“…With each report also comes a wide range of potential sources. Predictions vary from mechanical sources (generators, worn industrial machines, ventilation systems (e.g., Berglund et al, 1996;Pedersen et al, 2008), gas pipelines (Krylov, 1995), ground borne vibrations (e.g., Manley and Styles, 2002;Rushforth et al, 2002), radio towers (Cowan, 2008), and, to human physiological traits such as psychological problems and tinnitus (Rice, 1994;Leventhall et al, 2003).…”