CR- 39

(4.794

19.509)

kBq/m3 (8.241

19.508) kBq/m3

(1.015

1.338) ppm

1.176 ppm .100m

50%

2ppm

Determination of Radon and Uranium Concentration in some

Affected Areas in Mosul City

Asst. Lect. Hala Dyaa Kharrufa Department of Science

College of Basic Education / Mosul University

Abstract: This study is concerned with the concentration of radon and uranium in

three damaged areas by the war inside Mosul city which belong to Nineveh governorate in the north of Iraq in comparison with three nearby areas so the possibility of dangerous effect of radiation on human being can be studied by the use of nuclear track detector CR-39. The result show that the concentration of radon in damaged areas was ranged between (4.794

19.509) kBq/m3 ,while in the nearby areas the concentration was (8.241

19.508) kBq/m3. Regarding the Uranium concentration in the directly damaged areas which have been selected it was found to be ranged between (1.015

1.338) ppm with an average of 1.176 ppm, while it s concentration in nearby areas 100 m was 50% less than the damaged ones. However, the concentration may decrease more away 100m as moving further away for the damaged center and this means that there is a pollution with depleted uranium in the bombed areas since the allowed level according to the international nuclear agency was 2ppm.

[1] 222Rn 1899R.B.Owens

E.Rutherford

9.7 Kg/m3 - 61.8oC)

71oC)

[2]

[3] U- 238

222Rn226Ra3.825 day

5.49 Mev [4]

U238

(3- 4 ppm)

1600 year

[5] 75%

50%

[6]

40 m

1000222Rn [7]

[8]

[8,9,10]

[11,12]

NCCI

20112007

2008

[13]

100 m

21 days

3 cm

Rn220 7.2

cm

CR- 39

71 days238U

(1.3×1.3 cm240 gMettler PC

2000- 92.10- 2 g

(NaOH)6.25 M 70?±1 C

.

(Swift)

(400X)

Track/cm2[14]

..(1)

Ca=

C90 kBq/m3 t48

hr 96768 Tr/cm2

t71 day

(The School of Physics and Space Research at the University of Birmingham, England)[15].

CWBq/m3

. (2) L

thCC Rna

w

CaBq/m3 Rn

0.1814/day h

7.2 cmL1.2 cm

ABq

.(3) ARn = CwV

V = r2L .(4)

V m3 r= 3 cm

NRn

ARn = Rn NRn . (5)

NU U = NRn Rn .. ..(6)

U4.8833×10- 18 s- 1WU(gm)

WU = . . ..(7)

AU238UNav6.022 ×1023

mole- 1ppm

CU(ppm)= = ..(8)

Ws

1

100 m1

1

A1

A2

B1

B2

C1

C2

1

(2)

(Tr/cm2)

Background(165 Tr/cm2)2

(14.794

19.509) kBq/m3

8.241

19.508) kBq/m3

B2

2

[16]

1991.( 77 - 178) kBq/ m3

(6- 50) kBq/m3[17] Zunic et al.

Vukotich et al.[18] 10 - 90) kBq/m3

ICRP)

(200

800) Bq/m3

]16[

20- 10

NCCI

2011[13]

ppm(0.2- 0.3)[10]

2

(Tr/cm2)

Ca (KBq/m3) Cs (KBq/m3)

A1 9345.704 0.263 18.920

A2 4071.006 0.106 8.241

B1 9636.563 0.271 19.509

B2 9635.813 0.252 19.508

C1 7307.612 0.205 14.794

C2 4254.063 0.111 8.612

(3)

.ppm34

0.565

1.338) ppm

B1 , B2

2ppm[19]

[16](8.17- 19.17) ppm

[20] Buzby

[10]

(1.25,

0.31, 0.2) ppm

[21] 238U1.59 ppm.

5

2000

2017[22]6

3

ARn (Bq) Nu ×1016 (atom) Wu ×10- 6 (g) Cu (ppm)

A1 0.641 13.139 51.929 1.298

A2 0.279 5.723 22.620 0.565

B1 0.661 13.548 53.546 1.338

B2 0.661 13.547 53.541 1.338

C1 0.501 10.274 40.605 1.015

C2 0.292 5.980 23.637 0.590

3Rn-222

4U-238

A A B B C C

Conse

ntr

ati

on

of U

-238

ppm

05

10152025

A1 A2 B1 B2 C1 C2Cons

entr

atio

n of

Rn-

222(

KBq/

M3 )

6

[15]

5

-

10

-

-

-

-

-

-

CR- 3915B

3- Bruzzi L., Mele R. and Padoani F.(1992) , Evalution of gamma and alpha dose due to natural radioactivity of building materials Prot. 12.pp (67-76). 4- Maged A.F., Tsuruta Takao and Durrani S.A. (1993),"Experimental and theoretical considerations on the calibration factor K between a-activity".

- (1994)

-

-

-

-

9- AL-Jundi J. and Haninger T. (2003),"Radon-222 concentration in houses of Russaifa city in Jordan". Abhath Al-Yarmouk:Basic Sci. and Eng. Vol 12, no.1,pp.181-190.

-

11- Khan A., Sharmak K.C., Vershney A.K., (1988). "Radon Estimation in Some India Tobacco,Tea, Tooth Powder Using CR-39 Nuclear Track Detector". Radiat. Environ. Biophys., 27, 99. pp. 233-237.

-

CR- 39

13- NGO COORDINATION COMMITTEE FOR IRAQ.NCCI Brief:Enviromental Contaminants from War Remnants in Iraq, June,(2011). 14- Al-Bataina B.A., Ismail A.M.,Kullab M.K.,Abumurad K.M.and Mustafa H. (1997), "Radon Measurement in different Types of natural waters in Jordan", Radiat. Meas.,Vol.28, no.(1-6) ,pp.591-594. 15- Cross F.T.; Harley N.H. and Hofman W. (1985), "Helth effects and Risks from Rn-222 in drinking water". Health physics, 48, pp.649-670.

-

SSNTD sHPGe

17- uni Z.S., Kozak K., Ciotoli G., Ramola R.C., Kochowska E.Uji P.,

elikovi I.,Mazur J., Janik M.,Demajo A., Birovljev A., Bochicchio F., Yarmoshenko I.V.Kryeziu D.and Olko P. (2007), A campaign of discrete radon concentration measurements in soil of Ni ka Banja town, Serbia . Radiat. Meas., Vol.42, no. 10, pp.1696-1702, abs., www. Sciencedirect.com/ science (Internet). 18- Vukotich P.,Uvaro V.V., Antovich N. and Dapchevich S. (2002), Radon consentrations in soil of city of Padgorica, Montenegro , Geofisica International, Vol.41, no.3, pp.277-280. 19- International Atomic Energy Agency, Depleted Uranium available, www.iaea.org/newscenter/features/du/du_qaa.shtml. 20- Buzby C. (2001).

Hot News from Iraq . LLRC J. Radioactive Times. Vol.4 No.2

- (2004)

HPGeCR- 39

-

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