Detection

%

Minima

Median

Maxima

Detection

%

Pesticide biological famillies

Herbicides a

41.10

134.04

799.47

100

17.40

65.29

182.16

100

Insecticides

0.09

17.29

168.77

100

0.09

12.6

39.74

100

Fungicides

<0.022

5.75

21.56

85.71

<0.022

8.71

17.71

69.23

Pesticide chemical famillies

Organophosphates

<0.032

17.29

44.64

85.7

<0.032

12.60

36.13

92.3

Organochlorines

<0.022

0.09

3.84

57.1

<0.022

0.09

3.23

53.8

Alkylchorophenoxys

<0.022

<0.022

3.23

42.9

<0.022

<0.022

4.03

46.2

Phosphonoglycines

<0.022

<0.022

2.85

42.9

<0.022

<0.022

3.03

46.2

Carbamates

<0.022

<0.022

138.75

14.3

<0.022

<0.022

22.08

7.69

Urea substitutes

11.59

52.14

303.75

100,00

1.01

44.02

76.96

100

Phenylureas

<0.022

5.50

195.47

71.4

<0.022

3.44

12.17

92.3

Chloroacetamides

0.07

9.81

16.59

100

0.07

10.31

22.79

100

Triazines a

7.70

79.37

292.43

100

<0.022

5.23

112.15

69.2

Oxazoles

<0.022

5.75

21.56

85.7

<0.022

8.71

17.71

69.2

Pyrethroids

<0.039

<0.039

3.1

42.9

<0.039

<0.039

2.73

46.2

Pesticides active matters

Organophosphates

Parathion-methyl

<0.032

3.00

7.74

78.57

<0.032

2.45

4.17

53.85

Chlorfenvinphos a

<0.032

8.94

11.45

85.71

<0.032

3.98

17.13

53.85

Parathion-ethyl

<0.032

1.10

20.13

57.14

<0.032

2.33

15.32

69.23

Profenofos

<0.032

<0.032

4.21

35.71

<0.032

<0.032

3.4

38.46

Chlorpyrifos ethyl

<0.032

<0.032

5.00

42.86

<0.032

<0.032

3.87

53.85

Paraquart

<0.032

<0.032

3.98

42.86

<0.032

<0.032

3.47

53.85

Organochlorines

Endosulfan

<0.022

0.09

3.84

57.14

<0.022

0.09

3.23

61.54

Alkylchorophenoxys

2.4 D

<0.022

<0.022

3.23

42.86

<0.022

<0.022

4.03

53.85

Phosphonoglycines

Glyphosate

<0.022

<0.022

2.85

42.86

<0.022

<0.022

3.03

53.85

Carbamates

Aldicarb

<0.022

<0.022

138.75

14.29

<0.022

<0.022

22.08

7.69

Chlorpropham

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

Urea substitutes

Metoxuron

<0.022

6.66

53.05

64.29

<0.022

5.70

9.99

76.92

Methabenzthiazuron

<0.022

5.48

12.25

71.43

<0.022

8.32

18.01

69.23

Chlortoluron

<0.022

8.53

218.32

78.57

<0.022

10.12

18.92

84.62

Monolinuron

<0.022

0.37

14.16

50.00

<0.022

<0.022

14.16

30.77

Isoproturon

<0.022

0.71

11.21

78.57

<0.022

<0.022

15.05

46.15

Metobromuron

<0.022

<0.022

28.33

42.86

<0.022

2.01

20.09

69.23

Linuron

<0.022

7.94

24.73

64.29

<0.022

<0.022

12.84

38.46

Fenuron

<0.022

<0.022

15.33

35.71

<0.022

<0.022

9.32

7.69