Table 4 Mean estimated daily intake (MEDI) of potentially toxic and essential elements in rice varieties collected in 2018 and 2019 from the Colombo district, Sri Lanka

Madathawalu^a

55.7

73.8

11.6

12.9

111.7

104.0

90.2

99.1

2.4

2.7

Suwadel^a

31.5

38.3

11.4

12.8

81.7

87.0

77.4

78.6

3.5

3.9

Pachchaperuman^a

74.4

101.7

12.2

13.7

120.0

117.3

87.2

98.4

2.7

3.6

Kaluheenati^a

54.7

90.9

18.0

17.1

105.5

121.3

94.6

109.4

4.1

4.1

White nadu^b

21.5

32.9

8.5

11.7

28.7

37.3

34.7

47.7

2.4

2.7

White raw^b

20.5

16.2

9.6

9.8

44.9

50.7

62.2

63.3

2.6

2.9

White raw samba^b

14.0

34.2

8.9

9.8

44.2

55.1

54.3

62.8

2.1

2.3

Red nadu^b

41.4

64.2

11.4

11.9

66.3

76.2

42.8

90.4

2.8

3.2

Red raw^b

30.7

53.4

10.1

11.9

51.0

73.9

50.0

82.7

2.4

3.4

Red raw samba^b

27.7

50.0

8.3

11.0

97.9

93.5

74.4

91.6

 < 0.30

3.4

Samba^b

16.1

25.5

7.7

10.6

32.1

46.8

41.5

47.3

2.5

2.6

Keeri samba^b

12.6

23.1

10.0

11.6

30.8

40.0

33.9

39.1

2.3

2.7

Basmathi^c

33.4

20.2

9.2

8.7

37.3

38.4

61.1

60.3

4.3

3.4

Fragrant^c

16.3

10.1

9.5

8.3

42.0

35.7

107.5

61.7

3.2

2.5

^#Provisional tolerable daily intake × 10^–3 (mg/kg bw/d)

800

500

360

1000

33^d

Madathawalu^a

0.3

0.5

 < 0.30

0.7

 < 0.35

 < 0.35

1.9

 < 0.35

Suwadel^a

0.4

0.4

0.7

0.5

 < 0.35

 < 0.35

 < 0.35

 < 0.35

Pachchaperuman^a

0.6

0.4

 < 0.30

 < 0.30

 < 0.35

 < 0.35

 < 0.35

 < 0.35

Kaluheenati^a

0.7

0.7

0.4

 < 0.30

17.4*

 < 0.35

 < 0.35

0.6

White nadu^b

0.4

0.4

 < 0.30

 < 0.30

 < 0.35

0.4

 < 0.35

 < 0.35

White raw^b

 < 0.25

0.3

 < 0.30

0.6

 < 0.35

 < 0.35

 < 0.35

 < 0.35

White raw samba^b

 < 0.25

0.3

 < 0.30

 < 0.30

 < 0.35

 < 0.35

 < 0.35

 < 0.35

Red nadu^b

0.4

0.4

0.4

0.6

 < 0.35

0.5

 < 0.35

 < 0.35

Red raw^b

0.3

0.5

0.5

0.5

 < 0.35

 < 0.35

 < 0.35

 < 0.35

Red raw samba^b

0.5

0.4

0.5

0.4

1.5**

 < 0.35

0.4

1.4

Samba^b

 < 0.25

0.4

 < 0.30

 < 0.30

 < 0.35

1.0

 < 0.35

1.7

Keeri samba^b

0.4

0.4

 < 0.30

 < 0.30

 < 0.35

 < 0.35

 < 0.35

0.6

Basmathi^c

0.6

0.5

 < 0.30

 < 0.30

 < 0.35

 < 0.35

0.6

0.6

Fragrant^c

0.6

0.6

 < 0.30

 < 0.30

 < 0.35

 < 0.35

 < 0.35

 < 0.35

^#Provisional tolerable daily intake × 10^–3 (mg/kg bw/d)

3

1

1.5

50