Measurement of radon concentration in dwellings of Skardu city, Pakistan

Indoor radon concentration: impact of geology in the 2005 Kashmir earthquake-affected Bagh area, Azad Jammu and Kashmir, Pakistan

“…The present values of indoor radon concentration in Bagh, Azad Kashmir (Tab. I), were slightly higher than those reported in some dwellings of Rawalpindi, Pakistan(27 to 143 Bq·m -3 , Khan et al, 2005), Islamabad, Pakistan (9 to 36 Bq·m -3 , , Skardu, Pakistan (76.0 to 152.38 Bq·m -3 , Akram et al, 2005), Malwa, India (66.75 to 160.50 Bq·m -3 , Singh et al, 2005a), andIslamabad, Pakistan(11-78 Bq·m -3 , Rahman et al, 2008).…”

“…The rooms under investigation were on the ground floor. The dosimeters, after retrieval, were brought to the laboratory and CN 85 detectors were etched chemically with 6.25 N NaOH and scanned in the laboratory using an optical microscope at 400 × magnification for the determination of track density.The recorded track density was converted into Bq·m -3 by using the calibration factor for CN-85 detectors in box-type dosimeters as 0.0092 tracks cm -2 h -1 equal to 1 Bq·m -3 of 222 Rn (Tufail and Ahmad, 1992;Akram et al, 2005;Iqbal et al, 2008). General information about building material and year of construction was also recorded.…”

“…Various authors have attempted to correlate radon concentration with geological parameters Ramola et al, 2005;Sundal et al, 2005). Radon concentrations in the dwellings of Bagh and its surrounding areas were measured using the passive integrating solid state nuclear track detector technique (Fleischer et al, 1975;Akram et al, 2005;Iqbal et al, 2008). The Muzaffarabad Fault passes through the Bagh area, which was badly affected by the large Kashmir earthquake of October 8th 2005, of a magnitude of 7.5 on the Richter scale.…”

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

“…for CN-85 detectors in box-type dosimeters as 0.0092 tracks cm -2 h -1 equal to 1 Bq.m -3 of 222 Rn (Tufail and Ahmad, 1992;Akram et al, 2005;Iqbal et al, 2007aIqbal et al, , 2007b.…”

“…The exposure to radiation from radon and the lung cancer risks to inhabitants are dependent on the radon level in the houses. This study deals with the measurement of radon levels in the dwellings of Dhirkot and its surrounding areas by using the solid state nuclear track detector technique (Fleischer et al, 1975;Tufail and Ahmad, 1992;Vaupotic et al, 1994;Akram et al, 2005;Majvorn, 1986).…”