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Indoor radon concentration, outdoor gamma dose rates and impactof geology in the Dhirkot area, Azad Jammu and Kashmir, sub-Himalayas,Pakistan

Published online by Cambridge University Press:  17 December 2010

A. Iqbal ,
M.S. Baig ,
M. Akram  and
S.A. Abbasi
A. Iqbal
Affiliation:
Department of Physics, University of Azad Jammu and Kashmir, Muzaffarabad, Pakistan.
M.S. Baig
Affiliation:
Institute of Geology, University of Azad Jammu and Kashmir, Muzaffarabad, Pakistan.
M. Akram
Affiliation:
Physics Research Division, PINSTECH, P.O. Nilore, Islamabad, Pakistan.
S.A. Abbasi
Affiliation:
Department of Physics, University of Azad Jammu and Kashmir, Muzaffarabad, Pakistan.
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Abstract

The sedimentary sandstone and clay sequence of the Miocene Kamlial and Murree Formationsis exposed in the sub-Himalayas of the Dhirkot area, State of Azad Jammu and Kashmir,Pakistan. The indoor radon and outdoor gamma dose rates were measured from dwellings andbasement sandstone and clay rocks, respectively. The radon concentration in dwellings was36 ± 14 Bq.m-3 to 195 ± 27 Bq.m-3, with an average of 121 ± 26Bq.m-3. The average radon concentration in pucka, semi-kucha and kucha houseswas 124 ± 25 Bq.m-3, 143 ± 25 Bq.m-3 and 136 ± 26Bq.m-3, respectively. The outdoor gamma dose rates for the basementsandstones and clays of the Murree Formation and Kamlial Formation were 74.0 ± 1.4–113.1± 2.4 nGy/h and 69.6 ± 2.2–108.8 ± 1.4 nGy/h, respectively. The average gamma doserates for the Murree and Kamlial Formations were 91.3 ± 14.3 nGy/h. The gamma dose rateis maximum (113.1 ± 2.4 nGy/h) and minimum (69.6 ± 2.2 nGy/h) at higher (5 539 feet)and lower (4 493 feet) altitudes, respectively. The overall causes for the increase inaverage radon concentration in dwellings of the Dhirkot area were poor ventilation, oldhouses, humidity and temperature, cracks in houses, geology, and aggregates. The gammadose rate variation depends on sandstone and clay lithologies, altitude and radionuclidecontributions. This study shows that the average radon (121 ± 26 Bq.m-3)concentration for the inhabitants of the Dhirkot area was within the accepted safe healthlimit (200 Bq.m-3, ICRP, 1993; UNSCEAR, 1993).

Keywords

Isotope geologyradongamma dose rateenvironmental radioactivity
Type
Article
Information
Radioprotection , Volume 45 , Issue 4 , October 2010 , pp. 523 - 535
Copyright
© EDP Sciences, 2010

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References

Akhtar S.S., Wali-Ullah., Hussain A., Muhammad R. (2004) Geological map of the Dhirkot area Muzaffarabad and Bagh Districts, AJK and parts of Rawalpindi and Abbottabad Districts. Geol. Surv., Pakistan, Geol. map series 2004, 5-16.
Akhtar, N., Tufail, M., Ashraf, M., Iqbal, M.M. (2005) Measurement of Environmental Radioactivity for estimation of radiation exposure from saline soil of Lahore, Pakistan, Radiat. Meas. 39, 11-14. Google Scholar
Akram, M., Khattak, N.U., Iqbal, A., Qureshi, A.A., Ullah, K., Qureshi, I.E. (2005) Measurement of radon concentration in dwellings of Skardu city Pakistan, Radiat. Meas. 40, 695-698. Google Scholar
Baig, M.S. (1991) Geochronology of pre-Himalayan and Himalayan tectonic events, northwest Himalaya, Pakistan, Kashmir Jour. Geol. 8-9, 197. Google Scholar
Baig M.S. (2006) Active faulting and earthquake deformation in Hazara-Kashmir syntaxis, Azad Kashmir, northwest Himalayas, Pakistan: Int. Sci. Conf. Earthquake in Pakistan, its implications and hazard mitigations, Islamabad, 20-21.
Baig, M.S., Lawrence, R.D. (1987) Precambrian to early Paleozoic orogenesis in the Himalaya, Kashmir Jour. Geol. 5, 1-22. Google Scholar
Chikasawa, K., Ishii, T., Sugiyama, H. (2001) Terrestrial gamma radiation in Kochi prefecture, Japan, Jour. Health Sci. 47(4), 362-372. Google Scholar
Choubey, V., Sharma, K.K., Ramola, R.C. (1997) Geology of Radon occurrence around Jari in Parvati Valley, Himachal Pradesh,India, Jour. Environ. Radioact. 34, 139-147. Google Scholar
Choubey, V.M., Bartarya, S.K., Negi, M.S., Ramola, R.C. (2003) Measurement of radon and thoron concentrations in the indoor atmosphere and drinking water of eastern Doon Valley, India, Indoor Built Environ. 12, 191-196. Google Scholar
Deka, P.C., Sarkar, S., Bhattacharjee, B., Goswami, T.D., Sarma, B.K., Ramchanran, T.V. (2003) Measurement of radon and thoron concentration by using LR-115 type-plastic track detectors in the environ of Bramaputra valley, Assam, India, Radiat. Meas. 36, 431-434.Google Scholar
Erees, F.S., Akozcan, S., Parlak, Y., Cam, S. (2006) Assessment of dose rates around Manisa Turkey, Radiat. Meas. 41, 598-601. Google Scholar
Fleischer R.L., Price P.B., Walker R.M. (1975) Nuclear tracks in solids: principles and applications. University of California Press, Berkley, pp. 1-200.
Franco-Marina, F., Villalba-Caloca, J., Segovia, N., Tavera, L. (2003) Spatial indoor radon distribution in Maxico city, Sci. Tot. Environm. 317, 91-103. Google Scholar
ICRP publication 65 (1993) Protection against radon at home and at work, International Commission on Radiological Protection, Ann. ICRP 23 (2).
Iimoto, T., Kosako, T., Sugiura, N. (2001) Measurement of summer Radon and its progeny concentrations along with environmental gamma dose rates in Taiwan, Jour. Environ. Radioact. 57, 57-66. Google Scholar
Iqbal, A., Baig, M.S., Akram, M., Bashir, A., Qureshi, A.A. (2007a) Measurement of radon concentration in dwellings of Muzaffarabad city Azad Kashmir, Northwest Himalayas, Pakistan, Eur. Jour. Sci. Res. 17, 373-378. Google Scholar
Iqbal, A., Baig, M.S., Akram, M., Rahim, S., Qureshi, A.A. (2007b). Measurement of radon concentration using SSNTD in dwellings of Rawalakot area, Azad Jammu and Kashmir, sub-Himalayas, Pakistan, Eur. Jour. Sci. Res. 17, 392-398. Google Scholar
Iqbal, A., Baig, M.S., Akram, M., Kazmi, A., Saleem, S., Qureshi, A.A. (2008) Radon levels in dwellings of Mirpur, Azad Kashmir, sub-Himalayas Pakistan, Indoor Built Environ. 17, 397-402. Google Scholar
Kam, E., Ahmet, B. (2007) Environmental radioactivity measurements in Kastamonu region of northern Turkey, Appl. Radioact. Isotopes 65, 440-444. Google ScholarPubMed
Khan, A.J. (2000) A study of indoor radon levels in Indian dwellings,influencing factors and lung cancer risks, Radiat. Meas. 32, 87-92. Google Scholar
Khan, M.A.H., Chowdhury, M.S. (2008) Radon measurements in some areas in Bangladesh, Radiat. Meas. 43, S410-S413. Google Scholar
Khan, M.A., Iqbal, M.J., Zafar, M.S., Jameel, K., Khan, H.A. (1997) Radon Concentration measurements in the Dwellings of Gujranwala city of Pakistan, Jour. Natural Sci. Math. 37(1-2), 51-60. Google Scholar
Khan, M.S., Naqvi, A.H., Azam, A. (2008) Study of indoor radon and its progeny levels in rural areas of north India using LR-115 plastic track detectors, Radiat. Meas. 43 , S385-S388. Google Scholar
Majvorn, B. (1986) Measurements of radon in dwellings with CR-39 track detectors, Nuclear Tracks 12(1-6), 763-766. Google Scholar
Ramola, R.C., Negi, M.S., Choubey, V.M. (2005) Radon and thoron monitoring in the environment of Kumaun Himalayas: survey and outcomes, Jour. Environ. Radioact. 79, 85-92. Google ScholarPubMed
Sannapa, J., Chandrashekara, M.S., Satish, L.A., Paramesh, L., Venkataramaiah, P. (2003) Study of background radiation dose in Mysore city, Karnataka State, India, Radiat. Meas. 37, 55-65. Google Scholar
Singh, S., Mehra, R., Singh, K. (2005a) Seasonal variation of indoor radon in dwellings of Malwa region, Punjab, Atmos. Environ. 39, 7761-7767. Google Scholar
Singh, S., Kumar, A., Singh, B. (2005b) Passive integrating radon studies for environmental monitoring in Hamirpur district, Himachal Pradesh, India using solid state nuclear track dectectors, Radiat. Meas. 39, 81-85. Google Scholar
Tufail, M., Khan, M.A., Ahmed, N., Khan, H.A., Zafar, N.M. (1992) Measurements of radon concentration in some cities of Pakistan, Radiat. Prot. Dosim. 40(1), 39-44. Google Scholar
Tufail, M., Ahmad, N. (1992) Measurement of radon in some cities of Pakistan and assessment of excess lung cancer risk, Nucl. Sci. Jour. 29(4), 263-272. Google Scholar
UNSCEAR (1993) United Nation Scientific Committee on the Effects of Atomic radiation, United Nations, New York.
UNSCEAR (2000) United Nation Scientific Committee on the Effects of Atomic radiation Report to the General Assembly, United Nations, New York.
Vaupotic, J., Krizman, M., Planinic, J., Pezdic, J., Adamic, K., Stegnar, P., Kobal, I. (1994) Systematic indoor radon and gamma measurements in Kindergartens and play schools in Slovenia, Health Phys. 66(5), 550-556. Google ScholarPubMed
Wadia D.N. (1928) The Geology of Poonch State (Kashmir) and adjacent portions of the Punjab, Mem. Geol. Surv., Indian Records, 11p.
Wadia, D.N. (1931) The syntaxis of the Northwest Himalaya: its rocks, tectonics and orogeny, Mem. Geol. Surv., Indian Records 65, 185-370. Google Scholar