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Environmental radon studies using solid state nuclear track detectors.

Surinder Singh1, Dinesh Kumar Sharma, Ajay Kumar

  • 1Department of Physics, Guru Nanak Dev University, Amritsar 143 005, India. surinder51@yahoo.com

Journal of Environmental Radioactivity
|July 21, 2004
PubMed
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Indoor radon levels in 70 dwellings in India's Nurpur area were measured over a year. Most homes exceeded recommended radon activity action levels, indicating potential health risks.

Area of Science:

  • Environmental Science
  • Radiological Protection
  • Public Health

Background:

  • Radon is a naturally occurring radioactive gas that can accumulate indoors.
  • Elevated indoor radon concentrations pose a significant health risk, particularly lung cancer.
  • Understanding regional radon levels is crucial for implementing effective public health strategies.

Purpose of the Study:

  • To measure and report indoor radon activity in dwellings within the Nurpur area, Kangra district, Himachal Pradesh, India.
  • To assess the annual average indoor radon concentrations across 17 villages.
  • To compare the measured radon levels with international safety guidelines.

Main Methods:

  • Utilized LR-115 Type 2 films in bare mode for radon detection.

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  • Conducted year-long measurements, with film exposure over four distinct three-month seasons.
  • Employed a calibration constant of 0.020 tracks cm(-2) d(-1) per Bq m(-3) for data analysis.

    • Main Results:

    • Recorded annual average indoor radon concentrations ranging from 168±46 Bq m(-3) to 429±71 Bq m(-3).
    • Identified that the majority of measured indoor radon values fall within the action level range of 200-600 Bq m(-3).
    • Data covers 70 dwellings across 17 villages in the study area.

    Conclusions:

    • Indoor radon levels in the Nurpur area are a concern, with most sites exceeding or nearing recommended action levels.
    • The findings highlight the need for further investigation and potential mitigation strategies in the region.
    • This study provides essential data for radiological protection and public health initiatives in Himachal Pradesh.