Page 84 - Aplikasi geofizik dalam geologi kejuruteraan

- Contoh kegunaan land use

Testing for radon gas in homes showed that many houses exceeded 800 Bq/m3

Health authorities defined three zones of decreasing risk based on proximity to a
known carbonatite intrusion. In 1996 a detailed, 200m line spaced airborne

gamma-ray spectrometry survey was commissioned This revealed some
exceptional associations between high eU levels and homes with high radon
concentrations JABATAN MINERAL & GEOSAINS MALAYSIA