N˚1

Localities/Countries

CRn (Bq/m3)

Inhalation Dose (mSv)

RRLC (%)

Dose to lung (mSv/y)

LLC × 10−6

ELCR

1

Poli (EICs)

294

5.93

1.29

14.22

106.69

1.96E−02

2

Lolodorf (EICs)

687

13.85

1.82

33.24

249.30

4.57E−02

3

Lolodorf (RADUET)

92

1.85

1.08

4.45

33.38

6.12E−03

4

Bakassi (EICs)

1280.0

25.80

3.06

61.93

464.49

8.52E−02

5

Douala (RADUET)

139

2.80

1.13

6.73

50.44

9.25E−03

6

Betaré-Oya (RADUET)

133

2.68

1.12

6.44

48.26

8.85E−03

9

EPA (US)

148

2.98

1.14

7.16

53.71

9.85E−03

10

WHO

100

2.02

1.09

4.84

36.29

6.65E−03

11

ICRP

300

6.05

1.30

14.52

108.86

2.00E−02

Min (Cameroon)

92.00

1.85

1.08

4.45

33.38

6.12E−03

Max (Cameroon)

1280

25.80

3.06

61.93

464.49

8.52E−02

Average (Cameroon)

437.50

8.82

1.59

21.17

158.76

2.91E−02