Value Chain Activity

No. of samples analyzed

No. of samples positive

% of samples beyond acceptable levels (20 ppb)

Range (ppb)

Farmers

20

20

13 (65%)

Low

High

Mean ± SE

4.80

45.90

24.63 ± 2.67

Processor

10

10

3 (30%)

5.90

37.50

17.68 ± 3.07

Trader

10

10

6 (60%)

10.60

34.10

23.10 ± 2.47

Factory

3

3

-

6.30

11.90

8.76 ± 1.65

Landing site

2

2

1 (50%)

31.0

29.30

21.15 ± 8.15