District

Arsenic concentration (µg/L)

Total
Sample

Below 10

11 – 50

51 – 300

Above 300

BAGERHAT

108

50

120

89

367

(Percentage)

29.4%

13.6%

32.7%

24.3%

BANDARBAN

43

0

0

0

43

(Percentage)

100.0%

.0%

.0%

.0%

BARGUNA

42

4

0

0

46

(Percentage)

91.3%

8.7%

.0%

.0%

BARISAL

212

87

266

240

805

(Percentage)

26.3%

10.8%

33.0%

29.8%

BHOLA

59

7

0

0

66

(Percentage)

89.4%

10.6%

.0%

.0%

BOGRA

635

111

32

1

779

(Percentage)

81.5%

14.2%

4.1%

.1%

BRAHMANBARIA

20

9

21

0

50

(Percentage)

40.0%

18.0%

42.0%

.0%

CHANDPUR

52

31

662

306

1051

(Percentage)

4.9%

2.9%

63.0%

29.1%

CHAPAINAWABGANJ

855

371

486

99

1811

(Percentage)

47.2%

20.5%

26.8%

5.5%

CHITTAGONG

344

23

21

0

388

(Percentage)

88.7%

5.9%

5.4%

.0%

CHUADANGA

134

219

87

26

466

(Percentage)

28.8%

47.0%

18.7%

5.6%

COMILLA

115

24

162

244

545

(Percentage)

21.1%

4.4%

29.7%

44.8%

COXS BAZAR

52

0

0

0

52

(Percentage)

100.0%

.0%

.0%

.0%

DHAKA

431

30

93

3

557

(Percentage)

77.4%

5.4%

16.7%

.5%

DINAJPUR

2614

23

0

0

2637

(Percentage)

99.1%

.9%

.0%

.0%

FARIDPUR

258

144

211

83

696

(Percentage)

37.1%

20.7%

30.3%

11.9%

FENI

58

42

68

6

174

(Percentage)

33.3%

24.1%

39.1%

3.4%

GAIBANDHA

889

293

59

5

1246

(Percentage)

71.3%

23.5%

4.7%

.4%

GAZIPUR

3316

29

24

17

3386

(Percentage)

97.9%

.9%

.7%

.5%

GOPALGANJ

94

57

158

20

329

(Percentage)

28.6%

17.3%

48.0%

6.1%

HABIGANJ

32

29

3

0

64

(Percentage)

50.0%

45.3%

4.7%

.0%

JAMALPUR

250

66

8

2

326

(Percentage)

76.7%

20.2%

2.5%

.6%