An alternative method for detection and categorisation of embedded asbestos in built environment

Exposure to asbestos remains a significant hazard in the built environment in the UK and all over the world. Considerable research exists on alternative materials and medical treatments but is limited in the area of detection and categorisation of embedded asbestos material. Accurate survey data is the first line of defence in reducing risks of potential exposure, however advances in technology do not appear to have been exploited with established manual and labour-intensive methods of detection and sample analysis remaining predominant. Six types of asbestos are regulated in the UK. This research investigates the potential application of microwave spectroscopy as an alternative method of analysis in detecting the unique characteristic properties of these minerals. Experimental research is undertaken to obtain empirical measurements of the microwave response signals of asbestos samples in the frequency range of 10 MHz to 15 GHz. Individual sample behaviour is measured in amplitude and frequency response leading to a successful proof of concept that microwave spectroscopy is a technology with the potential to be applied to the surveying functions of asbestos in the built environment pending further applied research.