Variation of radon (Rn) progeny concentrations in outdoor air as a function of time, temperature and relative humidity
2004; Elsevier BV; Volume: 39; Issue: 2 Linguagem: Inglês
10.1016/j.radmeas.2004.06.015
ISSN1879-0925
AutoresKulwant Singh, Manmohan Singh, Surinder Singh, H. S. Sahota, Z. Papp,
Tópico(s)Radiation Detection and Scintillator Technologies
ResumoA sensitive grab sampling technique was used to measure the equilibrium equivalent concentration of radon (222Rn) progeny, EECRn, outdoors at Bathinda, Punjab (India), over a period of 6 months. The method was based on the beta counting of aerosol samples collected on glass micro-fiber filters by drawing the air through the filters. Measurements, covering two of the three sessions of the day (morning, afternoon, evening), were performed two times per day at a fixed place at a height of 1.8 m above the ground surface. The total average value of EECRn was 5.62 Bq m-3, while the morning, afternoon and evening averages were 9.15, 2.85 and 5.33 Bq m-3, respectively. Negative correlation was observed for air temperature and EECRn, while positive correlation was found for relative humidity and EECRn, EECRn was higher in winter than in summer.
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